參數(shù)資料
型號: 93AA76A_06
廠商: Microchip Technology Inc.
英文描述: 8K Microwire Compatible Serial EEPROM
中文描述: 8K的微絲兼容串行EEPROM
文件頁數(shù): 8/28頁
文件大?。?/td> 372K
代理商: 93AA76A_06
93AA76A/B/C, 93LC76A/B/C, 93C76A/B/C
DS21796H-page 8
2006 Microchip Technology Inc.
2.6
Erase/Write Disable and Enable
(EWDS/EWEN)
The 93XX76A/B/C powers up in the Erase/Write
Disable (
EWDS
) state. All programming modes must be
preceded by an Erase/Write Enable (
EWEN
) instruction.
Once the
EWEN
instruction is executed, programming
remains enabled until an
EWDS
instruction is executed
or V
CC
is removed from the device.
To protect against accidental data disturbance, the
EWDS
instruction can be used to disable all erase/write
functions and should follow all programming opera-
tions. Execution of a
READ
instruction is independent of
both the
EWEN
and
EWDS
instructions.
FIGURE 2-3:
EWDS TIMING
FIGURE 2-4:
EWEN TIMING
2.7
Read
The
READ
instruction outputs the serial data of the
addressed memory location on the DO pin. A dummy
zero bit precedes the 8-bit (If ORG pin is low or A-Version
devices) or 16-bit (If ORG pin is high or B-version
devices) output string.
The output data bits will toggle on the rising edge of the
CLK and are stable after the specified time delay (T
PD
).
Sequential read is possible when CS is held high. The
memory data will automatically cycle to the next register
and output sequentially.
FIGURE 2-5:
READ TIMING
CS
CLK
DI
1
0
0
0
0
x
x
T
CSL
1
x
CS
CLK
DI
0
0
1
1
x
T
CSL
CS
CLK
DI
DO
1
1
0
An
A0
High-Z
0
Dx
D0
Dx
D0
Dx
D0
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93AA76A-I/MS 功能描述:電可擦除可編程只讀存儲器 8k 1024 X 8 SERIAL EE,1.8V,IND RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
93AA76A-I/P 功能描述:電可擦除可編程只讀存儲器 8k 1024 X 8 SERIAL EE,1.8V,IND RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
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