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CY8C20110 capsense express? -10 configurable gpios with pwm control cypress semiconductor corporation ? 198 champion court ? san jose , ca 95134-1709 ? 408-943-2600 document number: 001-17345 rev. *e revised september 06, 2008 features 10 configurable ios supporting ? capsense tm buttons ? led drive ? all gpios support led dimming with configurable delay op- tion ? interrupt outputs. ? wake on interrupt input ? bi-directional sleep control pin ? user defined input or output 2.4v to 3.6v and 4.75v to 5.25v operating voltage industrial temperature range: ?40c to +85c i 2 c slave interface for configuration and communication ? i2c data transfer rate up to 400 kbps reduce bom cost ? internal oscillator - no external oscillators or crystal ? free development tool - no external tuning components low operating current ? active current: continu ous sensor scan: 1.5 ma ? deep sleep current: 4 ua available in 16-pin col and 16-pin soic packages overview the capsense express tm controller allows the control of 10 ios configurable as capacitive s ensing buttons or as gpios for driving leds or interrupt signals based on various button conditions. the CY8C20110 is optimized for dimming leds in 15 selectable duty cycles for back light applications. the device can be configured to have up to 10 gpios connected to the pwm output. the pwm duty cycle is pr ogrammable for variable led intensities. the user has the ability to config ure buttons, outputs, and param- eters through specific commands sent to the i 2 c port. the ios have the flexibility of mapping to capacitive buttons and as standard gpio functions such as interrupt output or input, led drive, and digital mapping of input to output using simple logical operations. this enables easy pcb trace routing and reduces the pcb size and stack up. capsense express products are designed for easy integration into complex products. architecture the logic block diagram illustrates the internal architecture of CY8C20110. the user is able to configure registers with parameters needed to adjust the operati on and sensitivity of the capsense system. CY8C20110 supports a standard i 2 c serial communication interface that allows the host to configure the device and to read sensor information in real time through easy register access. the capsense express core the capsense express core has a powerful configuration and control block. it en compasses sram for data storage, an interrupt controller, along with sleep and watchdog timers. system resources provide additional capability, such as a config- urable i 2 c slave communication interface and various system resets. the analog system cont ains the capsense psoc block which supports capacitive sensing of up to 10 inputs. [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 2 of 18 logic block diagram 10 configurable ios with capsense express tm core 2kb flash 512b sram external vcc 2.4 - 5.25v pwm control system bus configuration and control engine sleep and watchdog clock sources (internal main oscillator) interrupt controller capsense block i2c slave voltage and current reference system resets system bus por/ lvd [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 3 of 18 pinouts figure 1. pin diagram - 16 pin col table 1. pin definitions - 16 pin col pin number name description 1 gp0[0] configurable as capsense or gpio 2 gp0[1] configurable as capsense or gpio 3i 2 c scl i 2 c clock 4i 2 c sda i 2 c data 5 gp1[0] configurable as capsense or gpio 6 gp1[1] configurable as capsense or gpio 7 vss ground connection 8 gp1[2] configurable as capsense or gpio 9 gp1[3] configurable as capsense or gpio 10 gp1[4] configurable as capsense or gpio 11 xres active high external reset with internal pull down 12 gp0[2] configurable as capsense or gpio 13 vdd supply voltage 14 gp0[3] configurable as capsense or gpio 15 csint integrating capacitor input. the extern al capacitance is required only if 5:1 snr cannot be achieved. typical range is 10-100 nf 16 gp0[4] configurable as capsense or gpio col (top view) [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 4 of 18 figure 2. pin diagram - 16 pin soic table 2. pin definitions - 16 pin soic pin number name description 1 gp0[3] configurable as capsense or gpio 2 csint integrating capacitor input.the exter nal capacitance is required only if 5:1 snr cannot be achieved. typical range is 10-100 nf. 3 gp0[4] configurable as capsense or gpio 4 gp0[0] configurable as capsense or gpio 5 gp0[1] configurable as capsense or gpio 6i 2 c scl i 2 c clock 7i 2 c sda i 2 c data 8 gp1[0] configurable as capsense or gpio 9 gp1[1] configurable as capsense or gpio 10 vss ground connection 11 