Overview
The P89V51RC2FBC,557 is an 8-bit microcontroller from NXP USA Inc., based on the 80C51 architecture. This microcontroller is designed to offer high performance and flexibility, making it suitable for a wide range of applications. It features a robust set of peripherals and programming capabilities, including flash program memory with In-System Programming (ISP) and In-Application Programming (IAP), which allows for firmware updates in the field. The device operates at a 5 V supply voltage and supports clock frequencies from 0 MHz to 40 MHz.
Key Specifications
| Parameter | Value |
|---|---|
| Microcontroller Core | 80C51 |
| Flash Program Memory | 32 kB |
| Data RAM | 1024 B |
| Operating Voltage | 5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Clock Frequency Range | 0 MHz to 40 MHz |
| Package Type | TQFP44 (44 leads) |
| Timers/Counters | Three 16-bit timers/counters |
| Interrupt Sources | Eight interrupt sources with four priority levels |
| I/O Ports | Four 8-bit I/O ports |
| Communication Interfaces | SPI, Enhanced UART |
| Programmable Watchdog Timer | Yes |
Key Features
- 80C51 CPU Core: Compatible with the 80C51 instruction set.
- X2 Mode: Option to run the application with either 12 clocks per machine cycle (default) or 6 clocks per machine cycle, allowing for twice the throughput at the same clock frequency or reduced EMI by halving the clock frequency.
- Flash Program Memory: 32 kB of on-chip flash user code memory with ISP and IAP capabilities.
- Peripheral Control Unit (PCA): With PWM and capture/compare functions.
- High-Current I/O Pins: Three high-current port 1 pins (16 mA each).
- Low Power Modes: Power-down mode with external interrupt wake-up and idle mode.
- Brownout Detection: For robust operation in varying power conditions.
- Low EMI Mode: ALE inhibit for reduced electromagnetic interference.
Applications
The P89V51RC2FBC,557 microcontroller is versatile and can be used in various applications, including:
- Automotive Systems: For control and monitoring in vehicles.
- Industrial Automation: In control systems, sensors, and actuators.
- Medical Devices: For monitoring and control in medical equipment.
- Consumer Electronics: In appliances and other electronic devices.
Q & A
- What is the core architecture of the P89V51RC2FBC,557 microcontroller?
The P89V51RC2FBC,557 is based on the 80C51 microcontroller core. - How much flash program memory does the P89V51RC2FBC,557 have?
The device has 32 kB of on-chip flash program memory. - What are the operating voltage and temperature ranges for this microcontroller?
The operating voltage is 5 V, and the temperature range is -40 °C to +85 °C. - Does the P89V51RC2FBC,557 support in-system programming?
Yes, it supports both ISP and IAP. - What communication interfaces are available on this microcontroller?
The device includes SPI and enhanced UART interfaces. - How many interrupt sources does the P89V51RC2FBC,557 have?
It has eight interrupt sources with four priority levels. - What is the X2 mode feature in the P89V51RC2FBC,557?
The X2 mode allows the microcontroller to run with either 12 clocks per machine cycle or 6 clocks per machine cycle, enhancing throughput or reducing EMI. - Does the P89V51RC2FBC,557 have any high-current I/O pins?
Yes, it has three high-current port 1 pins capable of driving 16 mA each. - What are the low power modes available in this microcontroller?
The device supports power-down mode with external interrupt wake-up and idle mode. - Is the P89V51RC2FBC,557 still in production?
No, the P89V51RC2FBC,557 is obsolete and no longer manufactured.
