ADuC834 is a MicroConverter® with dual 16-bit/24-bit �-� ADCs with an embedded 62 kB Flash MCU.
The ADuC834 MicroConverter® integrates dual high‑resolution ADCs (24‑bit primary, 16‑bit auxiliary), an 8052‑compatible MCU core, 62 KB flash program memory, 4 KB flash data memory, and a range of on‑chip peripherals such as DACs, timers, UART, SPI, and a temperature sensor. It is targeted at intelligent sensor, weighing scale, portable instrumentation, and data‑logging applications.
Key features include selectable 3 V or 5 V operation, low power consumption (as low as 2.3 mA normal mode at 3.6 V), on‑chip PLL up to 12.58 MHz, and multiple package options (52‑lead MQFP and 56‑lead LFCSP). The datasheet provides full electrical specifications, pin‑out tables, memory organization, and timing diagrams for designers.
| Primary ADC Resolution | 24‑bit |
|---|---|
| Auxiliary ADC Resolution | 16‑bit |
| Flash Program Memory | 62 KB |
| Flash Data Memory | 4 KB |
| On‑Chip RAM | 2304 Bytes |
| Maximum Core Clock | 12.58 MHz |
| Normal‑Mode Power Consumption (3 V) | 2.3 mA max @ 3.6 V |
| Supply Voltage Range (3 V version) | 2.7 V – 3.6 V |
| Supply Voltage Range (5 V version) | 4.75 V – 5.25 V |
It includes 62 KB of on‑chip flash program memory and 4 KB of flash data memory.
The device operates from 2.7 V to 3.6 V for the 3 V version and from 4.75 V to 5.25 V for the 5 V version.