74GTL1655A Datasheet, PDF (3/16 Pages) STMicroelectronics – 16 BIT LVTTL TO GTL/GTL + UNIVERSAL BUS TRANSCEIVERS WITH LIVE INSERTION

74GTL1655A
Table 3: Function Table (1)
OEAB
H
L
L
L
L
L
L
INPUTS
LEAB
X
H
H
L
L
L
L
CLK
X
X
X
H
L
OUTPUT
MODE
A
B
X
Z
Isolation
L
L
Transparent
H
H
Transparent
L
L
Registered
H
H
Registered
X
B0⁽²⁾
Previous State
X
B0⁽³⁾
Previous State
1) A to B data flow is shown. B to A flow is similar, but uses OEBA, LEBA and CLK
2) Output level before the indicated steady-state input conditions were established, provided that CLK was high before LEAB went low
3) Output level before the indicated steady-state input conditions were established
Table 4: Output Enable Truth Table
) _INPUTS
t(s OE
OEAB
OEBA
c _L
L
L
du L
L
H
ro ^L
H
L
L
H
H
P _H
X
X
lete ^{Table 5: B-Port Edge Rate Control (V}ERC^{) Truth Table}
Obso ^{LOGIC LEVEL}
- _H
Obsolete ^{Product(s) L}
INPUT V_ERC
NOMINAL VOLTAGE
V_CC
GND
OUTPUTS
A PORT
Active
Z
Active
Z
Z
B PORT
Active
Active
Z
Z
Z
OUTPUT B PORT EDGE RATE
Slow
Fast
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