ꢀꢁ ꢂꢃ ꢄꢅ ꢆꢇ ꢈꢈ ꢃꢉ
ꢇ ꢈ ꢊꢅꢋ ꢆ ꢌ ꢍꢆ ꢅꢎ ꢀ ꢀ ꢏꢋ ꢆꢄ ꢐ
SCDS104C − APRIL 2000 − REVISED SEPTEMBER 2003
D
D
Member of the Texas Instruments
Widebus+ Family
5-Ω Switch Connection Between Two Ports
D
D
TTL-Compatible Input Levels
Flow-Through Architecture Optimizes PCB
Layout
description/ordering information
The SN74CBT32245 provides 32 bits of high-speed TTL-compatible bus switching. The low on-state resistance
of the switch allows connections to be made with minimal propagation delay.
The device is organized as four 8-bit bus switches, two 16-bit bus switches, or one 32-bit bus switch. When
output enable (OE) is low, the switch is on and port A is connected to port B. When OE is high, the switch is open
and the high-impedance state exists between the two ports.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
LFBGA − GKE
LFBGA − ZKE (Pb-free)
SN74CBT32245GKER
SN74CBT32245ZKER
−40°C to 85°C
Tape and reel
BV245
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
FUNCTION TABLE
(each 8-bit bus switch)
INPUT
FUNCTION
OE
L
A port = B port
Disconnect
H
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus+ is a trademark of Texas Instruments.
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Copyright 2003, Texas Instruments Incorporated
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