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TS87C51RD2-MCB from ATMEL

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TS87C51RD2-MCB

Manufacturer: ATMEL, AT, T, TEMIC

High Performance 8-bit Microcontroller

Partnumber Manufacturer Quantity Availability
TS87C51RD2-MCB,TS87C51RD2MCB ATMEL, AT, T, TEMIC 4306 In Stock

Description and Introduction

High Performance 8-bit Microcontroller The **TS87C51RD2-MCB** is a microcontroller manufactured by **Atmel** (now part of Microchip Technology). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Core:** 80C51 (8-bit microcontroller)  
- **Clock Speed:** Up to **33 MHz**  
- **Flash Memory:** **64 KB** (reprogrammable)  
- **RAM:** **1 KB**  
- **EEPROM:** **2 KB** (for data storage)  
- **I/O Ports:** **32 pins** (4 × 8-bit ports)  
- **Timers/Counters:** **3** (Timer 0, Timer 1, and Timer 2)  
- **Serial Communication:** **UART** (Full-duplex)  
- **Interrupt Sources:** **7** (including external, timer, and serial interrupts)  
- **Power Supply:** **4.5V to 5.5V** (operating voltage)  
- **Package:** **PLCC 44** (Plastic Leaded Chip Carrier)  

### **Descriptions:**
- The **TS87C51RD2-MCB** is a high-performance CMOS version of the 80C51 microcontroller.  
- It features **in-system programmable (ISP) Flash memory**, allowing firmware updates without removing the chip.  
- Includes **power-saving modes** (Idle and Power-down) for low-power applications.  
- Compatible with the **MCS-51 instruction set**, ensuring software compatibility with older 8051-based designs.  

### **Features:**
- **Enhanced 80C51 Core** – Faster execution (6 clock cycles per machine cycle).  
- **64 KB Flash Memory** – Supports **10,000 write/erase cycles**.  
- **2 KB EEPROM** – For non-volatile data storage.  
- **Programmable Watchdog Timer** – Improves system reliability.  
- **Three-Level Program Lock** – Security for code protection.  
- **Low EMI (Electromagnetic Interference)** – Suitable for noise-sensitive applications.  
- **Wide Operating Temperature Range:** **-40°C to +85°C** (industrial-grade).  

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

(Note: The manufacturer **Atmel** was acquired by **Microchip Technology**, so support and documentation may now be under Microchip's resources.)

Application Scenarios & Design Considerations

High Performance 8-bit Microcontroller

Alternative Part Number

  • AT89C51RD2-UM --: Same 8051 core family from the original vendor, 64KB flash, drop-in compatible in most TS87C51RD2 designs with similar pinout and voltage range.
  • P89V51RD2FN --: Industry-standard 8051-compatible microcontroller with 64KB flash and similar peripheral set, widely used as a second source for Atmel 8051 devices.
  • W77E58P-40 --: Fast enhanced 8051 with comparable flash and I/O, suitable functional replacement when exact Atmel part is unavailable, though pinout should be verified.
  • AT89C51RD2-IM --: Same 8051 core family with 64KB flash, similar pinout and functionality; widely available and directly replaces the TS87C51RD2 in most designs.
  • W77E516A40PL --: Fast enhanced 8051 with 64KB flash and comparable I/O; suitable functional replacement when exact timing and package constraints allow.
  • P87C51RD2BBD --: Same 80C51 core with 64KB flash and 1KB RAM in a PLCC44 package, functionally equivalent to the TS87C51RD2-MCB.
  • W78E516DDG --: 8051-compatible microcontroller with 64KB flash in a PLCC44 package, suitable as an alternative with similar memory and pinout.
  • P89C51RD2HBP --: NXP 8051 microcontroller with 64KB flash and similar peripheral set in PLCC44, a common drop-in alternative for legacy Temic 87C51RD2 designs.
  • W78E516DPG --: Nuvoton 8051-compatible MCU with 64KB flash in PLCC44, offering similar performance and pinout compatibility for replacement of the Temic part.

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