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Product Detailed Parameters
- Description：IC MULTIPLEXER 2 X 4:1 16SO
- Series：74HC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Multiplexer
- Circuit：2 x 4:1
- Independent Circuits：1
- Current - Output High, Low：7.8mA, 7.8mA
- Voltage Supply Source：Single Supply
- Voltage - Supply：2V ~ 6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The SN74HC253NSR is a dual 4-to-1-line data selector/multiplexer with 3-state outputs from Texas Instruments. It operates within a wide voltage range of 2 V to 6 V and features propagation delays of 38 ns. The device supports high-current inverting outputs capable of driving up to 15 LSTTL loads. It is housed in a 16-SOIC narrow package, suitable for surface mount installation, and functions reliably between -40°C and +125°C.
Feature Summary
- Dual 4-to-1 multiplexing architecture with independent selection controls
- High-speed silicon-gate CMOS technology for efficient data routing
- 3-state output capability enabling bus-oriented systems
Applications
- Multiplexing and data routing applications
- Bus-oriented systems requiring 3-state control
- General-purpose digital logic signal switching
Procurement Notes
Verify the specific suffix 'SR' indicates tape-and-reel packaging when ordering. Confirm the 16-SOIC narrow package dimensions match your PCB footprint requirements. Ensure the operating voltage range of 2 V to 6 V aligns with your system power supply specifications before finalizing procurement.
Selection Notes
Select this component for applications requiring dual 4-to-1 multiplexing with high-speed performance. The HC series offers compatibility with standard CMOS logic levels. Consider the 3-state outputs if bus isolation is required. Verify that the 16-pin SOIC package fits your assembly constraints and thermal management needs.
Part Context
This part belongs to the 74HC family of high-speed CMOS logic devices. It serves as a functional equivalent to the 'HC153 but includes 3-state outputs for enhanced bus control. The SN74HC253NSR variant specifically denotes the tape-and-reel packaging format, distinguishing it from tube-packaged versions like the SN74HC253N.
FAQ
What is the maximum current drive capability of the outputs?
The high-current inverting outputs can drive up to 15 LSTTL loads.
Does this device support bus-oriented applications?
Yes, the 3-state outputs allow the device to be used effectively in bus-oriented systems.
