Datasheet

SN74FB2040
8-BIT TTL/BTL TRANSCEIVER
SCBS173M – NOVEMBER 1991 – REVISED JUNE 2001
5–64
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ORDERING INFORMATION
T
A
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
0°C to 70°C QFP – RC Tube SN74FB2040RC FB2040
†
Package drawings, standard packing quantities, thermal data, symbolization, and
PCB design guidelines are available at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
OEB OEB OEA
FUNCTION
L X L
X HL
Isolation
L X H
X HH
B data to AO bus
H L L AI data to B bus
H L H AI data to B bus, B data to AO bus
functional block diagram
To Seven Other Channels
AI1
OEB
OEB
OEA
46
45
47
51
AO1
50
B1
40