P89LPC915 Datasheet, PDF (4/75 Pages) NXP Semiconductors – 8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter

NXP Semiconductors
5. Block diagram
P89LPC915/916/917
8-bit microcontrollers with accelerated two-clock 80C51 core
P89LPC915
HIGH PERFORMANCE
ACCELERATED 2-CLOCK 80C51 CPU
P1[5:0]
P0[5:0]
2 kB CODE FLASH
internal bus
256 BYTE DATA RAM
PORT 1
CONFIGURABLE I/O
PORT 0
CONFIGURABLE I/O
external clock
input
KEYPAD INTERRUPT
WATCHDOG TIMER
AND OSCILLATOR
PROGRAMMABLE
OSCILLATOR DIVIDER
CPU clock
ON-CHIP RC
OSCILLATOR
Fig 1. P89LPC915 block diagram
UART
I²C
ADC1/DAC1
REAL TIME CLOCK/
SYSTEM TIMER
TIMER 0
TIMER 1
ANALOG
COMPARATORS
POWER MONITOR
(POWER-ON RESET,
BROWNOUT RESET)
TXD
RXD
SCL
SDA
AD10
AD11
AD12
AD13
DAC1
T0
CMP2
CIN2B
CIN2A
CIN1A
CIN1B
CMPREF
002aaa822
P89LPC915_916_917_5
Product data sheet
Rev. 05 — 15 December 2009
© NXP B.V. 2009. All rights reserved.
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