CD54HCT138F Overview
CD54HC138, CD74HC138, CD54HCT138, CD74HCT138, CD54HC238, CD74HC238, CD54HCT238, CD74HCT238 SCHS147J – NOVEMBER 1998 – REVISED NOVEMBER 2021 CDx4HC138, CDx4HCT138, CDx4HC238, CDx4HCT238 High-Speed CMOS Logic 3- to 8-Line Decoder/Demultiplexer Inverting and Noninverting 1 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...
CD54HCT138F 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