View IDT74FCT20807QI_1254029.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

IDT74FCT20807 2.5V CMOS 1-TO-10 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
2.5V CMOS 1-TO-10 CLOCK DRIVER
IDT74FCT20807
FEATURES:
* * * * * * * * * * *
DESCRIPTION:
High frequency > 150MHz Guaranteed low skew < 150ps (max.) between any two outputs Very low duty cycle distortion < 300ps High speed: propagation delay < 3ns Very low CMOS power levels TTL compatible inputs and outputs 1:10 fanout Maximum output rise and fall time < 1.25ns (max.) Low input capacitance: 3pF typical 2.5V supply voltage Available in SSOP and QSOP packages
The FCT20807 is a 2.5V compatible, high speed, low noise, 1:10 fanout, non-inverting clock buffer. The large fanout from a single input reduces loading on the preceding driver and provides an efficient clock distribution network. Providing output to output skew as low as 150ps, the FCT20807 is an ideal clock distribution device for synchronous systems. Multiple power and grounds reduce noise. Typical applications are clock and signal distribution.
FUNCTIONAL BLOCK DIAGRAM
O1
PIN CONFIGURATION
IN
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC O10 O9 GND O8 VCC O7 GND O6 O5
O2
GND O1
O3
VCC O2
O4
GND O3
O5 IN O6
VCC O4 GND
O7
SSOP/ QSOP TOP VIEW
O8
O9
O10
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c 2003 Integrated Device Technology, Inc.
FEBRUARY 2003
DSC - 6171/12
IDT74FCT20807 2.5V CMOS 1-TO-10 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) VTERM(4) TSTG IOUT Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Max -0.5 to +4.6 -0.5 to +5.5 -0.5 to VCC+0.5 -65 to +150 -60 to +60 Unit V V V C mA
CAPACITANCE (TA = +25OC, f = 1.0MHz)
Symbol CIN Parameter(1) Input Capacitance Conditions VIN = 0V Typ. 3 Max. 4 Unit pF
NOTE: 1. This parameter is measured at characterization but not tested.
NOTES: 1. 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 operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. VCC terminals. 3. Input terminals. 4. Outputs and I/O terminals.
PIN DESCRIPTION
Pin Names IN Ox Clock Inputs Clock Outputs Description
POWER SUPPLY CHARACTERISTICS
Symbol ICCL ICCH ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Power Supply Current per Input HIGH Dynamic Power Supply Current per Output(3) Total Power Supply Current(4) Test Conditions(1) VCC = Max. VIN = GND or VCC VCC = Max. VIN = VCC -0.6V VCC = 2.7V 15 pF VCC = Max. CL = 12pF All outputs toggling fi = 150MHz
NOTES: 1. 2. 3. 4. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. Typical values are at VCC = 2.5V, +25C ambient. This parameter is not directly testable, but is derived for use in Total Power Supply calculations. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fi) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ICC = Power Supply Current for a TTL High Input (VIN = VCC -0.6V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fi = Input Frequency
Min. -- -- 150 MHz VIN = VCC VIN = GND VIN = VCC -0.6V VIN = GND -- -- --
Typ.(2) 0.1 45 40 65 75
Max. 20 300 -- 90
Unit A A A /MHz mA
IC
100
2
IDT74FCT20807 2.5V CMOS 1-TO-10 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified Industrial: TA = -40C to +85C, VCC = 2.5V 0.2V
Symbol VIH VIL IIH IIL VIK IODH IODL VOH VOL IOS Parameter Input HIGH Level Input LOW Level Input HIGH Current (Input pins) Input LOW Current (Input pins) Clamp Diode Voltage Output HIGH Current Output LOW Current Output HIGH Voltage Output LOW Voltage Short Circuit Current(4) VCC = Max., VI = VCC VCC = Max., VI = GND VCC = Min., IIN = -18mA VCC = 2.5V, VIN = VIH or VIL, VCC = Min. VIN = VIH or VIL VCC = Min. VIN = VIH or VIL VCC = Max., VO = GND(3) VO = 1.25V(3) IOH = -1mA IOH = -8mA IOL = 1mA IOL = 8mA VCC = 2.5V, VIN = VIH or VIL, VO = 1.25V(3) Test Conditions(1) Min. 1.7 -- -- -- -- -25 20 VCC-0.2 1.8(5) -- -- -25 Typ.(2) -- -- -- -- -0.7 -45 55 -- -- -- -- -60 Max. -- 0.7 1 1 -1 -100 120 -- -- 0.4 0.6 -135 mA V Unit V V mA mA V mA mA V
NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 2.5V, +25C ambient. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not tested. 5. VOH = Vcc - 0.6V at rated current.
3
IDT74FCT20807 2.5V CMOS 1-TO-10 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE(1,2)
Following Conditions Apply Unless Otherwise Specified Industrial: TA = -40C to +85C, VCC = 2.5V 0.2V
Symbol tPLH tPHL tR tF tSK(O) tSK(P) tSK(PP) Parameter Propagation Delay Output Rise Time Output Fall Time Same Device Output Pin-to-Pin Skew(4) Pulse Skew(5) Part-to-Part Skew(6) Conditions(3) CL = 22pF 100 MHz
Min. -- -- -- -- -- --
Typ. 3 1 1 100 250 400
Max. 3.5 1.25 1.25 150 300 600
Unit ns ns ns ps ps ps
Symbol tPLH tPHL tR tF tSK(O) tSK(P) tSK(PP)
Parameter Propagation Delay Output Rise Time Output Fall Time Same Device Output Pin-to-Pin Skew(4) Pulse Skew(5) Part-to-Part Skew(6)
Conditions(3,7) CL = 12pF 150 MHz
Min. -- -- -- -- -- --
Typ. 2.4 1 1 100 250 400
Max. 2.7 1.2 1.2 150 300 600
Unit ns ns ns ps ps ps
NOTES: 1. tPLH and tPHL are production tested. All other parameters guaranteed but not production tested. 2. Propagation delay range indicated by Min. and Max. limit is due to VCC, operating temperature and process parameters. These propagation delay limits do not imply skew. 3. See test circuits and waveforms. 4. Skew measured between all outputs under identical transitions and load conditions. 5. Skew measured is difference between propagation delay times tPHL and tPLH of same output under identical load conditions. 6. Part to part skew for all outputs given identical transitions and load conditions at identical VCC levels and temperature. 7. Airflow of 1m/s is recommended for frequencies above 133MHz.
4
IDT74FCT20807 2.5V CMOS 1-TO-10 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
VCC INPUT VIN Pulse Generator D.U.T. CL OUTPUT 2 tPLH2 tPHL2 tSK(o) = |tPLH2 - tPLH1| or |tPHL2 - tPHL1| VOUT OUTPUT 1 tSK(o) tSK(o) 2.5V 1.25V 0V VOH 1.25V VOL VOH 1.25V VOL
tPLH1
tPHL1
CL = Load Capacitance: Includes Jig and Probe Capacitance
Output Skew - tSK(O)
2.5V 1.25V INPUT tPLH tPHL VOH 1.7V OUTPUT tR tF 0.7V 1.25V VOL DEVICE 2 OUTPUT tPLH2 tPHL2 DEVICE 1 OUTPUT tSK(t) tSK(t) 0V INPUT tPLH1 tPHL1
2.5V 1.25V 0V VOH 1.25V VOL VOH 1.25V VOL
tSK(t) = |tPLH2 - tPLH1| or |tPHL2 - tPHL1|
Propagation Delay
Part-to-Part Skew - tSK(PP)
NOTE: Device 1 and device 2 are same package type and speed grade.
TEST CONDITIONS
INPUT tPLH tPHL 2.5V 1.25V 0V VOH 1.25V VOL
Symbol CL RT tR / tF
VCC = 2.5V 0.2V 22(1) 12(2) ZOUT of pulse generator 1.25(1) 1.2(2)
Unit pF ns
OUTPUT tSK(p) = |tPHL - tPLH|
Pulse Skew - tSK(P)
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. tR / tF = Rise/Fall time of the input stimulus from the Pulse Generator. NOTES: 1. Test conditions at 100MHz. 2. Test conditions at 150MHz.
5
IDT74FCT20807 2.5V CMOS 1-TO-10 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT74FCT XXXX Device Type X Package X Temp. Range
I
Industrial (-40C to +85C)
PY Q
Shrink Small Outline IC Quarter-size Small Outline IC
20807
1-to-10 2.5V Clock Driver
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
for Tech Support: logichelp@idt.com (408) 654-6459
6

▲Up To Search▲

Price & Availability of IDT74FCT20807QI

	To Download IDT74FCT20807QI Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .