P89C51RA 查看數據表（PDF） - Philips Electronics

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P89C51RA

80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM

Philips Electronics 

Philips Semiconductors

80C51 8-bit Flash microcontroller family

8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1KB RAM

Preliminary data

P89C51RA2/RB2/RC2/RD2xx

BLOCK DIAGRAM 1

ACCELERATED 80C51 CPU

(12-CLK MODE, 6-CLK MODE)

CRYSTAL OR

RESONATOR

8K / 16K / 32K /

64 KBYTE

CODE FLASH

512 / 1024 BYTE

DATA RAM

PORT 3

CONFIGURABLE I/Os

PORT 2

CONFIGURABLE I/Os

PORT 1

CONFIGURABLE I/Os

PORT 0

CONFIGURABLE I/Os

OSCILLATOR

FULL-DUPLEX

ENHANCED UART

TIMER 0

TIMER 1

TIMER 2

PROGRAMMABLE

COUNTER ARRAY

(PCA)

WATCHDOG TIMER

su01606

2002 Jul 18

4

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