ADUC841BCPZ8-3

Microcontrollers Overview

The ADUC841BCPZ8-3 is an 8-bit MicroConverter featuring a single-cycle 20 MIPS 8052 core. It integrates an 8-channel, 420 kSPS 12-bit ADC with DMA and dual 12-bit voltage output DACs. Memory includes up to 62 kB Flash/EE program memory, 4 kB Flash/EE data memory, and 2304 bytes RAM. The device supports I2C, SPI, and UART interfaces, operates from 2.7 V to 5.25 V, and functions within a -40°C to +85°C temperature range.

Microcontrollers Feature Summary

• Integrates high-speed 12-bit ADC with hardware calibration and DMA controller for direct capture to RAM.
• Includes dual 12-bit voltage output DACs and on-chip temperature monitor function.
• Features in-circuit reprogrammable Flash/EE memory with extended endurance and retention characteristics.
• Provides comprehensive serial communication via UART, I2C, and SPI interfaces alongside watchdog timer.

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 against the manufacturer's current ordering guide to confirm package type and temperature grade. Confirm that the component meets all required environmental specifications for the intended application environment before finalizing procurement decisions.

Microcontrollers Selection Notes

Select this component when a pin-compatible upgrade from the ADuC812 or ADuC831 series is required. Ensure the design utilizes the external crystal clocking method suitable for the ADuC841 variant rather than the internal PLL found in other family members.

Microcontrollers Part Context

This part belongs to the Analog Devices ADuC84x MicroConverter family, which combines high-performance analog peripherals with an embedded microcontroller. It serves as a complete smart transducer front end, integrating signal conditioning and processing capabilities on a single chip.

Microcontrollers Replacement Considerations

The ADUC841BCPZ8-3 is a pin-compatible upgrade for the ADuC812, ADuC831, and ADuC832. Verify functional equivalence regarding clock source requirements and peripheral availability when substituting these legacy parts.

Microcontrollers FAQ

How is the ADUC841 clocked compared to the ADUC842?

The ADUC841 is clocked directly from an external crystal up to 20 MHz, whereas the ADUC842 uses a 32 kHz crystal with an on-chip PLL to generate the core clock.

What is the maximum sampling rate of the integrated ADC?

The integrated 12-bit ADC supports a maximum sampling rate of 420 kSPS.

Does the ADUC841 include digital-to-analog converters?

Yes, the ADUC841 includes two 12-bit voltage output DACs and dual output PWM Σ-Δ DACs.