P89C669 查看數據表（PDF） - Philips Electronics

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P89C669

80C51 8-bit microcontroller family with extended memory; 96 kB Flash with 2 kB RAM

Philips Electronics 

Philips Semiconductors

5. Functional diagram

P89C669

80C51 8-bit microcontroller family with extended memory

VDD

VSS

Address bus 0-7

Data Bus

RXD0

TXD0

INT0

INT1

CEX3/T0

CEX4/T1

WR

RD

RXD1

TXD1

RST

EA/VPP

PSEN

ALE/PROG

Fig 2. Functional diagram.

P89C669

T2

T2EX

ECI

CEX0

CEX1

CEX2

SCL

SDA

Address Bus 16-22

XTAL2

XTAL1

002aaa403

9397 750 12299

Product data

Rev. 02 — 13 November 2003

© Koninklijke Philips Electronics N.V. 2003. All rights reserved.

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