The S3C72I9 is a high-performance single-chip CMOS microcontroller designed using Samsung's newest 4-bit CPU core, SAM47. It offers an excellent design solution for a wide variety of applications that require LCD functions, with features such as up to 896-dot LCD direct drive capability, 8-bit timer/counter 0, 16-bit timer/counter 1, and serial I/O.
This handbook describes the Samsung S3C7219/P7219 single‑chip CMOS microcontroller, highlighting its 4‑bit CPU core, LCD drive capability, and a range of timers, counters, and serial I/O functions. It outlines the available OTP version (S3P7219) and details the pin layout for the 100‑pin QFP package.
The document includes block diagrams, pin assignment tables, circuit diagrams, and electrical characteristics such as operating voltage, temperature range, and clock frequencies, serving as a technical reference for designers integrating this microcontroller into their products.
| RAM | 8,192 x 4-bit |
|---|---|
| ROM | 32,768 x 8-bit |
| I/O Pins | 39 |
| LCD Segments | 56 segments, 16 commons |
| Operating Voltage | 1.8 V to 5.5 V |
| Operating Temperature | -40 °C to 85 °C |
| Package | 100‑pin QFP |
| Main System Clock | 0.4 MHz – 6 MHz |
| Subsystem Clock | 32.768 kHz |
The microcontroller operates from 1.8 V up to 5.5 V.
Up to 39 pins can be dedicated to I/O functions.
It supports 56 segments and 16 common terminals for LCD driving.
The device can operate from –40 °C to +85 °C.