P89LPC9402 Overview
Description
The P89LPC9402 is a multi-chip module consisting of a P89LPC931A1 single-chip microcontroller combined with a PCF8576D universal LCD driver in a low-cost 64-pin package. The LCD driver provides 32 segments and supports from 1 to 4 backplanes.
Key Features
- 256-byte RAM data memory
- 32 segment × 4 backplane LCD controller supports from 1 to 4 backplanes
- Two analog comparators with selectable inputs and reference source
- Two 16-bit counter/timers (each may be configured to toggle a port output upon timer overflow or to become a PWM output)
- A 23-bit system timer that can also be used as real-time clock consisting of a 7-bit prescaler and a programmable and readable 16-bit timer
- 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)
- Enhanced low voltage (brownout) detect allows a graceful system shutdown when power fails
