AT89S51-24SC ATMEL Corporation, AT89S51-24SC Datasheet - Page 17

• Manufacturer Part Number: AT89S51-24SC
• Description: 8-bit Microcontroller with 4K Bytes In-System Programmable Flash
• Manufacturer: ATMEL Corporation

Figure 7. Flash Memory Serial Downloading
Flash Programming and Verification Waveforms – Serial Mode
Figure 8. Serial Programming Waveforms
2487B–MICRO–12/03
3-33 MHz
DATA OUTPUT
INSTRUCTION
7
CLOCK IN
INPUT
6
5
P1.5/MOSI
P1.6/MISO
P1.7/SCK
XTAL2
XTAL1
GND
AT89S51
4
RST
V
CC
3
V
CC
2
V
IH
1
0
AT89S51
17