ZSSC3281BC5B

Overview

The ZSSC3281BC5B is a sensor signal conditioning integrated circuit manufactured by Renesas Electronics. It features an Arm Cortex-M3 microprocessor core operating at 16MHz, supported by 64kByte of flash memory. The device includes two fully independent analog front ends (AFE) with input switch matrices, programmable gain amplifiers (PGA), and analog-to-digital converters (ADC) providing up to 24-bit resolution. Each AFE supports calibration using up to four temperature sources, including onboard PTAT, and can process three independent temperature channels alongside two main sensor channels.

Feature Summary

• Integrates an Arm Cortex-M3 processor for digital processing and smart sensor functions
• Provides dual independent analog front ends with high-resolution ADC conversion
• Includes built-in temperature sensing capabilities for precise sensor channel calibration

Applications

• Industrial Internet of Things (IIoT) smart sensors
• Temperature measurement systems
• Pressure sensing applications
• Flow and level sensing devices

Procurement Notes

Verify the specific suffix 'BC5B' against official Renesas documentation to confirm package type and availability status. Distributor listings may indicate limited supply or discontinuation for certain variants within the ZSSC3281 family. Confirm RoHS compliance and environmental specifications directly from the manufacturer datasheet before procurement.

Selection Notes

Select this component when designing smart sensors requiring high-precision analog signal conditioning combined with embedded processing. Ensure the design utilizes the dual AFE architecture for simultaneous multi-channel acquisition. Verify that the 16MHz clock speed and 64kByte memory are sufficient for the required calibration algorithms and data processing tasks.

Part Context

The ZSSC3281BC5B belongs to the ZSSC3281 family of resistive sensor signal conditioners. This series is designed to enhance industrial applications by integrating resistance sensor functionality and advanced calibration features into a single chip, supporting the transition toward more intelligent and connected industrial automation systems.

Replacement Considerations

Consult the Renesas product selection guide for alternative members of the ZSSC3281 family or the ZSSC3240 series if different pinouts or memory configurations are required. Verify functional compatibility regarding the Arm Cortex-M3 interface and analog front-end specifications before substituting.