The document introduces the ADuC824 MicroConverter®, which is a microcontroller with high-resolution Sigma-Delta ADCs and embedded FLASH MCU. It features dual independent ADCs (16-bit and 24-bit resolution), programmable gain front end, 8 KB on-chip Flash/EE program memory, 640 bytes on-chip Flash/EE data memory, and more.
The ADuC824 is a complete smart transducer front‑end that integrates two high‑resolution sigma‑delta ADCs (primary 24‑bit, auxiliary 16‑bit), an 8051‑compatible MCU core, 8 KB of on‑chip flash program memory, 640 bytes of data memory and a 12‑bit DAC. It operates from a single 3 V or 5 V supply and is packaged in a 52‑lead MQFP.
The document provides a full feature list, electrical specifications, timing diagrams, pin configurations, memory organization, and detailed descriptions of on‑chip peripherals such as timers, watchdog, power‑supply monitor, SPI, UART and I²C interfaces, as well as design guidelines for power consumption and board layout.
| Flash program memory | 8 KB |
|---|---|
| Flash data memory | 640 bytes |
| DAC resolution | 12 bits |
| Primary ADC resolution | 24 bits |
| Auxiliary ADC resolution | 16 bits |
| Supply voltage | 3 V or 5 V |
| Typical power consumption (normal mode) | 3 mA @ 3 V |
| Package | 52‑lead MQFP |
| Programmable I/O lines | 26 |
The ADuC824 provides 8 KB of on‑chip flash program memory.
It can operate from either a 3 V or a 5 V supply.
The device includes two independent sigma‑delta ADCs, a primary 24‑bit and an auxiliary 16‑bit converter.