CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER The S87C52-1 is an 8-bit microcontroller manufactured by Intel. Below are its specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Manufacturer:** Intel
- **Core:** 8051
- **Architecture:** 8-bit
- **Clock Speed:** Up to 12 MHz
- **Program Memory (ROM):** 8 KB (OTP - One-Time Programmable)
- **RAM:** 256 bytes
- **Timers:** Three 16-bit timers/counters
- **I/O Ports:** Four 8-bit bidirectional ports (P0, P1, P2, P3)
- **Serial Communication:** Full-duplex UART
- **Interrupts:** Six interrupt sources with two priority levels
- **Operating Voltage:** 4.5V to 5.5V
- **Package:** 40-pin DIP (Dual In-line Package)
- **Operating Temperature Range:** Commercial (0°C to 70°C)
### **Descriptions:**
The S87C52-1 is a member of Intel’s MCS-51 microcontroller family, based on the 8051 core. It features an 8 KB OTP (One-Time Programmable) ROM, making it suitable for applications requiring firmware stability. It includes standard 8051 peripherals such as timers, UART, and multiple I/O ports.
### **Features:**
- **8051-Compatible Core:** Ensures compatibility with existing 8051 software and tools.
- **On-Chip ROM:** 8 KB OTP for program storage.
- **Expandable Memory:** Supports external memory expansion up to 64 KB.
- **Low Power Modes:** Includes Idle and Power-down modes for reduced power consumption.
- **Boolean Processor:** Supports bit-level operations for efficient control applications.
- **Watchdog Timer:** Provides system reliability by resetting the MCU in case of software failure.
This information is strictly based on the manufacturer's datasheet and technical documentation.
