at89s8253-24psu ATMEL Corporation, at89s8253-24psu Datasheet - Page 42

• Manufacturer Part Number: at89s8253-24psu
• Description: At89s8253 8-bit Microcontroller With 12k Bytes Flash And 2k Bytes Eeprom
• Manufacturer: ATMEL Corporation

Figure 25-3. Flash/EEPROM Serial Downloading
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3-24 MHz
DATA OUTPUT
INSTRUCTION
CLOCK IN
INPUT
AT89S8253
P1.6/MISO
P1.5/MOSI
P1.7/SCK
XTAL2
XTAL1
GND
Oscillator Bypass
Fuse (Fuse4) Off
AT89S8253
RST
V
CC
2.7V to 5.5V
V
IH
DATA OUTPUT
INSTRUCTION
CLOCK IN
INPUT
EXTERNAL
3-24 MHz
CLOCK
P1.6/MISO
P1.5/MOSI
P1.7/SCK
XTAL1
GND
Oscillator Bypass
Fuse (Fuse4) On
AT89S8253
RST
V
CC
3286K–MICRO–12/06
2.7V to 5.5V
V
IH