SN54HC138 Series

3-Line To 8-Line Decoders/Demultiplexers

Catalog

3-Line To 8-Line Decoders/Demultiplexers

Part	Mounting Type	Independent Circuits	Voltage Supply Source	Operating Temperature [Min]	Operating Temperature [Max]	Circuit	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Supplier Device Package	Package / Case
Texas Instruments 8406201FA	Surface Mount	1	Single Supply	-55 °C	125 °C	1 x 3:8	2 V	6 V	16-CFlatPack	Decoder/Demultiplexer	5.2 mA	5.2 mA
Texas Instruments JM38510/65802B2A	Surface Mount	1	Single Supply	-55 °C	125 °C	1 x 3:8	2 V	6 V	20-CLCC	Decoder/Demultiplexer	5.2 mA	5.2 mA	20-LCCC (8.89x8.89)
Texas Instruments SNJ54HC138J	Through Hole	1	Single Supply	-55 °C	125 °C	1 x 3:8	2 V	6 V	16-CDIP	Decoder/Demultiplexer	5.2 mA	5.2 mA	16-CDIP	0.3 in 7.62 mm
Texas Instruments SNJ54HC138FK	Surface Mount	1	Single Supply	-55 °C	125 °C	1 x 3:8	2 V	6 V	20-CLCC	Decoder/Demultiplexer	5.2 mA	5.2 mA	20-LCCC (8.89x8.89)

Catalog

3-Line To 8-Line Decoders/Demultiplexers

Key Features

• Targeted Specifically for High-Speed Memory Decoders and Data-Transmission SystemsWide Operating Voltage Range (2 V to 6 V)Outputs Can Drive Up To 10 LSTTL LoadsLow Power Consumption, 80-µA Maximum ICCTypical tpd= 15 ns±4-mA Output Drive at 5 VLow Input Current of 1-µA MaximumActive Low Outputs ( Selected Output is Low)Incorporate Three Enable Inputs to Simplify Cascading or Data ReceptionTargeted Specifically for High-Speed Memory Decoders and Data-Transmission SystemsWide Operating Voltage Range (2 V to 6 V)Outputs Can Drive Up To 10 LSTTL LoadsLow Power Consumption, 80-µA Maximum ICCTypical tpd= 15 ns±4-mA Output Drive at 5 VLow Input Current of 1-µA MaximumActive Low Outputs ( Selected Output is Low)Incorporate Three Enable Inputs to Simplify Cascading or Data Reception

Description

The SNx4HC138 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 employed with high-speed memories using 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 SNx4HC138 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 employed with high-speed memories using 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.