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Product Detailed Parameters
- Description：IC MULTIPLEXER 4 X 2:1 16SOIC
- Series：74HCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：Multiplexer
- Circuit：4 x 2:1
- Independent Circuits：1
- Current - Output High, Low：6mA, 6mA
- Voltage Supply Source：Single Supply
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The SN74HCT157DRE4 is a quadruple 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-voltage compatible buffered inputs and outputs. The device provides high-current outputs capable of driving up to 15 LSTTL loads, with typical propagation delays of 15 ns at 5.5 V. It includes a separate strobe input for controlling data selection across four independent channels.
Feature Summary
- Contains inverters and drivers to supply full data selection to four output gates
- Features TTL-voltage compatible buffered inputs and outputs
- Includes a separate strobe (G) input for controlling data routing
Applications
- Data routing in digital logic circuits
- Signal selection between two sources
- Multiplexing applications requiring TTL compatibility
Procurement Notes
Verify the specific ordering suffix 'E4' against current Texas Instruments documentation to confirm environmental compliance status and manufacturing lifecycle stage. Confirm package type and pinout alignment with design requirements before procurement.
Selection Notes
Select this component when a quadruple multiplexer with TTL-compatible inputs is required. Ensure the operating environment stays within the specified temperature range and voltage limits. Verify that the high-current output drive capability meets the load requirements of the connected circuitry.
Part Context
This part belongs to the HCT logic family, designed for compatibility with TTL systems while utilizing CMOS technology. It offers low power consumption compared to standard TTL devices. The device is available in various packages, including SOIC and PDIP, catering to different mounting and integration needs.
Replacement Considerations
SN74HCT157DR
FAQ
What is the function of the G input?
The G input serves as a strobe control. When active, it enables or disables the data selection process for all four channels simultaneously.
How does the device handle input voltage levels?
The inputs are TTL-voltage compatible, allowing direct interfacing with TTL logic families without additional level shifting components.
