The S3C7031/7032 is a single-chip CMOS microcontroller that uses Samsung's newest 4-bit CPU core to provide high performance. It also has comparator inputs, high-current LED direct-drive pins, serial I/O interface, and a versatile 8-bit timer/counter, making it an excellent design solution for a wide range of applications such as mouse controllers, subsystem controllers, and toys. Up to 15 pins of the 20-pin DIP or 20-pin SOP package can be dedicated to I/O. Pull-up resistors are assignable to all of the pins by software. Four vectored interrupts provide fast response to internal and external events. In addition, the S3C7031/7032's advanced CMOS technology provides for very low power consumption and a wide operating voltage range.
The S3C7031/7032 is a single‑chip CMOS microcontroller featuring a 4‑bit CPU core, comparator inputs, high‑current LED drive pins, serial I/O, and an 8‑bit timer/counter. It is suited for applications such as mouse controllers, subsystem controllers, and toys, offering up to 15 configurable I/O pins in a 20‑pin DIP or SOP package.
The document details memory capacities, pin functions, package dimensions, and electrical characteristics, including operating voltage, temperature range, and oscillator options. Development support is provided through Samsung's SMDS environment and the Samsung Generalized Assembler.
| Program memory (S3C7031) | 1024 x 8‑bit |
|---|---|
| Program memory (S3C7032) | 2048 x 8‑bit |
| Data memory (S3C7031) | 128 x 4‑bit |
| Data memory (S3C7032) | 256 x 4‑bit |
| Operating temperature | -40°C to 85°C |
| Operating voltage range | 27V to 6.0V |
| Package type | 20‑DIP, 20‑SOP |
| Crystal/ceramic oscillator frequency | 4.19 MHz (typical) |
| Maximum I/O pins | 15 pins |
The device operates from 27 V down to 6.0 V.
The S3C7032 provides 2048 × 8‑bit program memory.
It is offered in 20‑pin DIP and 20‑pin SOP packages.
The typical crystal or ceramic oscillator frequency is 4.19 MHz.