参数资料
| 型号： | 93C66A-E/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 9/38页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 4KBIT 2MHZ 8SOIC |
| 标准包装： | 100 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 4K (512 x 8) |
| 速度： | 2MHz |
| 接口： | Microwire 3 线串行 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
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93AA66A/B/C, 93LC66A/B/C, 93C66A/B/C
2.6
Erase/Write Disable and Enable
(EWDS/EWEN)
To protect against accidental data disturbance, the
EWDS instruction can be used to disable all erase/write
functions and should follow all programming opera-
The 93XX66A/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 Vcc is removed from the device.
tions. Execution of a READ instruction is independent of
both the EWEN and EWDS instructions.
FIGURE 2-5:
EWDS TIMING
T CSL
CS
CLK
DI
1
0
0
0
0
x
???
x
FIGURE 2-6:
EWEN TIMING
T CSL
CS
CLK
DI
1
0
0
1
1
x
???
x
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 2-7:
CS
CLK
READ TIMING
DI
1
1
0
An
? ? ?
A0
DO
High-Z
0
Dx
???
D0
Dx
???
D0
Dx
???
D0
? 2003-2011 Microchip Technology Inc.
DS21795E-page 9
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相关代理商/技术参数 |
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| 93C66AESNG | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4K Microwire Compatible Serial EEPROM |
| 93C66AEST | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4K Microwire Compatible Serial EEPROM |
| 93C66AESTG | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4K Microwire Compatible Serial EEPROM |
| 93C66A-I/CH | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K-16K Microwire Compatible Serial EEPROMs |
| 93C66A-I/MC | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K-16K Microwire Compatible Serial EEPROMs |
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