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MC54F138 Datasheet 1-of-8 Decoder/ Demultiplexer

Manufacturer: Motorola Semiconductor (now NXP Semiconductors)

Overview: .. MC54/74F138 1-OF-8 DECODER/ DEMULTIPLEXER The MC54/74F138 is a high speed 1-of-8 Decoder/Demultiplexer. This device is ideally suited for high speed bipolar memory chip select address decoding.

Key Features

  • three Enable inputs, two active LOW (E1, E2) and one active HIGH (E3). All outputs will be HIGH unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion of the device to a 1-of-32 (5 lines to 32 lines) decoder with just four F138s and one inverter. The F138 can be used as an 8-output demultiplexer by using one of the active LOW Enable inputs as the data input and the other Enable inputs as strobes. The Enable inputs which are not used must be permanen.

More Datasheets from Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
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MC54F125 (MC54F125 / MC54F126) 3-STATE QUAD BUFFERS
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MC54F14 SCHMITT TRIGGERS DUAL 4-INPUT NAND/HEX INVERTERS
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MC54F181 4-BIT ARITHMETIC LOGIC UNIT

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