ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC MULTIPLEXER 4 X 2:1 16SO
- Series：74LVC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Multiplexer
- Circuit：4 x 2:1
- Independent Circuits：1
- Current - Output High, Low：24mA, 24mA
- Voltage Supply Source：Single Supply
- Voltage - Supply：1.65V ~ 3.6V
- 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：-
Download product information
Overview
The SN74LVC257ANSR is a quadruple 2-line to 1-line data selector and multiplexer with 3-state outputs, manufactured by Texas Instruments. It operates from a supply voltage of 1.65V to 3.6V. The device features inputs that accept voltages up to 5.5V, allowing compatibility with mixed 3.3V or 5V systems. It provides a maximum propagation delay of 4.6ns at 3.3V. The component is housed in a 16-pin SOIC package.
Feature Summary
- Provides four independent 2-to-1 multiplexing channels with 3-state outputs for bus-organized systems.
- Features 5.5V-tolerant inputs enabling direct interfacing with 3.3V or 5V logic devices.
- Includes high electrostatic discharge protection exceeding 2000V via the human-body model.
Applications
- Cable Modem Termination Systems
- Tests and Measurements
- I/O Expanders
- Motor Drivers
- Network Switches
Procurement Notes
Verify the specific ordering suffix 'ANSR' corresponds to the SOIC-16 package and tape-and-reel carrier format. Confirm the operating temperature range matches the -40°C to +85°C specification for this variant. Ensure the design accounts for the active-low output enable requirement during power-up sequences.
Selection Notes
Select this component when low-voltage operation between 1.65V and 3.6V is required alongside 5V input tolerance. The 3-state outputs are suitable for shared bus architectures where multiple devices drive common lines. Consider the 4.6ns propagation delay for timing-critical signal routing applications.
Part Context
This part belongs to the SNx4LVC257A family of quadruple multiplexers. It utilizes CMOS technology to provide balanced output drive capabilities. The device functions as both a data selector and a level translator within mixed-voltage digital environments.
Replacement Considerations
SN74LVC257ADBR (SSOP-16)
FAQ
How does the device handle mixed voltage environments?
The inputs are tolerant to 5.5V, allowing them to be driven directly by 3.3V or 5V devices while the core operates at 1.65V to 3.6V.
What is the function of the OE pin?
The Output Enable (OE) pin is active-low. When high, the outputs enter a high-impedance state; when low, they transmit the selected data.
