AS29F040 Ver la hoja de datos (PDF) - Alliance Semiconductor
Número de pieza
componentes Descripción
Fabricante
AS29F040 Datasheet PDF : 18 Pages
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Sector
0
1
2
3
4
5
6
7
Equal sector architecture
Addresses
Size (Kbytes)
00000h–0FFFFh
64
10000h–1FFFFh
64
20000h–2FFFFh
64
30000h–3FFFFh
64
40000h–4FFFFh
64
50000h–5FFFFh
64
60000h–6FFFFh
64
70000h–7FFFFh
64
ID sector address
A18
A17
A16
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
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Mode
A18–A16 A9
A8–A7 A6
A5–A2
A1
A0
Code on DQ0–DQ7
MFG code (Alliance
X
Semiconductor)
VID
X
L
X
L
L
52h
Device code
Sector protection
X
Sector
address
VID
X
L
VID
Sector
address
L
X
L
H
A4h
Sector
address
H
L
01h protected
00h unprotected
L = Low (<VIL); H = High (>VIH); X = Don’t care.
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Command
sequence
Required
bus cycles
1st bus write
cycle
Address Data
2nd bus write
cycle
Address Data
3rd bus write
cycle
Address Data
4th bus read/write
cycle
Address
Data
5th bus write
cycle
Address Data
6th bus write
cycle
Address Data
Reset/read
Read Read
1
XXXXh F0h
Address Data
Reset/read
4
5555h AAh 2AAAh 55h 5555h F0h
Read
Read
Address
Data
00h
MFR code
52h
01h
Autoselect ID
A4h
4
5555h AAh 2AAAh 55h 5555h 90h Device code
read
XXX02h
Sector
protection
01 = protected
00 = unprotected
Program
Program Program
4
5555h AAh 2AAAh 55h 5555h A0h
Address
Data
Chip erase
6
5555h AAh 2AAAh 55h 5555h 80h 5555h
AAh 2AAAh 55h 5555h 10h
Sector erase
Sector
6
5555h AAh 2AAAh 55h 5555h 80h 5555h
AAh
2AAAh 55h Address 30h
Sector erase
suspend
1
XXXXh B0h
Sector erase
resume
1
XXXXh 30h
1 Bus operations defined in "Mode definitions," on page 3.
2 Reading from or programming to non-erasing sectors allowed in Erase Suspend mode.
3 Address bit A15 = X = Don’t care for all address commands except Program Address.
4 Address bit A16 = X = Don’t care for all address commands except Program Address and Sector Address.
5 Address bit A17 = X = Don’t care for all address commands except Program Address and Sector Address.
6 Address bit A18 = X = Don’t care for all address commands except Program Address and Sector Address.
7
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