P89LPC922, 8-bit Microcontroller, DIP-20

The P89LPC922 is a single-chip 8-bit microcontroller from NXP Semiconductors, tailored for applications requiring high integration and cost-effective solutions across a broad performance spectrum. Built upon an enhanced 80C51 processor architecture, it executes instructions in two to four clocks, delivering up to six times the throughput of standard 80C51 devices.

Available in Flash memory configurations of 2 KB, 4 KB, or 8 KB, the P89LPC922 offers flexibility to meet varying program storage needs. It includes 256 bytes of data RAM for efficient data handling. The microcontroller operates at supply voltages as low as 2.4V, with I/O pins capable of tolerating voltages up to 5.5V, enhancing its versatility in mixed-voltage environments.

The device features an enhanced UART with a fractional baud rate generator, break detect, framing error detection, automatic address detection, and versatile interrupt capabilities, ensuring robust and flexible serial communication. Additionally, it integrates a 400 kHz byte-wide I²C-bus communication port, facilitating efficient communication with peripheral devices.

For analog applications, the P89LPC922 includes two analog comparators with selectable inputs and reference sources, enhancing its analog signal processing capabilities. The microcontroller also offers two 16-bit counter/timers, each configurable to toggle a port output upon timer overflow or to function as a PWM output, providing precise timing and control features.

Housed in a 20-pin package, the P89LPC922 is suitable for space-constrained designs, making it ideal for a wide range of embedded applications, including consumer electronics, industrial control systems, and battery-powered devices.

• High-Performance Two-Clock 80C51 Core: Executes instructions in two to four clocks, achieving up to six times the throughput of standard 80C51 devices.
• Flexible Flash Memory Options: Available in configurations of 2 KB, 4 KB, or 8 KB Flash code memory, with 1 KB erasable sectors and 64-byte erasable page size, supporting single-byte erase operations.
• Enhanced UART: Features a fractional baud rate generator, break detect, framing error detection, automatic address detection, and versatile interrupt capabilities for robust serial communication.
• Integrated I²C-Bus Communication Port: Includes a 400 kHz byte-wide I²C-bus communication port for efficient peripheral interfacing.
• Analog Comparators: Equipped with two analog comparators with selectable inputs and reference sources, enhancing analog signal processing capabilities.
• Low Power Consumption: Designed for low-power operation at 3V, making it suitable for battery-powered applications.