AT89S51 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT89S51' PDF : 32 Pages View PDF
Figure 17-1. Programming the Flash Memory (Parallel Mode)
A0 - A7
ADDR.
0000H/FFFH
A8 - A11
SEE FLASH
PROGRAMMING
MODES TABLE
AT89S51
P1.0-P1.7
VCC
P2.0 - P2.3 P0
P2.6
P2.7
ALE
P3.3
P3.6
P3.7
VCC
PGM
DATA
PROG
XTAL 2
EA
VIH/VPP
3-33 MHz
P3.0
RDY/
BSY
XTAL1
RST
VIH
GND
PSEN
Figure 17-2. Verifying the Flash Memory (Parallel Mode)
A0 - A7
ADDR.
0000H/FFFH
A8 - A11
SEE FLASH
PROGRAMMING
MODES TABLE
AT89S51
P1.0-P1.7
VCC
P2.0 - P2.3 P0
P2.6
P2.7
ALE
P3.3
P3.6
P3.7
XTAL 2
EA
VCC
PGM DATA
(USE 10K
PULLUPS)
VIH
3-33 MHz
AT89S51
XTAL1
RST
VIH
GND
PSEN
17
2487D–MICRO–6/08
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