P89LPC938

8 kB byte-erasable Flash code memory organized into 1 kB sectors and 64-byte
pages. Single-byte erasing allows any byte(s) to be used as non-volatile data storage.
256-byte RAM data memory and a 512-byte auxiliary on-chip RAM.
512-byte customer Data EEPROM on chip allows serialization of devices, storage ofset-up parameters, etc.
8-input multiplexed 10-bit A/D converter. Two analog comparators with selectableinputs and reference source.
Two 16-bit counter/timers (each may be configured to toggle a port output upon timeroverflow or to become a PWM output) and a 23-bit system timer that can also be usedas a RTC.
Enhanced UART with fractional baud rate generator, break detect, framing errordetection, and automatic address detection; 400 kHz byte-wide I2C-buscommunication port and SPI communication port.
CCU provides PWM, input capture, and output compare functions.
High-accuracy internal RC oscillator option allows operation without external oscillatorcomponents. The RC oscillator option is selectable and fine tunable.
2.4 V to 3.6 V VDD operating range. I/O pins are 5 V tolerant (may be pulled up ordriven to 5.5 V).
28-pin TSSOP, PLCC, and HVQFN packages with 23 I/O pins minimum and up to 26I/O pins while using on-chip oscillator and reset options.

The P89LPC938 is a single-chip microcontroller, available in low cost packages, based ona high performance processor architecture that executesinstructions in two to four clocks,six times the rate of standard 80C51 devices. Many system-level functions have beenincorporated into the P89LPC938 in order to reduce component count, board space, andsystem cost.