Electronic component search and free download site. Transistors,MosFET ,Diode,Integrated circuits
English
한국어
日本語
русский
简体中文
español
零件编号
产品描述 (功能)
S29AL004D 查看數據表(PDF) - Spansion Inc.
零件编号
产品描述 (功能)
生产厂家
S29AL004D
4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
Spansion Inc.
S29AL004D Datasheet PDF : 55 Pages
First
Prev
11
12
13
14
15
16
17
18
19
20
Next
Last
Advance Information
START
PLSCNT = 1
RESET# = V
ID
Wait 1 µs
Temporary Sector
No
First Write
Unprotect Mode
Cycle = 60h?
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 µs
First Write
No
Temporary Sector
Cycle = 60h?
Unprotect Mode
Increment
PLSCNT
No
PLSCNT
= 25?
Yes
Device failed
Yes
Set up sector
address
Sector Protect:
Write 60h to sector
address with
A6 = 0, A1 = 1,
A0 = 0
Wait 150 µs
Verify Sector
Protect: Write 40h
to sector address
with A6 = 0,
A1 = 1, A0 = 0
Read from
sector address
with A6 = 0,
A1 = 1, A0 = 0
Reset
PLSCNT = 1
No
Data = 01h?
Yes
Yes
Protect another
sector?
No
Remove V
ID
from RESET#
Write reset
command
Sector Protect
Sector Protect
Algorithm
complete
Increment
PLSCNT
Yes
No
All sectors
protected?
Yes
Set up first sector
address
Sector Unprotect:
Write 60h to sector
address with
A6 = 1, A1 = 1,
A0 = 0
Wait 15 ms
Verify Sector
Unprotect: Write
40h to sector
address with
A6 = 1, A1 = 1,
A0 = 0
No
PLSCNT
= 1000?
Yes
Read from
sector address
with A6 = 1,
A1 = 1, A0 = 0
No
Data = 00h?
Yes
Set up
next sector
address
Device failed
Last sector
No
verified?
Yes
Sector Unprotect
Algorithm
Remove V
ID
from RESET#
Write reset
command
Sector Unprotect
complete
Figure 2. In-System Sector Protect/Sector Unprotect Algorithms
February 18, 2005 S29AL004D_00_A1
S29AL004D
17
Share Link:
datasheetq.com [
Privacy Policy
]
[
Request Datasheet
] [
Contact Us
]