SN54AHCT139, SN74AHCT139 DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS

SCLS267F - DECEMBER 1995 - REVISED SEPTEMBER 1997

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features

Inputs Are TTL-Voltage Compatible
EPIC^TM (Enhanced-Performance Implanted CMOS) Process
Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems
Incorporate Two Enable Inputs to Simplify Cascading and/or Data Reception
High Latch-Up Immunity Exceeds 250 mA Per JESD 17
ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Package Options Include Plastic Small-Outline (D), Shrink Small-Outline (DB), Thin Very Small-Outline (DGV), Thin Shrink Small-Outline (PW), and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

EPIC is a trademark of Texas Instruments Incorporated.

description

The 'AHCT139 are dual 2-line to 4-line decoders/demultiplexers designed for 4.5-V to 5.5-V V_CC operation. These devices are designed to be used in high-performance memory- decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When used with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

The active-low enable (G\) input can be used as a data line in demultiplexing applications. These decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its driving circuit.

The SN54AHCT139 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AHCT139 is characterized for operation from -40°C to 85°C.

Title: DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
Product Family: DEMULTIPLEXERS
Device Functionality: DECODER / DEMULTIPLEXER
Orderable Devices: SN74AHCT139D, SN74AHCT139DBLE, SN74AHCT139DGVR, SN74AHCT139DR, SN74AHCT139N, SN74AHCT139PWLE

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View more information about generic part numbers:SN74AHCT139

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