TC7WH157FU(TE12L)

Overview

The TC7WH157FU(TE12L) is a 2-channel digital multiplexer from Toshiba's WH logic series, utilizing L-MOS technology. It features two data inputs (A and B), a common select input, and an active-low strobe input to control output routing. The device operates within a supply voltage range of 2 V to 5.5 V. Propagation delays are specified at 13.2 ns at 3.3 V and 8.4 ns at 5 V. It is housed in an SSOP-8 package with a maximum power dissipation of 300 mW.

Feature Summary

• Features high-speed CMOS operation comparable to Bipolar Schottky TTL while maintaining low power consumption.
• Includes input protection circuits allowing 0 to 7 V tolerance on input pins regardless of the supply voltage.
• Provides balanced propagation delays between low-to-high and high-to-low transitions.

Applications

• Interfacing 5 V systems to 3 V systems
• Connecting battery backup systems with different supply voltages
• General purpose digital signal routing

Procurement Notes

Verify the specific ordering suffix TE12L against official Toshiba documentation to confirm the exact package variant and reel specifications. Ensure compliance with RoHS requirements as indicated in the product datasheet. Confirm that the application environment remains within the specified operating temperature range of -40°C to +85°C for reliable performance.

Selection Notes

Select this component when a single-channel multiplexer with a common select line is required. It is suitable for designs needing 5.5 V tolerant inputs to interface with varying logic levels. Consider the SSOP-8 package constraints and the 300 mW power dissipation limit during thermal design. Verify that the 2 V minimum supply voltage meets the system's operational requirements.

Part Context

This part belongs to the TC7WH157 family of 2-channel multiplexers manufactured by Toshiba Semiconductor and Storage. It utilizes advanced silicon gate CMOS technology to achieve high speed and low noise characteristics. The device is designed for general electronics applications, including computer and office equipment, while excluding unintended usage in safety-critical or medical devices.

Replacement Considerations

TC7WH157FK serves as a direct alternative within the same series, differing primarily in the physical package type rather than electrical function.

FAQ

How does the STROBE input affect the multiplexer outputs?

When the STROBE input is held at a high level, data selection is inhibited, and all outputs are forced to a low level.

What is the input voltage tolerance of the TC7WH157FU?

The device features 5.5 V tolerant inputs, allowing up to 7 V to be applied to input pins without regard to the supply voltage due to internal protection circuits.