ADUC843BCPZ62-3

Microcontrollers Overview

The ADUC843BCPZ62-3 is an 8-bit MicroConverter integrating a single-cycle 20 MIPS 8052 core with up to 62 kB Flash program memory and 2.25 kB data RAM. It features an 8-channel, 12-bit ADC operating at 420 kSPS and includes on-chip peripherals such as UART, I²C, SPI, three timers, and a watchdog timer. The device operates within a voltage range of 2.7 V to 3.6 V or 4.75 V to 5.25 V and supports industrial temperatures from -40°C to +85°C.

Microcontrollers Feature Summary

• Integrates a high-speed 12-bit ADC with DMA controller for direct capture to RAM
• Includes an optimized single-cycle 8052 core with extended stack pointer and dual data pointers
• Features nonvolatile Flash/EE memory with in-circuit reprogrammability and high endurance
• Provides multiple serial communication interfaces including UART, I²C, and SPI

Microcontrollers Applications

• Optical networking laser power control
• Base station systems
• Precision instrumentation and smart sensors
• Transient capture systems
• Distributed acquisition systems (DAS)

Microcontrollers Procurement Notes

Verify the specific suffix '62-3' against official Analog Devices documentation to confirm package type and temperature grade. Confirm that the absence of DAC outputs aligns with system requirements, as this variant differs from the ADuC841/ADuC842. Ensure supply chain sources provide valid traceability for the component's manufacturing origin.

Microcontrollers Selection Notes

Select this component when analog-to-digital conversion speed is critical due to its 420 kSPS ADC capability. Choose this part over variants with DACs if analog output generation is unnecessary. Verify that the 8052 instruction set compatibility meets existing software architecture needs. Consider the LFCSP-56 package constraints during PCB layout planning.

Microcontrollers Part Context

This device belongs to the ADuC84x family of MicroConverters, designed as pin-compatible upgrades to earlier ADuC812/ADuC831/ADuC832 models. It shares architectural similarities with the ADuC842 but excludes the dual 12-bit voltage output DACs found in other family members. The series emphasizes integrated signal conditioning and processing capabilities.

Microcontrollers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.