p89lpc932ba NXP Semiconductors, p89lpc932ba Datasheet

p89lpc932ba

Manufacturer Part Number

p89lpc932ba

Description

P89lpc932 8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb Flash With 512-byte Data Eeprom And 768-byte Ram

Manufacturer

NXP Semiconductors

Datasheet

1.P89LPC932BA.pdf (60 pages)

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1. General description

2. Features

The P89LPC932 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 P89LPC932 in order to reduce component

count, board space, and system cost.

P89LPC932

8-bit microcontroller with accelerated two-clock 80C51 core

8 kB Flash with 512-byte data EEPROM and 768-byte RAM

Rev. 04 — 06 January 2004

A high performance 80C51 CPU provides instruction cycle times of 167-333 ns for

all instructions except multiply and divide when executing at 12 MHz. This is

6 times the performance of the standard 80C51 running at the same clock

frequency. A lower clock frequency for the same performance results in power

savings and reduced EMI.

2.4 V to 3.6 V V

driven to 5.5 V).

8 kB Flash code memory with 1 kB erasable sectors, 64-byte erasable page size.

256-byte RAM data memory. 512-byte auxiliary on-chip RAM.

512-byte customer Data EEPROM on chip allows serialization of devices, storage

of set-up parameters, etc.

Two 16-bit counter/timers. Each timer may be conﬁgured to toggle a port output

upon timer overﬂow or to become a PWM output.

Real-Time clock that can also be used as a system timer.

Capture/Compare Unit (CCU) provides PWM, input capture, and output compare

functions.

Two analog comparators with selectable inputs and reference source.

Enhanced UART with fractional baud rate generator, break detect, framing error

detection, automatic address detection and versatile interrupt capabilities.

400 kHz byte-wide I

SPI communication port.

Eight keypad interrupt inputs, plus two additional external interrupt inputs.

Four interrupt priority levels.

Watchdog timer with separate on-chip oscillator, requiring no external

components. The watchdog prescaler is selectable from 8 values.

Active-LOW reset. On-chip power-on reset allows operation without external reset

components. A reset counter and reset glitch suppression circuitry prevent

spurious and incomplete resets. A software reset function is also available.

Low voltage reset (Brownout detect) allows a graceful system shutdown when

power fails. May optionally be conﬁgured as an interrupt.

operating range. I/O pins are 5 V tolerant (may be pulled up or

C-bus communication port.

Product data

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