Datasheet

SN74FB2041A
7-BIT TTL/BTL TRANSCEIVER
SCBS172L – NOVEMBER 1991 – REVISED JUNE 2001
5–70
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description (continued)
Pins are allocated for the four-wire IEEE Std 1149.1 (JTAG) test bus, although currently there are no plans to
release a JTAG-featured version. TMS and TCK are not connected and TDI is shorted to TDO.
BIAS V
CC
establishes a voltage between 1.62 V and 2.1 V on the BTL outputs when V
CC
is not connected.
ORDERING INFORMATION
T
A
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
0°C to 70°C QFP – RC Tube SN74FB2041ARC FB2041A
†
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