P89LPC925FDH,529

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Introduction to P89LPC925FDH,529

P89LPC925FDH,529 is an 8-bit microcontroller from Philips Semiconductor designed for embedded-control applications that require low power consumption, precise timing capability, and high performance for extended periods of time. The product is powered by a low-voltage design, with a wide operating voltage range from 1.9V to 5.5V. Built-in memory class includes 4K bytes of flash program memory, 128 bytes of RAM, 220 bytes of scratchpad, and a hardware real-time clock employing a flexible and accurate industrial temperature range of -40°C to 85°C.

Application Fields of P89LPC925FDH, 529

The P89LPC925FDH, 529 microcontroller is suitable for a wide range of embedded-control applications, such as automotive, industrial, and consumer electronics. Automotive applications include engine and gearbox control, driving-assistance systems, safety systems, body electronics, and active noise reduction (ANR). Industrial applications include robotics, vending, smart energy, logistics, HVAC and refrigeration, industrial motor control, and medical monitoring systems. In consumer electronics, P89LPC925FDH, 529 microcontrollers are used in white goods, home-automation solutions, and medical/fitness applications.

Working Principle of P89LPC925FDH,529

The P89LPC925FDH, 529 microcontroller implements the low power 8051 CISC core instruction set, with access to a wide range of peripheral devices, input/output (I/O) ports, and timers. To optimize power consumption and system performance, the microcontroller includes many embedded features, such as a brownout (BO) reset, power-on reset (POR), power-on reset enable (POE), Low Voltage Detection (LVD) Reset, and a Watchdog Timer (WDT). The microcontroller supports up to a 20-MHz clock frequency, which can be synchronized with an external clock source.

The microcontroller also features two UARTs, one I2C-bus controller with an I2C-bus serial interface, two CCUs, two configurable Timer/Counters, an SPI-bus controller, and a Peripheral Module Exchange (PME) system. The PME system gives users the flexibility to dynamically exchange multiple peripheral functions. This system is particularly advantageous for applications developed using modular programming strategies.

Additionally, P89LPC925FDH, 529 microcontrollers can support up to 32 general-purpose input/output (GPIO) pins connected to configurable port pins. Each GPIO pin can be individually configured as an input, an output, a push-pull, an open drain, an analog input, or an analog output, depending on the application needs. Each pin also has its own dedicated software-programmable pull-up resistor and interrupt capability.

Conclusion

The P89LPC925FDH, 529 microcontroller is a low-power, precise timing, and high-performance 8-bit microcontroller suitable for many embedded-control applications. Powerful embedded features, such as brownout (BO) reset, power-on reset (POR), power-on reset enable (POE), Low Voltage Detection (LVD) Reset, and a Watchdog Timer (WDT), further ensure low power consumption and system performance. The microcontroller also features two UARTs, one I2C-bus controller with an I2C-bus serial interface, two CCUs, two configurable Timer/Counters, an SPI-bus controller, and a Peripheral Module Exchange (PME) system. When combined with up to 32 general-purpose input/output (GPIO) pins, P89LPC925FDH, 529 microcontroller provides a flexible platform for various embedded-control applications.

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