87C52 查看數據表（PDF） - Philips Electronics

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87C52

80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V/ low power/ high speed 30/33 MHz

Philips Electronics 

Philips Semiconductors

80C51 8-bit microcontroller family

4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),

low power, high speed (30/33 MHz)

BLOCK DIAGRAM 1

Preliminary data

80C3xX2; 80C5xX2;

87C5xX2

Accelerated 80C51 CPU

(12-clk mode, 6-clk mode)

Crystal or

Resonator

0K / 4K / 8K / 16K /

32K Byte

CODE ROM / EPROM

128 / 256 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

su01579

2001 Sep 24

6

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