P89LPC9201 Overview
Key Specifications
Package: SOP
Pins: 20
Max Voltage (typical range): 3.6 V
Min Voltage (typical range): 2.4 V
Description
The P89LPC9201/9211/922A1/9241/9251 is a single-chip microcontroller, available in low cost packages, 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 device in order to reduce component count, board space, and system cost.
Key Features
- 256-byte RAM data memory
- 4-input multiplexed 8-bit ADC/single DAC output (P89LPC9241/9251). Two analog comparators with selectable inputs and reference source
- On-chip temperature sensor integrated with ADC module (P89LPC9241/9251)
- 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
- A high performance 80C51 CPU
