Overview
The P89LPC925FDHY is an 8-bit microcontroller produced by NXP USA Inc., based on the enhanced 80C51 CPU architecture. This microcontroller is designed for applications requiring high integration, low cost, and a wide range of performance capabilities. It features a two-clock 80C51 core, which executes instructions at six times the rate of standard 80C51 devices, significantly enhancing performance. The device is part of the LPC900 series, known for its low power consumption and versatile peripheral set, making it suitable for various embedded system applications.
Key Specifications
| Specification | Details |
|---|---|
| Microcontroller Core | Enhanced 80C51 CPU |
| Program Memory | 8 KB Flash |
| Data Memory | 256-byte RAM |
| Operating Voltage | 2.4 V to 3.6 V |
| Maximum Clock Frequency | 18 MHz |
| Package Type | 20-Pin TSSOP |
| I/O Pins | High drive current (20 mA) on select pins |
| Communication Interfaces | UART, I2C (400 kHz), and external interrupt inputs |
| Timers/Counters | Two 16-bit counter/timers |
| Analog Comparators | Two analog comparators with selectable inputs and reference source |
| Operating Temperature | -40°C to 85°C |
Key Features
- Enhanced 80C51 CPU core, executing instructions in two to four clocks, six times faster than standard 80C51 devices.
- 8 KB Flash code memory with 1 kB erasable sectors and 64-byte erasable page size.
- 256-byte RAM data memory.
- Two 16-bit counter/timers with PWM output capability.
- Real-Time clock that can also be used as a system timer.
- Two analog comparators with selectable inputs and reference source.
- Enhanced UART with fractional baud rate generator, break detect, and framing error detection.
- 400 kHz byte-wide I2C-bus communication port.
- Configurable on-chip oscillator with RC oscillator option (factory calibrated to ±1%).
- High drive current (20 mA) on select I/O pins.
- Controlled slew rate port outputs to reduce EMI.
- Four interrupt priority levels and eight keypad interrupt inputs plus two additional external interrupt inputs.
Applications
The P89LPC925FDHY is suitable for a variety of applications that require low power consumption, high performance, and a rich set of peripherals. These include:
- Industrial control systems.
- Consumer electronics.
- Automotive systems.
- Medical devices.
- Smart home devices.
- IoT applications.
Q & A
- What is the core architecture of the P89LPC925FDHY?
The P89LPC925FDHY is based on an enhanced 80C51 CPU core.
- How much program memory does the P89LPC925FDHY have?
The device has 8 KB of Flash program memory.
- What is the maximum clock frequency of the P89LPC925FDHY?
The maximum clock frequency is 18 MHz.
- What communication interfaces are available on the P89LPC925FDHY?
The device features UART, I2C (400 kHz), and external interrupt inputs.
- Does the P89LPC925FDHY have analog comparators?
Yes, it has two analog comparators with selectable inputs and reference source.
- What is the operating voltage range of the P89LPC925FDHY?
The operating voltage range is 2.4 V to 3.6 V.
- Is the P89LPC925FDHY RoHS compliant?
Yes, the P89LPC925FDHY is RoHS compliant (2011/65/EU, 2015/863).
- What is the package type of the P89LPC925FDHY?
The device is packaged in a 20-Pin TSSOP.
- Does the P89LPC925FDHY support high drive current on its I/O pins?
Yes, it supports high drive current (20 mA) on select I/O pins.
- What are the key applications of the P89LPC925FDHY?
The device is suitable for industrial control systems, consumer electronics, automotive systems, medical devices, smart home devices, and IoT applications.
