Description
Data sheet acquired from Harris Semiconductor SCHS147I October 1997 - Revised August 2004 CD54/74HC138, CD54/74HCT138, CD54/74HC238, CD54/74HCT238 Hi.
CD74HCT138E
-55 to 125
16 Ld PDIP
The ’HC138, ’HC238, ’HCT138, and ’HCT238 are high-speed silicon-gate CMOS decoders well suited to memory address.
Features
* Select One Of Eight Data Outputs Active Low for 138, Active High for 238
* l/O Port or Memory Selector
* Three Enable Inputs to Simplify Cascading
* Typical CL = 15
Propagation Delay pF, TA = 25oC
of
13
ns
at
VCC
=
5
V,
* Fanout (Over Temperatu
