FST16292 Datasheet, PDF (1/5 Pages) Fairchild Semiconductor – 12-Bit to 24-Bit Multiplexer/Demultiplexer Bus Switch

July 1997
Revised December 1999
FST16292
12-Bit to 24-Bit Multiplexer/Demultiplexer Bus Switch
General Description
The Fairchild Switch FST16292 provides twelve 2:1 high-
speed CMOS TTL-compatible multiplexer/demultiplexer
bus switches. 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 select pin connects the A Port to the selected B Port
output. The A₂ Ports are not externally connected, thus
have a 500Ω pull-down resistor to ground.
Features
s 4Ω switch connection between two ports.
s Minimal propagation delay through the switch.
s Low l_CC.
s Zero bounce in flow-through mode.
s Control inputs compatible with TTL level.
s Internal 500Ω pull-down resistor on A₂ port.
Ordering Code:
Order Number
FST16292MEA
FST16292MTD
Package Number
Package Description
MS56A
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Diagram
Connection Diagram
Pin Descriptions
Pin Name
SO
A₁
B₁, B₂
Description
Data-select input
Bus A
Bus B
Truth Table
S0 A₁ A₂
L
B₁
B₂
H
B₂
B₁
Function
A₁ = B₁, A₂ = B₂
A₁ = B₂, A₂ = B₁
© 1999 Fairchild Semiconductor Corporation DS500104
www.fairchildsemi.com