参数资料
型号: AT45DB021B-TC
厂商: ATMEL CORP
元件分类: DRAM
英文描述: 2-megabit 2.7-volt Only DataFlash??
中文描述: 2M X 1 FLASH 2.7V PROM, PDSO28
封装: 18 X 13.40 MM, PLASTIC, MO-183, TSOP1-28
文件页数: 11/33页
文件大小: 261K
代理商: AT45DB021B-TC
11
AT45DB021B
1937F
DFLSH
10/02
Note:
r = Reserved Bit
P = Page Address Bit
B = Byte/Buffer Address Bit
x = Don
t Care
Table 4.
Detailed Bit-level Addressing Sequence
Opcode
Opcode
Address Byte
Address Byte
Address Byte
Additional
Don’tCare
Bytes
Required
50H
0 1 0 1 0 0 0 0 r
r
r
r
r
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
x
x
x
N/A
52H
0 1 0 1 0 0 1 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
B
B
B
B
B
B
B
B
B
4 Bytes
53H
0 1 0 1 0 0 1 1 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
54H
0 1 0 1 0 1 0 0 x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
B
B
B
B
B
B
B
B
B
1 Byte
55H
0 1 0 1 0 1 0 1 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
56H
0 1 0 1 0 1 1 0 x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
B
B
B
B
B
B
B
B
B
1 Byte
57H
0 1 0 1 0 1 1 1
N/A
N/A
N/A
N/A
58H
0 1 0 1 1 0 0 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
59H
0 1 0 1 1 0 0 1 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
60H
0 1 1 0 0 0 0 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
61H
0 1 1 0 0 0 0 1 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
68H
0 1 1 0 1 0 0 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
B
B
B
B
B
B
B
B
B
4 Bytes
81H
1 0 0 0 0 0 0 1 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
82H
1 0 0 0 0 0 1 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
B
B
B
B
B
B
B
B
B
N/A
83H
1 0 0 0 0 0 1 1 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
84H
1 0 0 0 0 1 0 0 x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
B
B
B
B
B
B
B
B
B
N/A
85H
1 0 0 0 0 1 0 1 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
B
B
B
B
B
B
B
B
B
N/A
86H
1 0 0 0 0 1 1 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
87H
1 0 0 0 0 1 1 1 x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
B
B
B
B
B
B
B
B
B
N/A
88H
1 0 0 0 1 0 0 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
89H
1 0 0 0 1 0 0 1 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
x
x
x
x
x
x
x
x
x
N/A
D2H
1 1 0 1 0 0 1 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
B
B
B
B
B
B
B
B
B
4 Bytes
D4H
1 1 0 1 0 1 0 0 x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
B
B
B
B
B
B
B
B
B
1 Byte
D6H
1 1 0 1 0 1 1 0 x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
B
B
B
B
B
B
B
B
B
1 Byte
D7H
1 1 0 1 0 1 1 1
N/A
N/A
N/A
N/A
E8H
1 1 1 0 1 0 0 0 r
r
r
r
r
P
P
P
P
P
P
P
P
P
P
B
B
B
B
B
B
B
B
B
4 Bytes
R
R
R
R
R
P
P
P
P
P
P
P
P
P
P
B
B
B
B
B
B
B
B
B
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