LH28F020SU-N データシートの表示（PDF） - Sharp Electronics
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LH28F020SU-N Datasheet PDF : 31 Pages
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2M (256K × 8) Flash Memory
MEMORY MAP
LH28F020SU-N
3FFFFH
3C000H
3BFFFH
38000H
37FFFH
34000H
33FFFH
30000H
2FFFFH
2C000H
2BFFFH
28000H
27FFFH
24000H
23FFFH
20000H
1FFFFH
1C000H
1BFFFH
18000H
17FFFH
14000H
13FFFH
10000H
0FFFFH
0C000H
0BFFFH
08000H
07FFFH
04000H
03FFFH
00000H
16KB BLOCK
15
16KB BLOCK
14
16KB BLOCK
13
16KB BLOCK
12
16KB BLOCK
11
16KB BLOCK
10
16KB BLOCK
9
16KB BLOCK
8
16KB BLOCK
7
16KB BLOCK
6
16KB BLOCK
5
16KB BLOCK
4
16KB BLOCK
3
16KB BLOCK
2
16KB BLOCK
1
16KB BLOCK
0
28F020SUN80-3
Figure 4. Chip Memory Map
BUS OPERATIONS, COMMANDS AND STATUS REGISTER DEFINITIONS
Bus Operations
MODE
CE » OE » WE
A0 DQ0-7 NOTE
Read
VIL
VIL
VIH
X
DOUT
1
Output Disable
VIL
VIH
VIH
X High-Z 1
Standby
VIH
X
X
X High-Z 1
Manufacturer ID VIL
VIL
VIH
VIL
B0H
2
Device ID
VIL
VIL
VIH
VIH
ID
2
Write
VIL
VIH
VIL
X
DIN
1, 3
NOTES:
1. X can be VIH or VIL for address or control pins, which is either VOL or VOH.
2. A0 at VIL provide manufacturer ID codes. A0 at VIH provide device ID codes.
Device ID Code = 30H. All other addresses are set to zero.
3. Commands for different Erase operations, Data Write operations of Lock-Block
operations can only be successfully completed when VPP = VPPH.
5
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