S3C72M5/C72M7/C72M9 is a single-chip CMOS microcontroller from Samsung, using the company's newest 4-bit CPU core, SAM47 (Samsung Arrangeable Microcontrollers). It offers high performance and low power consumption. The S3C72M5/C72M7/C72M9 features a 80 SEG × 16 COM, 88 SEG × 8 COM LCD display controller/driver, as well as 3,584 × 4-bit RAM, 16,384/24,576/32,768 × 8-bit ROM, 51 I/O pins and 9 vectored interrupts.
The S3C72M5/C72M7/C72M9 series is a single‑chip CMOS microcontroller built around Samsung's SAM47 4‑bit CPU core. It offers up to 1,280‑dot LCD direct‑drive capability, a range of timers, serial I/O, and extensive interrupt support, making it suitable for many applications that require LCD functions.
The device is available in a 128‑pin QFP package with up to 51 I/O pins, multiple memory configurations, and both standard ROM and an OTP version (S3P72M9). Power‑down modes, a wide operating voltage range, and detailed clock options provide flexibility for low‑power designs.
| RAM | 3,584 x 4‑bit |
|---|---|
| ROM | 16,384/24,576/32,768 x 8‑bit |
| I/O Pins | 51 (47 configurable, 4 input) |
| LCD Segments | 80 SEG × 16 COM, 88 SEG × 8 COM |
| Operating Temperature | -40 °C to 85 °C |
| Operating Voltage | 1.8 V to 5.5 V |
| Package | 128‑pin QFP |
| Main System Clock | 0.4 MHz – 6 MHz |
| Subsystem Clock | 32.768 kHz |
| Supply Current (5 V, 6 MHz) | 8.0 mA (typical) |
It uses Samsung's newest 4‑bit CPU core, called SAM47.
The device provides up to 51 I/O pins, with 47 configurable pins and 4 input‑only pins.
It operates from –40 °C up to 85 °C.
It is supplied in a 128‑pin QFP package.