ADUC842BCP32-3

Microcontrollers Overview

The ADUC842BCP32-3 is an 8-bit MicroConverter MCU featuring a single-cycle 20 MIPS 8052 core and up to 62 kB Flash program memory. It integrates an 8-channel, 12-bit ADC with DMA capture and two 12-bit voltage output DACs. The device operates on 2.7 V to 3.6 V or 4.75 V to 5.25 V supplies within the -40°C to +85°C temperature range. Key peripherals include UART, I²C, SPI, three timers, and a watchdog timer.

Microcontrollers Feature Summary

• Integrates a high-speed 12-bit ADC with DMA controller for direct data capture into RAM.
• Includes dual 12-bit voltage output DACs and on-chip precision voltage reference.
• Features a self-calibrating analog front end with integrated temperature monitor.
• Provides in-circuit reprogrammable Flash/EE memory with extended endurance.

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 'BCP32-3' against the manufacturer's current ordering guide to confirm package type (LFCSP) and industrial temperature rating. Confirm availability status as this component may be subject to discontinuation or limited production runs. Ensure design-in documentation matches the Rev B datasheet specifications.

Microcontrollers Selection Notes

Select this part when a pin-compatible upgrade from the ADuC832 is required with enhanced analog performance. Choose the ADUC842 over the ADuC841 if an internal PLL driven by a 32 kHz crystal is needed for lower power consumption. Opt for this model over the ADuC843 specifically because it includes the dual 12-bit voltage output DACs.

Microcontrollers Part Context

This component belongs to the Analog Devices ADuC84x family of MicroConverters. These devices are designed as complete smart transducer front ends, combining high-performance mixed-signal capabilities with an embedded microcontroller. The ADUC842 variant specifically bridges the gap between standard MCUs and dedicated data acquisition systems.

Microcontrollers Replacement Considerations

Public confirmed substitute part numbers: ADUC842BSZ62-3, ADUC842BCPZ8-3, ADUC842BSZ62-5.