Professional IC Distribution & Technical Solutions

The S-80C154-25 is a microcontroller manufactured by TEMIC. Below are the factual specifications, descriptions, and features of the device:

Specifications:

• Manufacturer: TEMIC
• Core: 80C51 (8051-compatible)
• Operating Frequency: Up to 25 MHz
• Program Memory (ROM): 16 KB (mask-programmable)
• Data Memory (RAM): 512 bytes
• I/O Ports: 32 (4 x 8-bit ports)
• Timers/Counters: 3 (16-bit)
• Serial Interface: Full-duplex UART
• Interrupt Sources: 6
• Power Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Package: 40-pin DIP (Dual In-line Package)

Descriptions:

The S-80C154-25 is an enhanced 8051-compatible microcontroller designed for embedded control applications. It features high-speed operation (up to 25 MHz), integrated ROM, and multiple I/O ports for interfacing with external devices. Its architecture supports efficient real-time processing with built-in timers, serial communication, and interrupt handling.

Features:

• High-Speed 80C51 Core: Executes instructions in fewer clock cycles than standard 8051 variants.
• On-Chip ROM: 16 KB of mask-programmable ROM for firmware storage.
• Expandable Memory: Supports external program and data memory up to 64 KB.
• Multiple I/O Ports: Four 8-bit bidirectional ports for interfacing peripherals.
• Enhanced Timers: Three 16-bit timers/counters for precise timing operations.
• Serial Communication: Built-in UART for RS-232 or other serial protocols.
• Low EMI: Designed for reduced electromagnetic interference.
• Wide Operating Temperature: Suitable for industrial and automotive applications.

This microcontroller is commonly used in industrial control systems, automotive electronics, and embedded applications requiring high performance and reliability.

*(Note: TEMIC was later acquired by Atmel, and some variants may be discontinued or rebranded.)*