IDT54FCT162374AT Просмотр технического описания (PDF) - Integrated Device Technology
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IDT54FCT162374AT Datasheet PDF : 8 Pages
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IDT54/74FCT16374T/AT/CT/ET, 162374T/AT/CT/ET
FAST CMOS 16-BIT REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
SWITCH POSITION
VIN
Pulse
Generator
V CC
7.0V
D.U.T.
RT
V OUT
50pF
CL
500Ω
500Ω
Test
Switch
Open Drain
Disable Low
Closed
Enable Low
All Other Tests
Open
DEFINITIONS:
2542 lnk 10
CL= Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
2542 drw 05
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
DATA
INPUT
tSU
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
tSU
ETC.
tH
tREM
tH
PROPAGATION DELAY
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
tPHL
OPPOSITE PHASE
INPUT TRANSITION
3V
1.5V
0V
LOW-HIGH-LOW
3V
PULSE
1.5V
0V
tW
1.5V
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
1.5V
3V
1.5V
0V
2542 drw 07
2542 drw 06
ENABLE AND DISABLE TIMES
3V
1.5V
0V
VOH
1.5V
VOL
3V
1.5V
0V
2542 drw 08
ENABLE
DISABLE
3V
CONTROL
INPUT
tPZL
1.5V
0V
tPLZ
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
tPZH
3.5V
1.5V
tPHZ
3.5V
0.3V VOL
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
1.5V
0V
0.3V VOH
0V
NOTES:
2542 drw 09
1. Diagram shown for input Control Enable-LOW and input Control Disable-
HIGH
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns
5.8
7
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