Datasheet Summary
Data sheet acquired from Harris Semiconductor SCHS147A
CD74HC138, CD74HCT138, CD74HC238, CD74HCT238
High Speed CMOS Logic 3-to-8 Line Decoder/ Demultiplexer Inverting and Non-Inverting
October 1997
- Revised February 1999
Features
- Select One Of Eight Data Outputs Active Low for 138, Active High for 238
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- l/O Port or Memory Selector (CD74
- Three Enable Inputs to Simplify Cascading HC138
- Typical Propagation Delay of 13ns at VCC = 5V, , CL = 15pF, TA = 25oC .. CD74
- Fanout (Over Temperature Range) HCT13
- Standard Outputs
- -
- 10 LSTTL Loads 8,
- Bus Driver Outputs
- - . . . 15 LSTTL Loads CD74
- Wide Operating...