W83L761G

Overview

The W83L761G is a hardware monitoring integrated circuit manufactured by Nuvoton Technology Corporation (formerly Winbond). It features an on-chip thermal sensor and an 8-bit ADC for temperature conversion. The device operates within a supply voltage range of 3V to 5.5V and supports a temperature measurement range from -20°C to +120°C with an accuracy of ±3°C at 70°C. Communication is handled via a Serial Peripheral Interface (SPI) compatible bus, allowing the host controller to read temperature data in 8-bit or 10-bit two's complement formats. The IC is housed in a compact SOT-23-5 package.

Feature Summary

• Integrated on-chip thermal sensor with high measurement accuracy
• Built-in 8-bit analog-to-digital converter for temperature signal processing
• Serial Peripheral Interface (SPI) slave communication capability
• Supports continuous conversion mode and low-power shutdown mode

Applications

• Hardware temperature monitoring systems
• Embedded system thermal management
• Industrial equipment environmental sensing

Procurement Notes

Verify component authenticity through authorized distributors as the part may be obsolete. Confirm package integrity upon receipt, specifically checking for damage to the SOT-23-5 casing. Ensure that the SPI interface timing parameters align with the host controller's specifications before integration into the final design.

Selection Notes

Select this component when a compact solution for internal temperature monitoring is required. The SPI interface simplifies connection to microcontrollers compared to parallel interfaces. Consider the operating temperature range and supply voltage requirements to ensure compatibility with the target system environment and power rails.

Part Context

The W83L761G belongs to the family of hardware monitoring ICs produced by Nuvoton Technology Corporation. These devices are designed to provide essential environmental monitoring capabilities in electronic systems. The specific model utilizes a serial interface to minimize pin count and board space, making it suitable for applications where physical footprint is a constraint.

Replacement Considerations

Consult official documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical characteristics if considering alternative models from other manufacturers.