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AT89S52-24PU Datasheet(PDF) 24 Page - ATMEL Corporation

Part No. AT89S52-24PU
Description  8-bit Microcontroller with 8K Bytes In-System Programmable Flash
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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 24 page
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24
1919D–MICRO–6/08
AT89S52
Figure 22-1. Programming the Flash Memory (Parallel Mode)
Figure 22-2. Verifying the Flash Memory (Parallel Mode)
P1.0-P1.7
P2.6
P3.6
P2.0 - P2.4
A0 - A7
ADDR.
0000H/1FFFH
SEE FLASH
PROGRAMMING
MODES TABLE
3-33 MHz
P0
V
P2.7
PGM
DATA
PROG
V/V
IH
PP
V
IH
ALE
P3.7
XTAL2
EA
RST
PSEN
XTAL1
GND
V
CC
AT89S52
P3.3
P3.0
RDY/
BSY
A8 - A12
CC
P1.0-P1.7
P2.6
P3.6
P2.0 - P2.4
A0 - A7
ADDR.
0000H/1FFFH
SEE FLASH
PROGRAMMING
MODES TABLE
3-33 MHz
P0
P2.7
PGM DATA
(USE 10K
PULLUPS)
V
IH
V
IH
ALE
P3.7
XTAL 2
EA
RST
PSEN
XTAL1
GND
V
CC
AT89S52
P3.3
A8 - A12
V
CC




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