收藏本站
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
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
93LC66XT/SN IC EEPROM 4KBIT 2MHZ 8SOIC
93LC86/P IC EEPROM 16KBIT 3MHZ 8DIP
94104-044LF 94104-044LF PCB MJ LOW PROFILE
94152-088LF CONN MOD JACK 8-8 VERT PCB SHLD
9436-7600 CONN SOCKET 36POS CLOSED END
94729-002LF 6POS SNAP-IN SP.MODJACK LF
94908-588LF 588LF C/P PCB M/J
94909-588LF 588LF LP PCB 8P
相关代理商/技术参数
93LC66BXT-E/SN 功能描述:电可擦除可编程只读存储器 256x16 Rot Pin RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
93LC66BXT-E/SNG 功能描述:电可擦除可编程只读存储器 256x16 Rot Pin Lead Free Package RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
93LC66BXT-I/SN 功能描述:电可擦除可编程只读存储器 256x16 Rot Pin RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
93LC66BXT-I/SNG 功能描述:电可擦除可编程只读存储器 256x16 Rot Pin Lead Free Package RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
93LC66C/S15K 制造商:Microchip Technology Inc 功能描述:4K, 512 X 8 OR 256 X 16 SERIAL - Gel-pak, waffle pack, wafer, diced wafer on film
93LC66C/W15K 制造商:Microchip Technology Inc 功能描述:4K, 512 X 8 OR 256 X 16 SERIAL - Gel-pak, waffle pack, wafer, diced wafer on film
93LC66C/WF15K 制造商:Microchip Technology Inc 功能描述:4K, 512 X 8 OR 256 X 16 SERIAL - Gel-pak, waffle pack, wafer, diced wafer on film
93LC66C-E/MS 功能描述:电可擦除可编程只读存储器 128x8 Or 64x16 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8