S3C7295/P7295 is a single-chip CMOS microcontroller designed for high performance. It features Samsung's newest 4-bit CPU core, SAM47, and offers a high-performance solution with a 704-dot LCD direct drive capability and flexible 8-bit timer/counter.
The S3C7295 is a single‑chip CMOS microcontroller built around Samsung's 4‑bit SAM47 CPU core. It supports up‑to‑704‑dot LCD direct drive, an 8‑bit timer/counter, and offers low‑power operation. An OTP version, the S3P7295, replaces the masked ROM with a 16 KB EPROM while keeping the same pinout.
The document details pin assignments for the 80‑pin QFP package, electrical data such as voltage and temperature ranges, and the procedure for OTP programming. Tables list memory sizes, timer functions, interrupt sources, and power‑down modes, making it a complete reference for designers.
| CPU core | 4‑bit |
|---|---|
| LCD direct drive capability | 704‑dot |
| Package type | 80‑pin QFP |
| RAM | 256 × 4‑bit |
| Operating voltage range | 22 V to 3.4 V |
| Operating temperature | 40 °C to 85 °C |
| Main system clock frequency | 4.19 MHz (typical) |
Up to eight pins of the 80‑pin QFP package can be dedicated to I/O.
Apply 12.5 V to the Vpp(TEST) pin while Vpp is at 5 V to enter the EPROM programming mode.