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P89LPC922

NXP
Part Number P89LPC922
Manufacturer NXP
Description 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 256-byte data RAM
Published Mar 22, 2005
Detailed Description P89LPC920/921/922 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 256-byte data...
Datasheet PDF File P89LPC922 PDF File

P89LPC922
P89LPC922

Overview
P89LPC920/921/922 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 256-byte data RAM Rev.
06 — 21 November 2003 Product data 1.
General description The P89LPC920/921/922 are single-chip microcontrollers designed for applications demanding high-integration, low cost solutions over a wide range of performance requirements.
The P89LPC920/921/922 is based on a high performance processor architecture that executes instructions in two to four clocks, six times the rate of standard 80C51 devices.
Many system-level functions have been incorporated into the P89LPC920/921/922 in order to reduce component count, board space, and system cost.
2.
Features 2.
1 Principal features s 2 kB/4 kB/8 kB Flash code memory with 1 kB erasable sectors, 64-byte erasable page size, and single byte erase.
s 256-byte RAM data memory.
s Two 16-bit counter/timers.
Each timer may be configured to toggle a port output upon timer overflow or to become a PWM output.
s Real-Time clock that can also be used as a system timer.
s Two analog comparators with selectable inputs and reference source.
s Enhanced UART with fractional baud rate generator, break detect, framing error detection, automatic address detection and versatile interrupt capabilities.
s 400 kHz byte-wide I2C-bus communication port.
s Configurable on-chip oscillator with frequency range and RC oscillator options (selected by user programmed Flash configuration bits).
The RC oscillator option allows operation without external oscillator components.
Oscillator options support frequencies from 20 kHz to the maximum operating frequency of 12 MHz.
The RC oscillator option is selectable and fine tunable.
s 2.
4 V to 3.
6 V VDD operating range.
I/O pins are 5 V tolerant (may be pulled up or driven to 5.
5 V).
s 15 I/O pins minimum.
Up to 18 I/O pins while using on-chip oscillator and reset options.
2.
2 Additional features s 20-pin TSSOP and DIP packages.
s A high performance 80C51 CPU provides instruction cycle ...


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