P89LPC9151 Datasheet, PDF (1/91 Pages) NXP Semiconductors – 8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC

P89LPC9151/9161/9171
8-bit microcontroller with accelerated two-clock 80C51 core,
2 kB 3 V byte-erasable flash with 8-bit ADC
Rev. 02 — 9 February 2010
Product data sheet
1. General description
The P89LPC9151/9161/9171 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. Features
2.1 Principal features
„ 2 kB byte-erasable flash code memory organized into 256-byte sectors and 16-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. Two analog comparators with
selectable inputs and reference source.
„ Two 16-bit counter/timers. Timer 0 (and Timer 1 - P89LPC9171) 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.
„ SPI communication port (P89LPC9161).
„ 2.4 V to 3.6 V V_DD 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.
„ 16-pin TSSOP with 12 I/O pins minimum and up to 14 I/O pins while using on-chip
oscillator and reset options (P89LPC9161/9171), and 14-pin TSSOP packages with 10
I/O pins minimum and up to 12 I/O pins while using on-chip oscillator and reset options
(P89LPC9151).