Product Summary
The SN74HCT157DR data selector/multiplexer contains inverters and drivers to supply full data selection to the four output gates. A separate strobe (G) input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs.
Parametrics
SN74HCT157DR absolute maximum ratings: (1)Supply voltage range, VCC: -0.5 V to 7 V; (2)Input clamp current, IIK (VI < 0 or VI > VCC): ±20 mA; (3)Output clamp current, IOK (VO < 0 or VO > VCC): ±20 mA; (4)Continuous output current, IO (VO = 0 to VCC): ±35 mA; (5)Continuous current through VCC or GND: ±70 mA; (6)Storage temperature range, Tstg: -65°C to 150°C.
Features
SN74HCT157DR features: (1)Operating Voltage Range of 4.5 V to 5.5 V; (2)High-Current Outputs Drive Up To 15 LSTTL Loads; (3)Typical tpd = 15 ns; (4)Low Power Consumption, 80-μA Max ICC; (5)±6-mA Output Drive at 5 V; (6)Low Input Current of 1 μA Max; (7)Inputs Are TTL-Voltage Compatible; (8)Buffered Inputs and Outputs.
Diagrams

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![]() SN74HCT157DR |
![]() Texas Instruments |
![]() Encoders, Decoders, Multiplexers & Demultiplexers Quad 2-1-Line Data Selectors/Mltplxrs |
![]() Data Sheet |
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![]() SN74HCT157DRE4 |
![]() Texas Instruments |
![]() Encoders, Decoders, Multiplexers & Demultiplexers Quad 2-1-Line Data Selectors/Mltplxrs |
![]() Data Sheet |
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![]() SN74HCT157DRG4 |
![]() Texas Instruments |
![]() Encoders, Decoders, Multiplexers & Demultiplexers Quad 2Ln To 1Ln Data Selector Multiplexer |
![]() Data Sheet |
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