Key facts
- Brand
- Analog Devices
- Model
- ADuC845/ADuC847/ADuC848
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 4
- Languages
- EN
- Last added
- 2026-10-04
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Analog Devices ADuC845/ADuC847/ADuC848 Datasheet
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.
Analog Devices ADuC845/ADuC847/ADuC848 specifications
| 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 |
All Analog Devices ADuC845/ADuC847/ADuC848 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the core clock frequency of the ADuC845/ADuC847/ADuC848?
The core runs at 1.57 MHz by default (CD = 3).
How much flash program memory is available on these devices?
Each device includes 62 kB of on‑chip Flash/EE program memory.
What is the workaround for interrupts occurring during DATAFLASH/EE read or write operations?
Disable all interrupts prior to a read or write operation by setting the EA bit to 0.
From: ANALOG DEVICES ADuC845/ADuC847/ADuc848: Anomaly Sheet (Rev A 2004-05-01-)
How should ADC noise performance issues at maximum clock frequency be handled?
Set the CD bits in the PLLCON SFR to 3 or greater for the duration of an ADC conversion.
From: ANALOG DEVICES ADuC845/ADuC847/ADuc848: Anomaly Sheet (Rev A 2004-05-01-)
What is the maximum core clock speed?
The maximum external crystal frequency supported by the on-chip programmable PLL is 12.58 MHz.
How many ADC input channels are available?
All parts in the ADuC845/ADuC847/ADuC848 family support up to 10 ADC input channels.