Technical data sheet for the ADuC845, ADuC847 and ADuC848 microcontrollers from Analog Devices.
The ADuC845/ADuC847/ADuC848 family are 24‑/16‑bit microcontroller units with integrated sigma‑delta ADCs, on‑chip flash memory and a range of peripherals. They target multichannel sensor monitoring, industrial instrumentation and portable data‑logging applications.
The document provides detailed specifications, pin configurations, functional block diagrams, timing data and absolute maximum ratings, along with design‑guidelines for power supply, grounding and layout.
| Core speed | 1.57 MHz (default CD = 3) |
|---|---|
| Flash program memory | 62 kB |
| Flash data memory | 4 kB |
| User RAM | 2304 bytes |
| ADC resolution | 24‑bit (no missing codes) |
| Operating voltage (AV DD) | 2.7‑3.6 V or 4.75‑5.25 V |
The core runs at 1.57 MHz by default (CD = 3).
Each device includes 62 kB of on‑chip Flash/EE program memory.
AV DD can be supplied with 2.7‑3.6 V or 4.75‑5.25 V.
The primary ADC provides up to 24‑bit resolution with no missing codes.