AT89S52-33AC ATMEL Corporation, AT89S52-33AC Datasheet - Page 20

• Manufacturer Part Number: AT89S52-33AC
• Description: 8-bit Microcontroller with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL Corporation

Figure 16. Flash Memory Serial Downloading
Flash Programming and Verification Waveforms – Serial Mode
Figure 17. Serial Programming Waveforms
20
AT89S52
3-33 MHz
DATA OUTPUT
INSTRUCTION
7
CLOCK IN
INPUT
6
5
P1.5/MOSI
P1.6/MISO
P1.7/SCK
XTAL2
XTAL1
GND
AT89S52
4
RST
V
CC
3
V
CC
2
V
IH
1
0