gp1[2] configurable as capsense or gpio 12 gp1[3] configurable as capsense or gpio 13 gp1[4] configurable as capsense or gpio 14 xres active high external reset with internal pull down. 15 gp0[2] configurable as capsense or gpio 16 vdd supply voltage gp0[3] 1 2 3 4 5 6 7 8 soic (top view) v dd v ss gp0[4] gp0[0] gp0[1] i2cscl i2csda gp1[0] gp1[3] gp1[4] gp0[2] xres 16 15 14 13 12 11 10 9 csint gp1[1] gp1[2] [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 5 of 18 the capsense analog system the capsense analog system contai ns the capacitive sensing hardware which supports capsense successive approximation (csa) algorithm. this hardware performs capacitive sensing and scanning without external components. capacitive sensing is configurable on each pin. additional system resources system resources provide additional capability useful to complete systems. additional resources are low voltage detection and power on reset (por). the i 2 c slave provides 50, 100, or 400 khz communication over two wires. low voltage detection (lvd) interrupts signal the application of falling voltage levels and the advanced por circuit elimi- nates the need for a system supervisor. an internal 1.8v reference provides a stable internal reference so that capacitive sensing functi onality is not affected by minor v dd changes. i 2 c interface the two modes of operation for the i 2 c interface are: device register configuration and status read or write for controller command execution the i 2 c address is programmable during configuration. it is locked to prevent accidental change by setting a flag in a config- uration register. capsense express software tool an easy to use software tool integrated with psoc express is available for configuring and tuning capsense express devices. refer to the application note ?capsense (tm) express software tool - an42137? for details of the software tool. capsense express register map capsense express supports user configurable registers through which the device functionality and parameters are configured. for details, refer to ?cy8c201xx register reference guide? document. led dimming to change the brightness and intensity of the leds, the host master (mcu, mpu, dsp, and so on) must send i 2 c commands and program the pwm registers to enable output pins, set duty cycle, and mode configuratio n. the single pwm source is connected to all gpio pins and have a common user defined duty cycle. each pwm enabled pin has two possible outputs: pwm and 0/1 (depending on the configuration). four different modes of led dimming are possible, as shown in figure 3 to figure 6. the operation mode of the pwm enabled pins is common. this means th at one pin cannot behave as in mode1 and another pin as in mode 2. [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 6 of 18 figure 3. led dimming mode 1: change intensity on on/off button status [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 7 of 18 figure 4. led dimming mode 2: flash intensity on on button status figure 5. led dimming mode 3: hold intensity after on off button transition [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 8 of 18 modes of operation capsense express devices are configured to operate in any of the following three modes to meet different power consumption requirements: active mode sleep mode deep sleep mode active mode in the active mode, all the devi ce blocks including the capsense sub system are powered. typical active current consumption of the device across the operating voltage range is 1.5 ma sleep mode sleep mode provides an intermediate power operation mode. it is enabled by configuring the corresponding device register. when enabled, the device enters sleep mode and wakes up after a specified sleep interval. it scans the capacitive sensors before going back to sleep again. the device can also wake up from sleep mode with a gpio interrupt. the following sleep intervals are supported in capsense express. the sleep interval is configured through registers. 1.95 ms (512 hz) 15.6 ms (64 hz) 125 ms (8 hz) 1s (1 hz) deep sleep mode deep sleep mode provides the lowest power consumption because there is no operation running. in this mode, the device is woken up only using an external gpio interrupt. a sleep timer interrupt cannot wake up a device from deep sleep mode. this is treated as a continuous sleep mode without periodic wakeups. refer to the application note ?capsense express power and sleep considerations - an44209? for details on different sleep modes. bi-directional sleep control pin the CY8C20110 requires a dedicated sleep control pin to allow reliable i2c communication in case any sleep mode is enabled. this is achieved by pulling the sleep control pin