IC89LV52 Datasheet, PDF (10/22 Pages) Integrated Circuit Solution Inc – CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8(4)-Kbytes of FLASH

IC89LV52(51)A
Start
Programming
VPP=Vppl,
Address=0
PLSCNT=0,
Address=0,
Setup Received
Command Mode
(1)
VPP=Vppl,
Setup ’40H’
Command
INC
Address
P2.6 set low pulse
for 100 ns
Setup Address
,Data
VPP=Vpph
orVppl(2)
PROG set low
pulse for 200 us
No
Last Address ?
Yes
Setup ’C0H’
Command
P2.6 set low pulse
for 100 ns
Setup Address
& P2.7 = 0
INC PLSCNT
No
PLSCNT=10?
Yes
Programming
Error
Read Data
& Set P2.7=1
INC
Address
No
Verify Data?
Yes
No
Last Address?
Yes
Programming
Completed
1. Received Command Mode status:
RST=1, PSEN=0, PROG=1, VPP=1, P2.6=1, P2.7=1, P3.6=1, P3.7=1
2. The VPP voltage is decided by Signature Byte address(032H)
Figure. 6 IC89LV52(51)A Main Memory Programming Flow
10
Integrated Circuit Solution Inc.
MC010-0D 11/16/2001