© 2005 Fairchild Semiconductor Corporation

DS500450

www.fairchildsemi.com

October 2000

Revised January 2005

FST34170

17-Bit to 34-Bit Multiplexer/Demultiplexer Bus Switch

General Description

The Fairchild Switch FST34170 is a 17-bit to 34-bit high-

speed CMOS TTL-compatible multiplexer/demultiplexer

bus switch. The low on resistance of the switch allows

inputs to be connected to outputs without adding propaga-

tion delay or generating additional ground bounce noise.

The device can be used in applications where two buses

need to be addressed simultaneously. The FST34170 is

both.

trol.

Features

■ Slower Output Enable times prevent signal disruption

■ 4

: switch connection between two ports

■ Minimal propagation delay through the switch

■ Zero bounce in flow-through mode

■ Control inputs compatible with TTL level

■ See Applications Note AN-5008 for details

Ordering Code:

Note 1: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Note 2: “_NL” indicates Pb-Free product (per JEDEC J-STD-020B). Device is available in Tape and Reel only.

UHC

¥ is a trademark of Fairchild Semiconductor Corporation.

Order Number

Package

Number

Package Description

FST34170MTD

(Note 1)

MTD56

56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide

FST34170MTDX_NL

(Note 2)

MTD56

Pb-Free 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,

6.1mm Wide