low to wake up the device and start i2c communication. the sleep control pin is configured on any of the gpio. if sleep control feature is enabled, the device have one less gpio available for capsense/gpio functions. the sleep control pin can also be configured as interrupt output pin from CY8C20110 to the host to acknowledge finger press on any button. figure 6. led dimming mode 4: toggle intensity on on off or off on button transitions [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 9 of 18 electrical specifications absolute maximum ratings parameter description min typ max unit notes t stg storage temperature ?55 25 +100 c higher storage temperatures reduce data retention time. recommended storage temperature is +25c 25c (0c to 50c). extended duration storage temperatures ab ove 65c degrades reliability. t a ambient temperature with power applied ?40 ? +85 c v dd supply voltage on v dd relative to v ss ?0.5 ? +6.0 v v io dc input voltage v ss ? 0.5 ? v dd + 0.5 v v ioz dc voltage applied to tri-state v ss ? 0.5 ? v dd + 0.5 v i mio maximum current into any gpio pin ?25 ? +50 ma esd electrostatic discharge voltage 2000 ? - v human body model esd lu latch up current - ? 200 ma operating temperature parameter description min typ max unit notes t a ambient temperature ?40 ? +85 oc t j junction temperature ?40 ? +100 oc dc electrical characteristics dc chip level specifications parameter description min typ max unit notes v dd supply voltage 2.40 ? 5.25 v i dd supply current ? 1.5 2.5 ma conditions are v dd = 3.0v, t a = 25c i sb deep sleep mode current with por and lvd active. ?2.64av dd = 2.55v, 0c < t a < 40c i sb deep sleep mode current with por and lvd active. ?2.85av dd = 3.3v, ?40c < t a < 85c i sb deep sleep mode current with por and lvd active. ?5.26.4av dd = 5.25v, ?40c < t a < 85c [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 10 of 18 5v and 3.3v dc general purpose io specifications this table lists guaranteed maximum and minimum specifications for the voltage and temperature rang es: 4.75v to 5.25v and -40c < ta< 85c, 3.0v to 3.6v and -40c< ta< 85c respectively. typical parameters apply to 5v and 3.3v at 25c. these are for design guidance only. parameter description min typ max unit notes r pu pull up resistor 4 5.6 8 k v oh1 high output voltage port 0 pins v dd ? 0.2 ? ? v ioh < 10 a, v dd > 3.0v, maximum of 20 ma source current in all ios. v oh2 high output voltage port 0 pins v dd ? 0.9 ? ? v ioh = 1 ma,v dd > 3.0v, maximum of 20 ma source current in all ios. v oh3 high output voltage port 1 pins v dd ? 0.2 ? ? v ioh < 10 a, v dd > 3.0v, maximum of 10 ma source current in all ios. v oh4 high output voltage port 1 pins v dd ? 0.9 ? ? v ioh = 5 ma, v dd > 3.0v, maximum of 20 ma source current in all ios. v oh5 high output voltage port 1 pins with 3.0v ldo regulator enabled 2.75 3.0 3.2 v ioh < 10 a, v dd > 3.1v, maximum of 4 ios all sourcing 5ma. v oh6 high output voltage port 1 pins with 3.0v ldo regulator 2.2 ? ? v ioh = 5 ma, v dd > 3.1v, maximum of 20 ma source current in all ios. v oh7 high output voltage port 1 pins with 2.4v ldo regulator 2.1 2.4 2.5 v ioh < 10 a, v dd > 3.0v, maximum of 20 ma source current in all ios. v oh8 high output voltage port 1 pins with 2.4v ldo regulator enabled 2 ? ? v ioh < 200 a,v dd > 3.0v, maximum of 20 ma source current in all ios. v ol low output voltage ? ? 0.75 v iol = 20 ma, v dd > 3v, maximum of 60 ma sink current on even port pins and 60 ma sink current on odd port pins v il input low voltage ? ? 0.75 v v dd = 3 to 3.6v v ih input high voltage 1.6 ? ? v v dd = 3 to 3.6v v il input low voltage ? ? 0.8 v v dd = 4.75v to 5.25v v ih input high voltage 2.0 ? ? v v dd = 4.75v to 5.25v v h input hysteresis voltage ? 140 ? mv i il input leakage ? 1 ? na gross tested to 1 a. c in capacitive load on pins as input 0.5 1.7 5 pf package and pin dependent. temp = 25c c out capacitive load on pins as output 0.5 1.7 5 pf package and pin dependent. temp = 25c [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 11 of 18 2.7v dc general pur pose io specifications this table lists guaranteed maximum and minimu m specifications for the voltage and temperature ranges: 2.4v to 3.0v and -40c< ta < 85c, respectively. typical parameters apply to 2.7v at 25c. these are for design guidance only. parameter description min typ max unit notes r pu pull up resistor 4 5.6 8 k v oh1 high output voltage port 0 pins v dd ? 0.2 ? ? v ioh <10 a, maximum of 10 ma source current in all ios. v oh2 high output voltage port 0 pins v dd ? 0.5 ? ? v ioh = 0.2 ma, maximum of 10 ma source current in all ios. v oh3 high output voltage port 1 pins v dd ? 0.2 ? ? v ioh < 10 a, maximum of 10 ma source current in all ios. v oh4 high output voltage port 1 pins v dd ? 