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SN54HCT139, SN74HCT139 DUAL 2ĆLINE TO 4ĆLINE DECODERS/DEMULTIPLEXERS
D Operating Voltage Range of 4.5 V to 5.5 V D Outputs Can Drive Up To 10 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 10 ns D ±4-mA Output Drive at 5 V D Low Input Current of 1 µA Max D Inputs Are TTL-Voltage Compatible D Designed Specifically for High-Speed
Memory Decoders and Data-Transmission Systems
D Incorporate Two Enable Inputs to Simplify
Cascading and/or Data Reception
description/ordering information
The ’HCT139 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding.