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Product Detailed Parameters
- Description：AUTOMOTIVE QUADRUPLE 2-LINE TO 1
- Series：74LVC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：Data Selector/Multiplexer
- Circuit：4 x 2:1
- Independent Circuits：1
- Current - Output High, Low：24mA, 24mA
- Voltage Supply Source：Single Supply
- Voltage - Supply：2V ~ 3.6V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The SN74LVC257APWRQ1 is an automotive-grade quadruple 2-line to 1-line data selector/multiplexer with 3-state outputs. It operates from a supply voltage of 2V to 3.6V and features inputs that accept voltages up to 5.5V, enabling translation in mixed-voltage systems. The device provides a maximum propagation delay of 4.6ns at 3.3V. ESD protection exceeds 2000V per MIL-STD-883 method 3015. It is housed in a 16-pin TSSOP package.
Feature Summary
- Qualified for automotive applications
- High electrostatic discharge protection exceeding 2000V per MIL-STD-883 method 3015
- Inputs accept voltages up to 5.5V for mixed-system compatibility
- 3-state outputs prevent loading of data lines when disabled
Applications
- I/O expanders
- Motor drivers
- Server infrastructure
- Network switches
- Telecommunications infrastructure
Procurement Notes
Verify the specific suffix 'PW' corresponds to the TSSOP-16 package required for your design. Confirm the 'Q1' designation ensures compliance with automotive application standards. Check the latest Package Information Addendum for current moisture sensitivity levels and reflow temperature profiles before ordering.
Selection Notes
Select this component when designing bus-organized systems requiring signal multiplexing from 4-bit data sources. It is suitable for environments demanding high-speed switching with low propagation delays. Ensure the operating voltage range aligns with the system's power supply constraints between 2V and 3.6V.
Part Context
This part belongs to the SN74LVC257A-Q1 family of quadruple 2-to-1 multiplexers. It shares functional characteristics with other members like the SN74LVC257ADRQ1 but differs in packaging. The Q1 suffix specifically denotes qualification for automotive use, distinguishing it from standard catalog versions.
Replacement Considerations
SN74LVC257ADRQ1 (SOIC-16 package)
FAQ
How does the device handle mixed voltage systems?
The inputs accept voltages up to 5.5V, allowing the device to be driven by either 3.3V or 5V devices, facilitating its use as a translator in mixed-voltage environments.
What is the recommended configuration for unused inputs?
Unused inputs must not float; they should be tied to VCC or GND to prevent undefined operational states caused by undefined voltages at outside connections.
