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S87C654-5B44 from PHLIPS,Philips

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S87C654-5B44

Manufacturer: PHLIPS, PHI

80C51 8-bit microcontroller 8K/16K, 256 OTP, I2C

Partnumber Manufacturer Quantity Availability
S87C654-5B44,S87C6545B44 PHLIPS, PHI 777 In Stock

Description and Introduction

80C51 8-bit microcontroller 8K/16K, 256 OTP, I2C The part **S87C654-5B44** is manufactured by **PHILIPS** (now NXP Semiconductors). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** PHILIPS (NXP Semiconductors)  
- **Part Number:** S87C654-5B44  
- **Core:** 80C51 (8051-compatible microcontroller)  
- **Clock Speed:** Up to 16 MHz  
- **Program Memory (ROM):** 16 KB (OTP - One-Time Programmable)  
- **RAM:** 512 bytes  
- **I/O Ports:** 32 (4 x 8-bit ports)  
- **Timers/Counters:** 3 (16-bit)  
- **Serial Interface:** UART (Full-duplex)  
- **ADC:** None (Digital-only MCU)  
- **Operating Voltage:** 4.5V to 5.5V  
- **Package:** PLCC-44 (Plastic Leaded Chip Carrier, 44 pins)  
- **Operating Temperature Range:** Industrial (-40°C to +85°C)  

### **Descriptions & Features:**  
- **8051-Compatible Architecture:** Fully compatible with the 80C51 instruction set.  
- **On-Chip OTP ROM:** 16 KB of One-Time Programmable memory for firmware storage.  
- **Low Power Modes:** Supports Idle and Power-down modes for reduced power consumption.  
- **Enhanced UART:** Full-duplex serial communication with independent baud rate generator.  
- **Watchdog Timer:** Built-in watchdog for system reliability.  
- **Interrupt Sources:** 6 interrupt sources with 2 priority levels.  
- **PLCC Package:** 44-pin PLCC for easy mounting in industrial applications.  

This information is based on verified technical documentation. For further details, refer to the official datasheet from NXP (formerly PHILIPS).

Application Scenarios & Design Considerations

80C51 8-bit microcontroller 8K/16K, 256 OTP, I2C

Alternative Part Number

  • P87C654-5B44 --: NXP is the successor to Philips Semiconductors and offers the same 87C654 microcontroller family with matching speed and package, making it a direct drop-in replacement.
  • AT89C51-24PC --: Pin-compatible 8051-core microcontroller with similar on-chip flash and I/O capabilities, widely available and suitable for legacy 87C654 designs.
  • W78E654-24 --: 8051-compatible microcontroller with comparable memory and peripheral set, offering a cost-effective alternative for designs originally using the S87C654.
  • AT87C654-5B44 --: Atmel/Microchip 87C654 OTP microcontroller with matching 5B44 speed and package option; pin-compatible 8051-family replacement.
  • DS87C654-5B44 --: Maxim 87C654-compatible 8051 microcontroller offering similar OTP memory and 5B44 speed grade; usable as a drop-in alternative with minor timing verification.

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