NC7SB3257 Datasheet, PDF (1/7 Pages) Fairchild Semiconductor – TinyLogic. UHS Single 2-to-1 Multiplexer/Demultiplexer Bus Switch

January 2000
Revised June 2000
NC7SB3257
TinyLogic UHS Single 2-to-1
Multiplexer/Demultiplexer Bus Switch
General Description
The NC7SB3257 is a high performance, 2-to-1 NMOS
passgate multiplexer/demultiplexer from Fairchild’s Ultra
High Speed Series of TinyLogic. The device is fabricated
with advanced sub-micron CMOS technology to achieve
high speed enable and disable times and low on resis-
tance. The device is specified to operate over the 4.0 to
5.5V V_CC operating range. The control input tolerates volt-
ages up to 5.5V independent of the V_CC operating range.
Features
s Space saving SC70 6-lead surface mount package
s Typical 3Ω switch resistance @ 5.0V V_CC
s Minimal propagation delay through the switch
s Power down high impedance control input
s Zero bounce in flow through mode
s TTL compatible control input
s Overvoltage tolerance of control input to 7.0V
s Break before make enable circuitry
Ordering Code:
Order
Number
NC7SB3257P6X
Package
Number
MAA06A
Product Code
Top Mark
Package Description
B7B
6-Lead SC70, EIAJ SC88, 1.25mm Wide
Supplied As
3k Units on Tape and Reel
Logic Symbol
Connection Diagram
Pin Descriptions
Pin Names
A, B₀, B₁
SEL
Description
Data Ports
Control Input
Function Table
Input (SEL)
L
H
H = HIGH Logic Level
L = LOW Logic Level
Function
B₀ Connected to A
B₁ Connected to A
(Top View)
Pin One Orientation Diagram
AAA = Product Code Top Mark - see ordering code
Note: Orientation of Top Mark determines Pin One location. Read the top
product code mark left to right, Pin One is the lower left pin (see diagram).
TinyLogic is a trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation DS500325
www.fairchildsemi.com