The S3C7044/C7048 is a single-chip CMOS microcontroller designed for very high-performance using Samsung's newest 4-bit CPU core, SAM47. It features 512×4-bit RAM, 4096×8-bit ROM (S3C7044) or 8192×8-bit ROM (S3C7048) memory, as well as multiple timer/counters and a serial I/O interface. It also provides advanced CMOS technology for low power consumption and a wide operating voltage range.
This manual describes the Samsung S3C7044, S3C7048 and S3C7048P microcontrollers, covering their architecture, CPU core, memory organization, I/O ports, timers, serial interface and power‑down modes. It includes block diagrams, pin‑assignment tables and programming guidelines such as OTP programming.
Key sections include a product overview, detailed register descriptions, clock circuit information, interrupt handling, and specifications for operating voltage, temperature range, package types and peripheral features.
| ROM size | 4096 × 8‑bit (S3C7044) / 8192 × 8‑bit (S3C7048) |
|---|---|
| RAM size | 512 × 4‑bit |
| Operating voltage | 1.8 V – 5.5 V (Main) / 2.0 V – 5.5 V (OTP) |
| Operating temperature | -40 °C to 85 °C |
| Package types | 42‑pin SDIP, 44‑pin QFP |
They use Samsung's SAM47 4‑bit CPU core.
The main supply voltage is 1.8 V to 5.5 V, and the OTP programming voltage is 2.0 V to 5.5 V.