P89LPC980 NXP [NXP Semiconductors], P89LPC980 Datasheet - Page 4
P89LPC980
Manufacturer Part Number
P89LPC980
Description
8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.P89LPC980.pdf
(85 pages)
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4. Block diagram
P89LPC980_982_983_985_2
Preliminary data sheet
Fig 1.
P89LPC980/982 block diagram
RESONATOR XTAL2
CRYSTAL
P3[1:0]
P2[7:0]
P1[7:0]
P0[7:0]
OR
XTAL1
P89LPC980/982
OSCILLATOR DIVIDER
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
WATCHDOG TIMER
PROGRAMMABLE
AND OSCILLATOR
CONFIGURABLE
AUXILIARY RAM
CODE FLASH
OSCILLATOR
(P89LPC982)
INTERRUPT
DATA RAM
256-BYTE
256-BYTE
8 kB/4 kB
KEYPAD
PORT 3
PORT 2
PORT 1
PORT 0
Rev. 02 — 8 February 2010
ACCELERATED 2-CLOCK 80C51 CPU
8-bit microcontroller with accelerated two-clock 80C51 core
internal bus
CPU
clock
OSCILLATOR
WITH CLOCK
ON-CHIP RC
DOUBLER
P89LPC980/982/983/985
POWER MANAGEMENT
(POWER-ON RESET,
BROWNOUT RESET,
REAL-TIME CLOCK/
SYSTEM TIMER
COMPARATORS
REGULATORS)
ANALOG
TIMER 0
TIMER 1
TIMER 2
TIMER 3
TIMER 4
I
2
UART
C-BUS
SPI
002aae532
© NXP B.V. 2010. All rights reserved.
TXD
RXD
SCL
SDA
SPICLK
MOSI
MISO
SS
T0
T1
T2
T2EX
T3
T3EX
T4
T4EX
CMP2
CIN2B
CIN2A
CMP1
CIN1A
CIN1B
4 of 85
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