The SDI SDI5229T/5209P datasheet details an 8‑bit Flash MCU with integrated low‑power 24‑bit Sigma‑Delta ADC, pin functions, memory, peripherals and…
This document provides a complete description of the SDI5229 series microcontrollers, aimed at measurement applications. It covers key features such as a 1T instruction cycle compatible with 8051, 30 KB flash, 768 bytes RAM, 35 configurable I/O pins, and a built‑in 3‑channel 24‑bit Sigma‑Delta ADC.
The datasheet also includes detailed information on pin assignments, special function registers, timer/counter operation, UART and I²C interfaces, watchdog behavior, PWM modules, boost converter, LCD driver options, and electrical characteristics such as operating voltage, power consumption, and package dimensions. This manual is written in Chinese.
| Core instruction cycle | 1T (8051 compatible) |
|---|---|
| Flash program memory | 30 KB |
| Operating voltage | 1.8 V – 5.5 V |
| Typical active current | < 1.5 mA @ 3.3 V 9.83 MHz |
| Integrated ADC | 3‑channel 24‑bit Sigma‑Delta |
| General‑purpose I/O pins | 35 |
| Package options | LQFP48 (7.0×7.0×1.40 mm) / SSOP24 (0.635×1.4 mm) |
The device operates from 1.8 V up to 5.5 V.
It provides 30 KB of flash program memory.
The microcontroller offers 35 configurable I/O pins.
A 3‑channel 24‑bit Sigma‑Delta ADC is integrated.