Datasheet Details
| Part number | CD74HC138 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 1.28 MB |
| Description | High-Speed CMOS Logic 3 to 8-Line Decoder/Demultiplexer Inverting/Noninverting |
| Datasheet |
 CD74HC138 Datasheet
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General Description
The CDx4HC(T)138 and '238 are three to eight decoders with one standard output strobe (G2) and two active low output strobes (G 1 and G 0).
When the outputs are gated by any of the strobe inputs, they are all forced into the high state.
Key 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 propagation delay of 13 ns at VCC = 5 V, CL = 15 pF, TA = 25°C.
- Fanout (over temperature range).
- Bus driver outputs: 15 LSTTL loads.
- Standard outputs: 10 LSTTL loads.
- Wide operating temp range: -55°C to 125°C.
- Balanced propagation delay and t.