SN74FB2032 Datasheet, PDF (3/10 Pages) Texas Instruments – 9-BIT TTL/BTL COMPETITION TRANSCEIVER

SN74FB2032
9-BIT TTL/BTL COMPETITION TRANSCEIVER
SCBS175H – NOVEMBER 1991 – REVISED SEPTEMBER 1999
Function Tables
TRANSCEIVER
INPUTS
OEA OEB OEB
FUNCTION
L
H
L
A data to B bus
H
L
X
H
X
H
B data to A bus
H
H
L A data to B bus, B data to A bus
L
L
X
L
X
H
Isolation
WIN
INPUTS
OEB OEB COMPETE
DATA
A1, A2†
WIN
H
H
X
X
L
H
L
H
X
L
H
L
L
A1 < A2
L
H
L
L
A2 ≤ A1
H
† _{A1 refers to the A data of Module 1 and A2 refers to}
the A data of Module 2. If LE = L, A = current A data.
If LE = H, A = the value of A8–A1 prior to the most
recent low-to-high transition of LE.
BP
INPUTS
OEB OEB WIN AP‡ ^BP
L
X
X
X
H
X
H
X
X
H
H
L
L
X
H
H
L
H
L
H
H
L
H
H
L
‡ _{If LE = L, AP = current AP data. If LE = H,}
AP = the level of AP prior to the most
recent low-to-high transition of LE.
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