參數(shù)資料
型號(hào): S-29630A
廠商: Seiko Instruments Inc.
英文描述: 32Kbit Serial EEPROM(32K位串行EEPROM)
中文描述: 32Kbit串行EEPROM(32K的位串行EEPROM的)
文件頁數(shù): 10/44頁
文件大小: 178K
代理商: S-29630A
CMOS SERIAL E
2
PROM
S-29530A / 29630A
9
3.
Write enable (EWEN) and Write disable (EWDS)
The EWEN instruction puts the S-29530A / 630A series into write enable mode, which accepts WRITE and ERASE
instructions. The EWDS instruction puts the S-29530A / 630A series into write disable mode, which refuses WRITE and
ERASE
The S-29530A / 630A series powers on in write disable mode, which protects data against unexpected, erroneous write
operations caused by noise and/or CPU malfunctions. It should be kept in write disable mode except when performing
write operations.
CS
instructions.
X
X
EWEN=
EWDS=
1
0
1
0
13
12
11
8
7
6
5
4
3
2
1
SK
10
9
0
DO
DI
0
Hi-Z
X8
Figure 10
EWEN/EWDS Timing (S-29530A)
EWEN=
EWDS=
1
0
1
0
15
CS
12
11
8
7
6
5
4
3
2
1
SK
10
9
0
DI
DI
0
14
13
Hi-Z
X
X
X10
Figure 11
EWEN/EWDS Timing (S-29630A)
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