0 to 40MHz Flash Programmable 8-bit Microcontroller The T89C51RD2-SMSCM is a microcontroller manufactured by TEMIC (now part of Atmel). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
1. **Core:** 80C51 (8-bit microcontroller)
2. **Flash Memory:** 64 KB (In-System Programmable)
3. **RAM:** 1 KB
4. **EEPROM:** 2 KB (for data storage)
5. **Operating Voltage:** 4.5V to 5.5V
6. **Clock Speed:** Up to 33 MHz
7. **I/O Pins:** 32 (4 ports of 8 bits each)
8. **Timers/Counters:** Three 16-bit timers (Timer 0, Timer 1, and Timer 2)
9. **Serial Communication:** UART, SPI, and I²C interfaces
10. **Interrupts:** 7 interrupt sources with 4 priority levels
11. **Watchdog Timer:** Yes (programmable)
12. **Power Saving Modes:** Idle and Power-Down modes
13. **Package:** PLCC (Plastic Leaded Chip Carrier)
### **Descriptions:**
- The T89C51RD2-SMSCM is a high-performance CMOS microcontroller based on the 80C51 architecture.
- It features in-system programmable (ISP) Flash memory, allowing firmware updates without removing the chip from the circuit.
- The microcontroller includes an integrated EEPROM for non-volatile data storage.
- It is designed for embedded applications requiring high-speed processing and low power consumption.
### **Features:**
- **Enhanced 80C51 Core:** Backward-compatible with standard 8051 instructions.
- **In-System Programming (ISP):** Supports firmware updates via serial interface.
- **On-Chip Debug Support:** Facilitates debugging during development.
- **Low Power Consumption:** Supports Idle and Power-Down modes for energy efficiency.
- **Multiple Communication Interfaces:** Includes UART, SPI, and I²C for flexible connectivity.
- **Robust Peripheral Set:** Timers, watchdog timer, and interrupts for real-time control.
This information is strictly based on the available technical data for the T89C51RD2-SMSCM microcontroller from TEMIC.
