CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER The **S87C54** is a microcontroller manufactured by **Intel**. Here are its specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Intel
- **Architecture:** 8-bit
- **Core:** MCS-51 (8051 compatible)
- **Clock Speed:** Up to 12 MHz
- **Program Memory (ROM):** 8 KB (OTP - One-Time Programmable)
- **RAM:** 256 bytes
- **I/O Pins:** 32 (4 ports of 8 bits each)
- **Timers/Counters:** 2 (16-bit)
- **Serial Communication:** UART (Full-duplex)
- **Interrupt Sources:** 5
- **Operating Voltage:** 4.5V to 5.5V
- **Power Consumption:** Low-power CMOS technology
### **Descriptions:**
- The **S87C54** is an enhanced version of the **8051** microcontroller with **OTP (One-Time Programmable) ROM**.
- It is designed for embedded control applications requiring **low power consumption** and **high performance**.
- Features **CMOS technology**, making it suitable for power-sensitive applications.
- Compatible with the **MCS-51 instruction set**, ensuring software compatibility with other 8051 variants.
### **Features:**
- **8 KB OTP ROM** for program storage (non-reprogrammable).
- **256 bytes of on-chip RAM** for data storage.
- **Two 16-bit timers/counters** for precise timing operations.
- **Full-duplex UART** for serial communication.
- **32 programmable I/O lines** for interfacing with external devices.
- **Boolean processor** for efficient bit manipulation.
- **Power-saving idle and power-down modes**.
- **Wide operating voltage range (4.5V–5.5V)**.
- **Industrial temperature range support** (-40°C to +85°C).
This microcontroller is commonly used in **industrial control systems, automotive electronics, and embedded applications**.
