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HANBit
HMS25632J2
SRAM MODULE 1Mbyte (256K x 32-Bit), 5V, 68-Pin JLCC Design Part No. HMS25632J2
GENERAL DESCRIPTION
The HMS25632J2 is a high-speed static random access memory (SRAM) module containing 262,144 words organized in a x32-bit configuration. The module consists of two 256K x 16 SRAMs mounted on a 68-pin, double-sided, FR4-printed circuit board. The HMS25632J2 uses 31 common input and output lines and has an output enable pin which operates faster than address access time at read cycle. Also it allows that lower and upper byte access by data byte control (/BS0~/BS3). Output enable (/OE) and write enable(/WE) can set the memory input and output. Data is written into the SRAM memory when write enable (/WE) and chip enable (/CE) inputs are both LOW. Reading is accomplished when /WE remains HIGH and /CE and output enable (/OE) are LOW. For reliability, this SRAM module is designed as multiple power and ground pin. All module components may be powered from a single +5V DC power supply and all inputs and outputs are fully TTL-compatible.
FEATURES
w Access times : 10, 12 and 15, 55ns w Low Power Dissipation w High-density 1Mbyte design w High-reliability, high-speed design w Single + 5V 0.5V power supply wEasy memory expansion /CE and /OE functions w All inputs and outputs are TTL-compatible w Industry-standard pinout w FR4-PCB design w Low profile 68-pin JLCC
PIN ASSIGNMENT
DQ16 NC /A17 /BS3 /BS2 /BS1 /BS0 /CE1 Vcc NC /CE0 OE /WE A16 A15 A14 DQ15 DQ17 DQ18 DQ19 Vss DQ20 DQ21 DQ22 DQ23 Vcc DQ24 DQ25 DQ26 DQ27 Vss DQ28 DQ29 DQ30
10 9 8 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
OPTIONS
w Timing 10ns access 12ns access 15ns access w Packages 68-pin JLCC
MARKING
-10 -12 -15
DQ14 DQ13 DQ12 Vss DQ11 DQ10 DQ9 DQ8 Vcc DQ7 DQ6 DQ5 DQ4 Vss DQ3 DQ2 DQ1
J
PIN FUNCTION
PIN NAME A0-A17 DQ0-31 /WE /CE /OE
URL: www.hbe.co.kr Rev. 1.0 (September / 2002)
PIN FUNCTION Address Inputs Data Inputs Write Enable Chip Enable Output Enable
1
DQ31 A6 A5 A4 A3 A2 A1 A0 Vcc A13 A12 A11 A10 A9 A8 A7 DQ0
JLCC TOP VIEW
PIN NAME /BS0 ~ /BS3 Vcc Vss N.C
PIN FUNCTION Byte Controls Power(+5.0V) Ground No Connection
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FUNCTIONAL BLOCK DIAGRAM
HMS25632J2
DQ0 - DQ31 A0 - A17 /WE /OE /BS0 /BS1 /CE0
32 18 A0-17 /WE /OE /LB /UB /CE DQ 0-15
U1
A0-17 /WE /OE
/BS2 /BS3
DQ 16-31
U2
/LB /UB /CE
/CE1
ABSOLUTE MAXIMUM RATINGS
PARAMETER Voltage on Any Pin Relative to Vss Voltage on Vcc Supply Relative to Vss Power Dissipation Storage Temperature Operating Temperature Commercial Industrial SYMBOL VIN,OUT VCC PD TSTG TA TA RATING -0.5V to +7.0V -0.5V to +7.0V 2W oC to +150oC -65 0oC to +70oC -40 C to +85 C
O O
w Stresses greater than those listed under " Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operating section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
URL: www.hbe.co.kr Rev. 1.0 (September / 2002)
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RECOMMENDED DC OPERATING CONDITIONS
PARAMETER Supply Voltage Ground Input High Voltage Input Low Voltage * SYMBOL VCC VSS VIH VIL ( TA=0 to 70 o C ) MIN 4.5V 0 2.2 -0.5* TYP. 5.0V 0 -
HMS25632J2
MAX 5.5V 0 Vcc+0.5V** 0.8V
VIL(Min.) = -2.0V (Pulse Width 10ns) for I 20 mA
** VIH(Min.) = Vcc+2.0V (Pulse Width 8ns) for I 20 mA
DC AND OPERATING CHARACTERISTICS (1)
