Home Switches & multiplexers Digital demultiplexers & decoders
Home
Switches & multiplexers
Digital demultiplexers & decoders

SN54HC138

ACTIVE

3-Line To 8-Line Decoders/Demultiplexers

Order now
Data sheet

SN54HC138

ACTIVE
Data sheet Order now

Product details

Technology family HC Number of channels 1 Operating temperature range (°C) -55 to 125 Rating Military Supply current (max) (µA) 160
Technology family HC Number of channels 1 Operating temperature range (°C) -55 to 125 Rating Military Supply current (max) (µA) 160
LCCC (FK) 20 79.0321 mm² (— mm × — mm) CDIP (J) 16 135.3552 mm² (— mm × — mm) CFP (W) 16 69.319 mm² (— mm × — mm)
  • Targeted Specifically for High-Speed Memory Decoders and Data-Transmission Systems
  • Wide Operating Voltage Range (2 V to 6 V)
  • Outputs Can Drive Up To 10 LSTTL Loads
  • Low Power Consumption, 80-µA Maximum ICC
  • Typical tpd = 15 ns
  • ±4-mA Output Drive at 5 V
  • Low Input Current of 1-µA Maximum
  • Active Low Outputs ( Selected Output is Low)
  • Incorporate Three Enable Inputs to Simplify Cascading or Data Reception
  • Targeted Specifically for High-Speed Memory Decoders and Data-Transmission Systems
  • Wide Operating Voltage Range (2 V to 6 V)
  • Outputs Can Drive Up To 10 LSTTL Loads
  • Low Power Consumption, 80-µA Maximum ICC
  • Typical tpd = 15 ns
  • ±4-mA Output Drive at 5 V
  • Low Input Current of 1-µA Maximum
  • Active Low Outputs ( Selected Output is Low)
  • Incorporate Three Enable Inputs to Simplify Cascading or Data Reception

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.
filter Find other Digital demultiplexers & decoders
Download

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
CD74ACT138 ACTIVE 3-Line to 8-Line Inverting Decoders/Demultiplexers Voltage range 4.5V to 5.5V, average propagation delay 8ns, average drive strength 24mA

Technical documentation

No results found. Please clear your search and try again.
View all 2
Top documentation Type Title Format options Date
* Data sheet SNx4HC138 3-Line To 8-Line Decoders/Demultiplexers datasheet (Rev. G) PDF | HTML Oct 8, 2021
* SMD SN54HC138 SMD 84062012A Jun 21, 2016

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​