0.5 ? ? v ioh = 2 ma, maximum of 10 ma source current in all ios. v ol low output voltage ? ? 0.75 v iol = 10 ma, maximum of 30 ma sink current on even port pins and 30 ma sink current on odd port pins v olp1 low output voltage port 1 pins ? ? 0. 4 v iol=5ma maximum of 50ma sink current on even port pins and 50ma sink current on odd port pins 2.4< v dd < 3.6v v il input low voltage ? ? 0.75 v v dd = 2.4 to 3.6v. v ih1 input high voltage 1.4 ? ? v v dd = 2.4 to 2.7v. v ih2 input high voltage 1.6 ? ? v v dd = 2.7 to 3.6v v h input hysteresis voltage ? 60 ? mv i il input leakage ? 1 ? na gross tested to 1 a. c in capacitive load on pins as input 0.5 1.7 5 pf package and pin dependent. temp = 25c. c out capacitive load on pins as output 0.5 1.7 5 pf package and pin dependent. temp = 25c. 2.7v dc spec for i2c line with 1.8v external pull up this table lists guaranteed maximum and minimu m specifications for the voltage and temperature ranges: 2.4v to 3.0v and -40c< ta < 85c, respectively. typical parameters apply to 2.7v at 25c. th e i2c lines drive mode must be set to open drain and pulled up to 1.8v externally. parameter description min typ max unit notes v olp1 low output voltage port 1 pins ? ? 0.4 v iol=5ma maximum of 50ma sink current on even port pins and 50ma sink current on odd port pins 2.4< v dd < 3.6v v il input low voltage ? ? 0.75 v v dd = 2.4 to 3.6v. v ih input high voltage 1.4 ? ? v v dd = 2.4 to 2.7v. c in capacitive load on pins as input 0.5 1.7 5 pf package and pin dependent. te m p = 2 5 c . c out capacitive load on pins as output 0.5 1.7 5 pf package and pin dependent. te m p = 2 5 c . [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 12 of 18 dc programming specifications this table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75v to 5.25v and -40c< ta< 85c, 3.0v to 3.6v and -40c< ta< 85c, or 2.4v to 3.0v and -40c< ta< 85c, respectively. typical parameters apply to 5v, 3.3v, or 2.7v at 25c. these are for design guidance only. fl ash endurance and retention spec ifications with the use of eep rom user module are valid only within the range : 25c20c during the flash write operation. refer to the eeprom user module data shee t instructions for eeprom flash write requir ements outside the 25 c20c temperature window. use of this user module for flash writes outside this range must occur at a known die temperature (20c) and requires the designer to configure the temperature as a variable rather than the default 25c val ue hard coded into the api. all use of this um api outside the range of 25c20c is at the user?s own risk. this risk includes overwriting the flash cell (when above the allowab le temperature range) thereby reducing the data sheet specified endurance pe rformance or underwriting th e flash cell (when below t he allowable temperature range) thereby reducing the data sheet specified retention. dc por and lvd specifications parameter description min typ max unit notes v ppor0 v ppor1 v dd value/ ppor trip for v dd = 2.7v v dd = 3.3v, 5v ? ? 2.36 2.60 2.40 2.65 v v v dd must be greater than or equal to 2.5v during startup, reset from the xres pin, or reset from watchdog. vlvd0 vlvd2 vlvd6 v dd value for lvd trip v dd = 2.7v v dd = 3.3v v dd = 5v 2.39 2.75 3.98 2.45 2.92 4.05 2.51 2.99 4.12 v v v symbol description min typ max units notes vdd iwrite supply voltage for flash write operations [2] 2.7 ? ? v i ddp supply current during programming or verify ? 5 25 ma v ilp input low voltage during programming or verify ? ? 0.8 v v ihp input high voltage during programming or verify 2.2 ? ? v i ilp input current when applying vilp to p1[0] or p1[1] during programming or verify ? ? 0.2 ma driving internal pull down resistor. i ihp input current when applying vihp to p1[0] or p1[1] during programming or verify ? ? 1.5 ma driving internal pull down resistor. v olv output low voltage during programming or verify ? ? vss + 0.75 v v ohv output high voltage during programming or verify vdd ?1.0 ? vdd v flash enpb flash endurance (per block) 50,000 ? ? ? erase/write cycles per block. flash ent flash endurance (total) 1,800,0 00 ? ? ? erase/write cycles. flash dr flash data retention 10 ? ? years note 1. commands involving flash writes (0x01, 0x02, 0x03) must be ex ecuted only within the same vcc voltage range detected at por (p ower on, xres, or command 0x06) and above 2.7v. for register details, refer to cy8c201xx regi ster reference guide. if the user powers up the device in th e 2.4v?3.6v range, flash writes must be performed only between 2.7v and 3.6v. if the user powers up the device in the 4.75v?5.25v range, flash writes must be perfor med in that range