ADUC843BCP32-5

Microcontrollers Overview

The ADUC843BCP32-5 is an 8-bit MicroConverter MCU based on the single-cycle 20 MIPS 8052 core. It integrates a high-speed 12-bit ADC with 8 channels and a 420 kSPS sampling rate, alongside 62 kB of Flash/EE program memory and 4 kB of data memory. The device features 2304 bytes of on-chip RAM, dual data pointers, and an extended 11-bit stack pointer. Connectivity includes UART, I2C, and SPI serial interfaces. Unlike the ADuC841/ADuC842, this model excludes analog DAC outputs but retains a temperature monitor, watchdog timer, power supply monitor, and real-time clock.

Microcontrollers Feature Summary

• Integrates a high-performance single-cycle 8052 core with up to 20 MIPS peak performance.
• Includes an 8-channel, self-calibrating 12-bit ADC with DMA controller for high-speed capture.
• Features extensive nonvolatile memory with in-circuit reprogrammable Flash/EE program and data storage.
• Provides comprehensive on-chip peripherals including timers, watchdog, and multiple serial communication interfaces.

Microcontrollers Applications

• Optical networking laser power control
• Base station systems
• Precision instrumentation and smart sensors
• Transient capture systems

Microcontrollers Procurement Notes

Verify the specific suffix 'BCP32' against the manufacturer's current ordering guide to confirm package type and temperature range. Confirm that the absence of DACs aligns with system requirements, as this variant differs from the ADuC841/ADuC842. Ensure development tools support the 8052 architecture for programming the integrated Flash memory.

Microcontrollers Selection Notes

Select this component when analog-to-digital conversion is required without the need for digital-to-analog outputs. The ADUC843 serves as a pin-compatible upgrade to older ADuC8xx series devices. Consider the 8 mm x 8 mm chip scale package for space-constrained designs requiring robust analog front-end capabilities combined with microcontroller processing.

Microcontrollers Part Context

This part belongs to the Analog Devices ADuC84x family of MicroConverters. These devices are designed as complete smart transducer front ends. The ADUC843 specifically differentiates itself by omitting the voltage output DACs found in the ADuC841 and ADuC842, while maintaining identical digital and ADC performance characteristics within the same package footprint.

Microcontrollers Replacement Considerations

The ADUC843BCP32-5 is a pin-compatible upgrade for the ADuC812, ADuC831, and ADuC832. Designers migrating from these legacy parts should verify that the increased core speed and memory capacity are compatible with existing firmware constraints.