General-Purpose Logics-HD74AC Series

1?뭥f?? Decoder/Demultiplexer

The MC74AC138/74ACT138 is a high−speed 1−of−8 decoder/demultiplexer. This device is ideally suited for high−speed bipolar memory chip select address decoding. The multiple input enables allow parallel expansion to a 1−of−24 decoder using just three MC74AC138/74ACT138 devices or a 1−of−32 decoder

1-of-8 Decoder/Demultiplexer

General Description The AC/ACT138 is a high-speed 1-of-8 decoder/demultiplexer. This device is ideally suited for high-speed bipolar memory chip select address decoding. The multiple input enables allow parallel expansion to a 1-of-24 decoder using just three AC/ACT138 devices or a 1-of-32 decode

3 TO 8 LINE DECODER (INVERTING)

DESCRIPTION The 74AC138 is an advanced high-speed CMOS 3 TO 8 LINE DECODER (INVERTING) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS tecnology. ■ HIGH SPEED: tPD = 4.5ns (TYP.) at VCC = 5V ■ LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C ■ HIGH NOISE IMMUNI

3 TO 8 LINE DECODER INVERTING

DESCRIPTION The 74AC138 is an advanced high-speed CMOS 3 TO 8 LINE DECODER (INVERTING) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS tecnology. ■ HIGH SPEED: tPD = 4.5ns (TYP.) at VCC = 5V ■ LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C ■ HIGH NOISE IMMUNI

1-of-8 Decoder/Demultiplexer

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