0 to 40MHz Flash Programmable 8-bit Microcontroller The T89C51RD2-RLTIL is a microcontroller manufactured by TEMIC (now part of Atmel). Below are the factual specifications, descriptions, and features based on available knowledge:
### **Specifications:**
- **Manufacturer:** TEMIC (later acquired by Atmel)
- **Core:** 80C51 (8-bit)
- **Flash Memory:** 64 KB (In-System Programmable)
- **RAM:** 1 KB
- **EEPROM:** 2 KB
- **Clock Speed:** Up to 40 MHz
- **Operating Voltage:** 4.5V to 5.5V
- **I/O Pins:** 32 (4 ports of 8 bits each)
- **Timers/Counters:** 3 (16-bit)
- **UART:** 1 (Full-duplex)
- **Interrupt Sources:** 7
- **Watchdog Timer:** Yes
- **Power Saving Modes:** Idle & Power-down
- **Package:** PLCC (Plastic Leaded Chip Carrier)
### **Descriptions:**
- The T89C51RD2-RLTIL is a high-performance 80C51-based microcontroller with enhanced features.
- It includes in-system programmable Flash memory, allowing firmware updates without removing the chip.
- Designed for industrial and embedded applications requiring reliability and extended memory.
### **Features:**
- **64 KB Flash Memory** – Supports in-system programming (ISP).
- **2 KB EEPROM** – For non-volatile data storage.
- **40 MHz Operation** – High-speed processing.
- **Three 16-bit Timers** – For precise timing control.
- **Full-Duplex UART** – Serial communication support.
- **Power Management Modes** – Reduces power consumption.
- **Watchdog Timer** – Enhances system reliability.
- **Wide Operating Voltage** – 4.5V to 5.5V.
This information is based on the manufacturer's datasheet and technical documentation. For exact details, refer to the official datasheet.
