p89c669 NXP Semiconductors, p89c669 Datasheet - Page 5

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p89c669

Manufacturer Part Number
p89c669
Description
P89c669 80c51 8-bit Microcontroller Family With Extended Memory; 96 Kb Flash With 2 Kb Ram
Manufacturer
NXP Semiconductors
Datasheet

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Philips Semiconductors
5. Functional diagram
9397 750 12299
Product data
Fig 2. Functional diagram.
Address bus 0-7
Data Bus
CEX3/T0
CEX4/T1
RXD0
TXD0
INT0
INT1
WR
RD
ALE/PROG
EA/V PP
PSEN
RXD1
TXD1
RST
Rev. 02 — 13 November 2003
V DD
P89C669
80C51 8-bit microcontroller family with extended memory
V SS
XTAL2
XTAL1
002aaa403
T2
T2EX
ECI
CEX0
CEX1
CEX2
SCL
SDA
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Address Bus 16-22
P89C669
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