ADuC841/ADuC842/ADuC843 is a 12-bit ADC and DAC with embedded high speed 62-kB Flash MCU by Analog Devices.
The document describes the ADuC841/ADuC842/ADuC843 family of complete smart transducer front ends. These devices integrate a high-performance self-calibrating multichannel ADC, dual DACs, and an optimized single-cycle 20 MHz 8-bit MCU based on the 8051 instruction set compatible core onto a single chip.
| ADC Resolution | 12 Bits |
|---|---|
| Flash/EE Program Memory | Up to 62 kBytes |
| Data RAM Size | 2304 bytes |
| MCU Core Speed (ADuC841) | 20 MHz max |
| DAC Resolution | 12 Bits |
| Power-Down Current (3V) | 10 pA |
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.
The ADuC843 is identical to the ADuC842 except that it has no analog DAC outputs.