参数资料
型号: AT45DB021
厂商: Atmel Corp.
英文描述: 2-Megabit 2.7-volt Only Serial DataFlash
中文描述: 2兆位2.7伏,只有序列的DataFlash
文件页数: 13/18页
文件大小: 201K
代理商: AT45DB021
AT45DB021
13
Table 1
Table 1.
Main Memory
Page Read
Buffer 1
Read
Buffer 2
Read
Main Memory
Page to Buffer 1
Transfer
Main Memory
Page to Buffer 2
Transfer
Opcode
55H
0
1
0
1
0
1
0
1
r
r
r
r
r
PA9
PA8
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
X
X
X
X
X
X
X
X
X
Main Memory
Page to Buffer 1
Compare
Main Memory
Page to Buffer 2
Compare
Buffer 1
Write
Buffer 2
Write
52H
0
1
0
1
0
0
1
0
54H
0
1
0
1
0
1
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BFA8
BFA7
BFA6
BFA5
BFA4
BFA3
BFA2
BFA1
BFA0
X
X
X
X
X
X
X
X
56H
0
1
0
1
0
1
1
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BFA8
BFA7
BFA6
BFA5
BFA4
BFA3
BFA2
BFA1
BFA0
X
X
X
X
X
X
X
X
53H
0
1
0
1
0
0
1
1
60H
0
1
1
0
0
0
0
0
61H
0
1
1
0
0
0
0
1
84H
1
0
0
0
0
1
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BFA8
BFA7
BFA6
BFA5
BFA4
BFA3
BFA2
BFA1
BFA0
87H
1
0
0
0
0
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BFA8
BFA7
BFA6
BFA5
BFA4
BFA3
BFA2
BFA1
BFA0
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
PA9
PA8
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
BA8
BA7
BA6
BA5
BA4
BA3
BA2
BA1
BA0
X
X
X
X
X
X
X
X
PA9
PA8
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
X
X
X
X
X
X
X
X
X
PA9
PA8
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
X
X
X
X
X
X
X
X
X
PA9
PA8
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
X
X
X
X
X
X
X
X
X
X (Don’t Care)
r (reserved bits)
X (64th bit)
相关PDF资料
PDF描述
AT45DB021-JC 2-Megabit 2.7-volt Only Serial DataFlash
AT45DB021-JI 2-Megabit 2.7-volt Only Serial DataFlash
AT45DB021-RC 2-Megabit 2.7-volt Only Serial DataFlash
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AT45DB021A-RI 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:2-megabit 2.7-volt Only Serial DataFlash