Описание
The P89LPC9211 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.
- 2 kB/4 kB/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.
- 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.
- Enhanced UART with a fractional baud rate generator, break detect, framing error detection, and automatic address detection; 400 kHz byte-wide I²C-bus communication port.
- 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.
- 20-pin TSSOP and DIP packages with 15 I/O pins minimum and up to 18 I/O pins while using on-chip oscillator and reset options.
