AT89S8252-16AA ATMEL Corporation, AT89S8252-16AA Datasheet - Page 22

• Manufacturer Part Number: AT89S8252-16AA
• Description: 8-Bit Microcontroller with 8K Bytes Flash
• Manufacturer: ATMEL Corporation

Figure 14. Programming the Flash/EEPROM Memory
Figure 16. Verifying the Flash/EEPROM Memory
4-126
PROGRAMMING
MODES TABLE
PROGRAMMING
3-24 MHz
MODES TABLE
SEE FLASH
3-24 MHz
SEE FLASH
0000H/27FFH
0000H/27FFH
ADDR.
ADDR.
A8 - A13
A8 - A13
A0 - A7
A0 - A7
AT89S8252
P1
P2.0 - P2.5
P2.6
P2.7
P3.6
P3.7
XTAL2
XTAL1
GND
P1
P2.0 - P2.5
P2.6
P2.7
P3.6
P3.7
XTAL2
XTAL1
GND
AT89S8252
AT89S8252
PSEN
PSEN
RST
ALE
RST
ALE
V
V
EA
P0
EA
P0
CC
CC
+5V
PGM DATA
(USE 10K
PULLUPS)
+5V
V
V
V
PGM
DATA
PROG
V
V
IH
PP
IH
PP
IH
Figure 15. Flash/EEPROM Serial Downloading
3-24 MHz
DATA OUTPUT
INSTRUCTION
CLOCK IN
INPUT
P1.5/MOSI
P1.6/MISO
P1.7/SCK
XTAL2
XTAL1
GND
AT89S8252
RST
V
CC
+4.0V to 6.0V
V
IH