P89LPC985FDH datasheet(5/85 Pages) NXP

Part #	P89LPC985FDH

Description	8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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5 / 85 page

P89LPC980_982_983_985_2

Preliminary data sheet

Rev. 02 — 8 February 2010

5 of 85

NXP Semiconductors

P89LPC980/982/983/985

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

(1) Only on the P89LPC985.

Fig 2.

P89LPC983/985 block diagram

ACCELERATED 2-CLOCK 80C51 CPU

8 kB/4 kB

CODE FLASH

256-BYTE

DATA RAM

PORT 2

CONFIGURABLE I/Os

PORT 1

CONFIGURABLE I/Os

PORT 0

CONFIGURABLE I/Os

KEYPAD

INTERRUPT

PROGRAMMABLE

OSCILLATOR DIVIDER

CPU

clock

CONFIGURABLE

OSCILLATOR

ON-CHIP RC

OSCILLATOR

WITH CLOCK

DOUBLER

internal bus

POWER MANAGEMENT

(POWER-ON RESET,

BROWNOUT RESET,

REGULATORS)

002aae533

UART

ANALOG

COMPARATORS

256-BYTE

AUXILIARY RAM

(P89LPC985)

I2C-BUS

PORT 3

CONFIGURABLE I/Os

P89LPC983/985

WATCHDOG TIMER

AND OSCILLATOR

TIMER 0

TIMER 1

REAL-TIME CLOCK/

SYSTEM TIMER

SPI

P3[1:0]

P2[7:0]

P1[7:0]

P0[7:0]

TXD

RXD

SCL

SDA

T0

T1

CMP2

CIN2B

CIN2A

CMP1

CIN1A

CIN1B

AD00

AD01

AD02

AD03

AD04(1)

AD05(1)

AD06(1)

AD07(1)

10-BIT ADC

TIMER 2

TIMER 3

TIMER 4

T2

T2EX

T3

T3EX

T4

T4EX

SPICLK

MOSI

MISO

SS

CRYSTAL

OR

RESONATOR

XTAL2

XTAL1

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