AS29LV800 ANADIGICS Inc, AS29LV800 Datasheet - Page 6

• Manufacturer Part Number: AS29LV800
• Description: 3V 1M8/512K16 CMOS Flash EEPROM
• Manufacturer: ANADIGICS Inc

AS29LV800
Command format
1
2
3
4
5
6
Command
sequence
Reset/Read
Reset/
Read
Autoselect
ID Read
Program
Unlock
bypass
Unlock bypass
program
Unlock bypass reset
Chip
Erase
Sector
Erase
Sector Erase Suspend
Sector Erase Resume
6
Bus operations defined in "Mode definitions," on page 3.
Reading from and programming to non-erasing sectors allowed in Erase Suspend mode.
Address bits A11-A18 = X = Don’t Care for all address commands except where Program Address and Sector Address are required.
Data bits DQ15-DQ8 are don’t care for unlock and command cycles.
The Unlock Bypass command must be initiated before the Unlock Bypass Program command.
The Unlock Bypass Reset command returns the device to reading array data when it is in the unlock bypass mode.
×16
×8
×16
×8
×16
×8
×16
×8
×16
×8
×16
×8
×16
×8
×16
×8
Required
bus write
cycles
1
3
3
4
3
2
2
6
6
1
1
Address
XXXh
AAAh
AAAh
AAAh
AAAh
AAAh
AAAh
AAAh
XXXh
XXXh
555h
555h
555h
555h
555h
555h
555h
AAA
XXX
XXX
1st bus cycle
555
Data
AAh
AAh
AAh
AAh
AAh
AAh
AAh
AAh
F0h
A0h
B0h
ALLIANCE SEMICONDUCTOR
90h
30h
Program
Address
Address
address
2AAh
2AAh
2AAh
2AAh
2AAh
2AAh
2AAh
Read
555h
555h
555h
555h
555h
555h
555h
2nd bus cycle
XXX
2AA
555
Program
Data
Read
Data
data
55h
55h
55h
55h
55h
55h
00h
55h
55h
Address
AAAh
AAAh
AAAh
AAAh
AAAh
AAAh
AAAh
555h
555h
555h
555h
555h
555h
555h
3rd bus cycle
AAA
555
®
Data
F0h
A0h
90h
90h
90h
20h
80h
80h
Read Address
Device code
Device code
MFR code
protection
protection
Program
Address
XXX02h
XXX04h
Address
Sector
Sector
AAAh
AAAh
555h
555h
01h
02h
00h
4th bus cycle
22DAh (T)
225Bh (B)
Program
DAh (T)
5Bh (B)
0001h = protected
0000h =
unprotected
0001h=protected
0000h=unprotected
0052h
Read
Data
Data
Data
AAh
AAh
52h
Address
2AAh
2AAh
5th bus cycle
555h
555h
Data
55h
55h
DID 11-40002-A. 10/19/00
October 2000
Address
Address
Sector
AAAh
6th bus cycle
555h
Data
10h
30h