74FCT3245QG8 IDT, 74FCT3245QG8 Datasheet - Page 5

• Manufacturer Part Number: 74FCT3245QG8
• Description: Bus Transceivers
• Manufacturer: IDT

Specifications of 74FCT3245QG8

• Rohs: yes
• Part # Aliases: IDT74FCT3245QG8

TEST CIRCUITS AND WAVEFORMS
IDT74FCT3245/A
3.3V CMOS OCTAL BIDIRECTIONAL TRANSCEIVER
ASYNCHRONOUS CONTROL
SYNCHRONOUS CONTROL
Generator
INPUT TRANSITION
INPUT TRANSITION
Pulse
OPPOSITE PHASE
CLOCK ENABLE
SAME PHASE
PRESET
PRESET
TIMING
V
CLEAR
CLEAR
OUTPUT
INPUT
IN
INPUT
DATA
ETC.
ETC.
Set-Up, Hold, and Release Times
Test Circuits for All Outputs
R
T
Propagation Delay
D.U.T.
V
t
PLH
t
CC
PLH
t
t
SU
SU
V
OUT
t
REM
C
t
t
t
50pF
H
PHL
PHL
L
t
H
500Ω
500Ω
3V
1.5V
0V
V
1.5V
V
3V
1.5V
0V
OH
OL
Open
GND
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
6v
5
SWITCH POSITION
DEFINITIONS:
C
R
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; Z
3. If Vcc is below 3V, input voltage swings should be adjusted not to exceed Vcc.
NORMALLY
NORMALLY
L
T
CONTROL
HIGH-LOW-HIGH
= Load capacitance: includes jig and probe capacitance.
= Termination resistance: should be equal to Z
LOW-HIGH-LOW
OUTPUT
OUTPUT
INPUT
HIGH
LOW
All Other Tests
Disable High
Disable Low
Enable High
Enable Low
Open Drain
PULSE
PULSE
Test
SWITCH
SWITCH
GND
ENABLE
6V
t
t
PZH
PZL
Enable and Disable Times
Pulse Width
1.5V
1.5V
3V
0V
INDUSTRIAL TEMPERATURE RANGE
t
PHZ
t
W
DISABLE
OUT
t
PLZ
O
of the Pulse Generator.
≤ 50Ω; t
0.3V
0.3V
Switch
GND
Open
6V
F
≤ 2.5ns; t
3V
1.5V
0V
3V
V
V
0V
OL
OH
1.5V
1.5V
R
≤ 2.5ns.