(0oC TA 70 oC ; Vcc = 5.0V 10%, Unless otherwise specified) PARAMETER Input Leakage Current Output Leakage Current Output High Voltage Output Low Voltage * Vcc=5.0V5%, Temp=25 oC TEST CONDITIONS VIN = Vss to Vcc /CE=VIH or /OE =VIH or /WE=VIL VOUT=Vss to VCC IOH = -4.0mA IOL = 8.0mA SYMBOL ILI IL0 VOH VOL MIN -4 -4 2.4 3.95 MAX 4 4 UNITS A A V V
DC AND OPERATING CHARACTERISTICS (2)
DESCRIPTION TEST CONDITIONS Min. Cycle, 100% Duty /CE=VIL, VIN=VIH or VIL, IOUT=0mA Min. Cycle, /CE=VIH f=0MHZ, /CEVCC-0.2V, VIN VCC-0.2V or VIN0.2V lSB lSB1 100 20 100 20 100 20 mA mA lCC 520 510 500 mA SYMBOL MAX -10 -12 -15 UNIT
Power Supply Current: Operating Power Supply Current: Standby
CAPACITANCE
DESCRIPTION Input /Output Capacitance Input Capacitance TEST CONDITIONS VI/O=0V VIN=0V SYMBOL CI/O CIN MAX 16 14 UNIT pF pF
* NOTE : Capacitance is sampled and not 100% tested
URL: www.hbe.co.kr Rev. 1.0 (September / 2002)
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AC CHARACTERISTICS (0oC TA 70 oC ; Vcc = 5.0V 10%, unless otherwise specified)
PARAMETER Input Pulse Level Input Rise and Fall Time Input and Output Timing Reference Levels Output Load VALUE 0 to 3V 3ns 1.5V
HMS25632J2
See below
TEST CONDITIONS
Output Load (A) VL=1.5V 50 DOUT Z0=50 DOUT 30pF 255
Output Load (B) for tHZ, tLZ, tWHZ, tOW, tOLZ & tOHZ +5.0V 480 5pF*
READ CYCLE
-10 PARAMETER Read Cycle Time Address Access Time Chip Select to Output Output Enable to Valid Output /BS0 ~ /BS3 Access Time Chip Enable to Low-Z Output Output Enable to Low-Z Output /BS0 ~ /BS3 Enable to Low-Z Output Chip Disable to High-Z Output Output Disable to High-Z Output /BS0 ~ /BS3 Disable to High-Z Output Output Hold from address Change SYMBOL MIN tRC tAA tCO tOE tBA tLZ tOLZ tBHZ tHZ tOHZ tBHZ tOH 10 3 0 0 0 0 0 3 MAX 10 10 5 5 5 5 5 MIN 12 3 0 0 0 0 0 3 MAX 12 12 6 6 6 6 6 MIN 15 3 0 0 0 0 0 3 MAX 15 15 7 7 7 7 7 Ns Ns ns ns ns ns ns ns ns ns ns -12 -15 UNIT
URL: www.hbe.co.kr Rev. 1.0 (September / 2002)
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WRITE CYCLE
PARAMETER Write Cycle Time Chip Select to End of Write Address Set-up Time Address Valid to End of Write Write Pulse Width (/OE High) Write Pulse Width (/OE Low) Write Recovery Time Write to Output High-Z Data to Write Time Overlap Data Hold from Write Time End of Write to Output Low-Z SYMBOL tWC tCW tAS tAW tWP tWP1 tWR tWHZ tDW tDH tOW -10 MIN 10 7 0 7 7 10 0 0 5 0 3 MAX 5 MIN 12 8 0 8 8 12 0 0 6 0 3 -12 MAX 6 -
HMS25632J2
-15 MIN 15 10 0 10 10 15 0 0 7 0 3 MAX 7 -
UNIT ns ns ns ns ns ns ns ns ns ns ns
TIMING DIAGRAMS
Please refer to timing diagram chart.
FUNCTIONAL DESCRIPTION
/CE H L L L /WE X* H H L /OE X H L X MODE Not Select Output Disable Read Write I/O PIN High-Z High-Z DOUT DIN SUPPLY CURRENT I SB, I SB1 ICC ICC ICC
Note: X means Don't Care
URL: www.hbe.co.kr Rev. 1.0 (September / 2002)
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PACKAGING DIMENSIONS
4.300.20mm
HMS25632J2
24.940.20mm
0.460.20mm
23.670.20mm
1.2780.20mm
ORDERING INFORMATION
Part Number Density Org. Package Component Number 2EA 2EA 2EA 2EA Vcc Access Time
HMS25632J2-10 HMS25632J2-12 HMS25632J2-15 HMS25632J2-55
1MByte 1MByte 1MByte 1MByte
256KX 32bit 256KX 32bit 256KX 32bit 256KX 32bit
68 Pin-JLCC 68 Pin-JLCC 68 Pin-JLCC 68 Pin-JLCC
5V 5V 5V 5V
10ns 12ns 15ns 55ns
URL: www.hbe.co.kr Rev. 1.0 (September / 2002)
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