datasheetbank_Logo   Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site
Part Name :   

A29L004 View Datasheet(PDF) - AMIC Technology

Part NameDescriptionManufacturer
A29L004 512K X 8 Bit CMOS 3.0 Volt-only, Boot Sector Flash Memory AMICC
AMIC Technology AMICC
A29L004 Datasheet PDF : 39 Pages
First Prev 11 12 13 14 15 16 17 18 19 20 Next Last
A29L004 Series
START
PLSCNT=1
RESET=V ID
Wait 1 us
Protect all sectors:
The indicated portion of
the sector protect
algorithm must be
performed for all
unprotected sectors prior
to issuing the first sector
unprotect address
START
PLSCNT=1
RESET=V ID
Wait 1 us
Temporary Sector No First Write
Unprotect Mode
Cycle=60h?
Yes
Set up sector
address
Sector Protect
Write 60h to sector
address with A6=0,
A1=1, A0=0
No
First Write
No Temporary Sector
Cycle=60h?
Unprotect Mode
Yes
All sectors
protected?
Yes
Set up first sector
address
Increment
PLSCNT
Wait 150 us
Verify Sector
Protect: Write 40h
to sector address
with A6=0, A1=1,
A0=0
Reset
PLSCNT=1
No
PLSCNT
=25?
Read from
sector address
with A6=0,
A1=1, A0=0
No
Data=01h?
Yes
Device failed
Yes
Protect another
Yes
sector?
No
Remove V ID
from RESET
Write reset
command
Sector Protect
Algorithm
Sector Protect
complete
Sector Unprotect:
Write 60h to sector
address with A6=1,
A1=1, A0=0
Increment
PLSCNT
Wait 15 ms
Verify Sector
Unprotect : Write
40h to sector
address with A6=1,
A1=1, A0=0
No
PLSCNT=
1000?
Read from sector
address with A6=1,
A1=1, A0=0
No
Data=00h?
Set up
next sector
address
Yes
Device failed
Yes
Last sector
No
verified?
Sector Unprotect
Algorithm
Yes
Remove V ID
from RESET
Write reset
Command
Sector Unprotect
complete
Figure 2. In-System Sector Protect/Unprotect Algorithms
PRELIMINARY (October, 2002, Version 0.0)
11
AMIC Technology, Corp.
Direct download click here
 

Share Link : AMICC
All Rights Reserved © datasheetbank.com 2014 - 2019 [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]