only. [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 13 of 18 capsense electrical characteristics max (v) typical (v) min (v) low voltage cutoff (v) notes 5.25 5.0 4.75 4.73 see notes [5] and [6] 3.6 3.3 3.02 ? see note [2] 3.02 2.7 2.45 2.45 see notes [3] and [4] ac electrical characteristics 5v and 3.3v ac general purpose io specifications parameter description min max unit notes trise0 rise time, strong mode, cload = 50pf, port 0 15 80 ns v dd = 3.0v to 3.6v and 4.75v to 5.25v, 10% - 90% trise1 rise time, strong mode, cload = 50pf, port 1 10 50 ns v dd = 3.0v to 3.6v, 10% - 90% tfall fall time, strong mode, cload = 50pf, all ports 10 50 ns v dd = 3.0v to 3.6v and 4.75v to 5.25v, 10% - 90% 2.7v ac general purpose io specifications parameter description min max unit notes trise0 rise time, strong mode, cload = 50pf, port 0 15 100 ns v dd = 2.4v to 3.0v, 10% - 90% trise1 rise time, strong mode, cload = 50pf, port 1 10 70 ns v dd = 2.4v to 3.0v, 10% - 90% tfall fall time, strong mode, cload = 50pf, all ports 10 70 ns v dd = 2.4v to 3.0v, 10% - 90% notes 2. if the device is in 3.3v mode of operation and the operating voltage drops below 3.02v, the device automatically reconfigures itself to work in 2.7v mode of operation. 3. if the device is in 2.7v mode of operation and the operating voltage drops below 2.45v, the scanning for capsense parameters shuts down until the voltage returns to over 2.45v. if the voltage continues to drop and goes below 2.4v, device goes into reset. 4. if the device is in 2.7v mode of operation and the operati ng voltage rises above 3.02v, the device automatically reconfigures itself to work in 3.3v mode of operation. 5. if the device is in 5.0v mode of operation and the operating voltage drops below 4.73v, the scanning for capsense parameters shuts down until the voltage returns to over 4.73v. 6. powering up in the 3.6v to 4.75v range is not supported by caps ense express. the device initializes to the 5.0v parameters bu t does not enable capsense scanning until the voltage goes above 4.73v. [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 14 of 18 ac i2c specifications parameter description standard mode fast mode unit notes min max min max f scli2c scl clock frequency 0 100 0 400 khz fast mode not supported for v dd < 3.0v t hdstai2c hold time (repeated) start condition. after this period, the first clock pulse is generated. 4.0?0.6? s t lowi2c low period of the scl clock 4.7 ? 1.3 ? s t highi2c high period of the scl clock 4.0 ? 0.6 ? s t sustai2c setup time for a repeated start condition 4.7?0.6? s t hddati2c data hold time 0 ? 0 ? s t sudati2c data setup time 250 ? 100 ? ns t sustoi2c setup time for stop condition 4.0 ? 0.6 ? s t bufi2c bus free time between a stop and start condition 4.7?1.3? s t spi2c pulse width of spikes suppressed by the input filter ??050ns figure 7. definition for timing for fast/standard mode on the i2c bus ~ ~ ~ ~ s sr t sustoi2c t sustai2c t hdstai2c t highi2c t lowi2c t sudati2c t hddati2c t f sda scl p s t bufi2c t r t f t r t spi2c t hdstai2c ~ ~ ~ ~ ~ ~ ~ ~ [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 15 of 18 ordering information ordering code package diagram package type operating temperature CY8C20110-ldx2i 001-09116 16 col [9] industrial CY8C20110-sx2i 51-85068 16 soic industrial thermal impedances by package package typical ja [7] 16 col [9] 46 c 16 soic 79.96 c solder reflow peak temperature package minimum peak temperature [8] maximum peak temperature 16 col [9] 240 c 260 c 16 soic 240 c 260 c notes 7. t j = t a + power x ja. 8. higher temperatures may be required based on the solder melting point. typical temperatures for solder are 220 5c with sn- pb or 245 5c with sn-ag-cu paste. refer to the solder manufacturer specifications. 9. earlier termed as qfn package. [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 16 of 18 package diagram figure 8. 16l chip on lead 3 x 3 mm package outline (sawn) - 001-09116 ? (pb-free) figure 9. 16-pin (150-mil) soic (51-85068) 001-09116 *d 51-85068-*b [+] feedback
