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IDT74FCT245 Datasheet(PDF) 6 Page - Integrated Device Technology

No. de Pieza. IDT74FCT245
Descripción  FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
Descarga  7 Pages
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Fabricante  IDT [Integrated Device Technology]
Página de inicio  http://www.idt.com
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IDT74FCT245 Datasheet(HTML) 6 Page - Integrated Device Technology

   
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IDT54/74FCT245/A/C, IDT54/74FCT640/A/C, IDT54/74FCT645/A/C
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
ENABLE AND DISABLE TIMES
PROPAGATION DELAY
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
Pulse
Generator
DATA
INPUT
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
t SU
t H
t REM
H
t SU
R T
D.U.T.
VCC
VIN
C L
V OUT
50pF
500
500
7.0V
SAME PHASE
INPUT TRANSITION
3V
1.5V
0V
1.5V
VOH
VOL
tPLH
t PHL
OUTPUT
OPPOSITE PHASE
INPUT TRANSITION
CONTROL
INPUT
3V
1.5V
0V
3.5V
0V
OUTPUT
NORMALLY
LOW
OUTPUT
NORMALLY
HIGH
SWITCH
CLOSED
SWITCH
OPEN
V OL
V OH
3V
1.5V
0V
t PLH
tPHL
0.3V
0.3V
tPLZ
tPZL
tPZH
tPHZ
3.5V
0V
1.5V
1.5V
ENABLE
DISABLE
HIGH-LOW-HIGH
PULSE
LOW-HIGH-LOW
PULSE
t W
1.5V
1.5V
t
NOTES
2534 drw 04
1. Diagram shown for input Control Enable-LOW and input Control
Disable-HIGH.
2. Pulse Generator for All Pulses: Rate
≤ 1.0 MHz; ZO ≤ 50Ω; tF ≤ 2.5ns;
tR
≤ 2.5ns.
SWITCH POSITION
Test
Switch
Open Drain
Disable Low
Closed
Enable Low
All Other Tests
Open
DEFINITIONS:
2534 tbl 08
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.


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