參數(shù)資料
型號(hào)： 93C56AOT
廠商： Microchip Technology Inc.
英文描述： LJT 18C 18#20 SKT RECP
中文描述： 2K微絲兼容串行EEPROM
文件頁(yè)數(shù)： 8/24頁(yè)
文件大?。?/td> 405K
代理商： 93C56AOT
93AA56A/B/C, 93LC56A/B/C, 93C56A/B/C
DS21794B-page 8
2003 Microchip Technology Inc.
2.6
ERASE/WRITE DISABLE And ENABLE (EWDS/EWEN)
The 93XX56A/B/C powers up in the ERASE/WRITE
Disable (
EWDS
) state. All Programming modes must be
preceded by an ERASE/WRITE Enable (
EWEN
) instruc-
tion. Once the
EWEN
instruction is executed, program-
ming remains enabled until an
EWDS
instruction is
executed or Vcc 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
operations. Execution of a
READ
instruction is indepen-
dent of both the
EWEN
and
EWDS
instructions.
FIGURE 2-5:
EWDS TIMING
FIGURE 2-6:
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 spec-
ified 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 2-7:
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
相關(guān)PDF資料
PDF描述
93AA56AP 2K Microwire Compatible Serial EEPROM
93AA56ASN 2K Microwire Compatible Serial EEPROM
93AA56AST 2K Microwire Compatible Serial EEPROM
93LC56C 2K Microwire Compatible Serial EEPROM
93LC66B 4K 2.5V Microwire Serial EEPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
93C56AP 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2K Microwire Compatible Serial EEPROM
93C56API 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microwire Serial EEPROM
93C56APM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microwire Serial EEPROM
93C56ASN 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2K Microwire Compatible Serial EEPROM
93C56AST 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:2K Microwire Compatible Serial EEPROM
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