CY8C20110 document number: 001-17345 rev. *e page 17 of 18 document history page document title: CY8C20110 capsense express?-10 configurable gpios with pwm control document number: 001-17345 rev. ecn. orig. of change submission date description of change ** 1341766 tup/sfv new data sheet *a 1494145 tup/aesa changed to final datasheet removed table - 2.7v dc general purpose io specifications - open drain with a pull up to 1.8v updated logic block diagram *b 1773608 tup/aesa removed table - 3v dc general purpose io specifications updated logic block diagram updated table - dc por and lvd specifications updated table - dc chip level specifications updated table - 5v and 3.3v dc general purpose io specifications updated table - 2.7v dc general purpose io specifications updated table - ac gpio specifications and split it into two tables for 5v/3.3v and 2.7v added section on capsense express tm software tool updated 16-qfn package diagram *c 2091026 dzu/mohd /aesa updated table-dc chip level specifications updated table-pin definitions 16 pin col updated table-pin definitions 16 pin soic updated table-5v and 3.3v dc g eneral purpose io specifications updated table - 2.7v dc general purpose io specifications changed definition for timing for fast/standard mode on the i2c bus diagram *d 2404731 dzu/mohd /pyrs updated logic block diagram added dc programming specifications table updated features added capsense electrical characteristics table *e 2549237 zsk/aesa 09/06/2008 changed data sheet title from ?CY8C20110 capsense express (tm)-10 configurable ios? to CY8C20110 capsense express?-10 configurable gpios with pwm control logic block diagram modified by adding pwm control block led dimming section added different sleep modes explained bi-directional sleep control pin defined dc chip level specifications tabl e updated with deep sleep mode param- eters table added on ?2.7v dc spec for i2c line with 1.8v external pull-up? updated package diagram 001-09116 [+] feedback
document number: 001-17345 rev. *e revised september 06, 2008 page 18 of 18 capsense?, capsense express?, psoc designer?, programmable s ystem-on-chip?, and psoc express? ar e trademarks and psoc? is a reg istered trademark of cypress semiconductor corp. all other trademarks or registered trademarks referenced herein are property of the respective corporations. purchase of i 2 c components from cypress or one of its sublicensed associated companies conveys a license under the philips i 2 c patent rights to use these components in an i 2 c system, provided that the system conforms to the i 2 c standard specification as defined by philips. all products and company names mentioned in this document may be the trademarks of their respective holders. CY8C20110 ? cypress semiconductor corporation, 2007-2008. the information contained herein is subject to change without notice. cypress s emiconductor corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a cypress product. nor does it convey or imply any license under patent or other rights. cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement wi th cypress. furthermore, cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. the inclusion of cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies cypress against all charges. any source code (software and/or firmware) is owned by cypress semiconductor corporation (cypress) and is protected by and subj ect to worldwide patent protection (united states and foreign), united states copyright laws and internatio nal treaty provisions. cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the cypress source code and derivative works for the sole purpose of creating custom software and or firmware in su pport of licensee product to be used only in conjunction with a cypress integrated circuit as specified in the applicable agreement. any reproduction, modification, translation, compilation, or repre sentation of this source code except as specified above is prohibited without the express written permission of cypress. disclaimer: cypress makes no warranty of any kind, express or implied, with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. cypress reserves the right to make changes without further notice to t he materials described herein. cypress does not assume any liability arising out of the application or use of any product or circuit described herein. cypress does not authori ze its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. the inclusion of cypress? prod uct in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies cypress against all charges. use may be limited by and subject to the applicable cypress software license agreement. sales, solutions, and legal information worldwide sales and design support cypress maintains a worldwide network of offices, solution center s, manufacturer?s representative s, and distributors. to find t he office closest to you, visit us at cypress.com/sales. products psoc psoc.cypress.com clocks & buffers clocks.cypress.com wireless wireless.cypress.com memories memory.cypress.com image sensors image.cypress.com psoc solutions general psoc.cypress.com/solutions low power/low voltage psoc.cypress.com/low-power precision analog psoc.cypress.com/precision-analog lcd drive psoc.cypress.com/lcd-drive can 2.0b psoc.cypress.com/can usb psoc.cypress.com/usb [+] feedback

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