IDT74FCT157AT/CT/DT
FAST CMOS QUAD 2-INPUT MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
FAST CMOS
QUAD 2-INPUT
MULTIPLEXER
IDT74FCT157AT/CT/DT
FEATURES:
DESCRIPTION:
•
•
•
•
The FCT157T is a high-speed quad 2-input multiplexer built using an
advanced dual metal CMOS technology. Four bits of data from two sources
can be selected using the common select input. The four buffered outputs
present the selected data in the true (non-inverting) form.
The FCT157T has a common, active-low, enable input. When the
enable input is not active, all four outputs are held low. A common application
of FCT157T is to move data from two different groups of registers to a
common bus. Another application is as a function generator. The FCT157T
can generate any four of the 16 different functions of two variables with one
variable common.
•
•
•
•
A, C, and D grades
Low input and output leakage ≤1µA (max.)
CMOS power levels
True TTL input and output compatibility:
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
High Drive outputs (-15mA IOH, 48mA IOL)
Meets or exceeds JEDEC standard 18 specifications
Power off disable outputs permit "live insertion"
Available in SOIC and QSOP packages
FUNCTIONAL BLOCK DIAGRAM
S
E
Three other multiplexers
I1B I1D
ZB ZD
I0B I0D
I1A
ZA
I0A
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
JUNE 2006
1
© 2006 Integrated Device Technology, Inc.
DSC-5502/5
