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NXP Semiconductors - 8-bit microcontroller

Numéro de référence P89LPC982
Description 8-bit microcontroller
Fabricant NXP Semiconductors 
Logo NXP Semiconductors 





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P89LPC982 fiche technique
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P89LPC980/982/983/985
8-bit microcontroller with accelerated two-clock 80C51 core,
4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC
Rev. 02 — 8 February 2010
Preliminary data sheet
1. General description
The P89LPC980/982/983/985 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 P89LPC980/982/983/985 in order to reduce
component count, board space, and system cost.
2. Features
2.1 Principal features
„ 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. Both the P89LPC982 and the P89LPC985 also include a
256-byte auxiliary on-chip RAM.
„ 8-input multiplexed 10-bit ADC (P89LPC985, 4-input multiplexed 10-bit ADC on
P89LPC983) with window comparator that can generate an interrupt for in or out of
range results. Two analog comparators with selectable inputs and reference source.
„ Five 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 and SPI communication port.
„ High-accuracy internal RC oscillator option 7.373 MHz calibrated to ±1 %, with clock
doubler option, allows operation without external oscillator components. The RC
oscillator option is selectable and fine tunable.
„ Watchdog timer with separate on-chip oscillator, nominal 400 kHz/25 kHz, calibrated to
±10 % at 400 kHz, requiring no external components. The watchdog prescaler is
selectable from eight values.
„ Pin remap for UART, I2C and SPI.
„ 2.4 V to 5.5 V VDD operating range.
„ Enhanced low voltage (brownout) detect allows a graceful system shutdown when
power fails.
„ 28-pin TSSOP and PLCC packages with 23 I/O pins minimum and up to 26 I/O pins
while using on-chip oscillator and reset options.

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