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参数资料
| 型号： | CAT28C65BKI-12 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | PROM |
| 英文描述： | 8K X 8 EEPROM 5V, 120 ns, PDSO28 |
| 封装： | SOIC-28 |
| 文件页数： | 13/13页 |
| 文件大小： | 418K |
| 代理商： | CAT28C65BKI-12 |
CAT28C65B
9
Doc. No. 1009, Rev. E
WE
CE
OE
I/O6
tOEH
tOE
tOES
tWC
(1)
ADDRESS
CE
WE
OE
I/O7
DIN = X
DOUT = X
tOE
tOEH
tWC
tOES
(which can be loaded in any order) during the first and
subsequent write cycles. Each successive byte load
cycle must begin within tBLC MAX of the rising edge of the
preceding WE pulse. There is no page write window
limitation as long as WE is pulsed low within tBLC MAX.
Upon completion of the page write sequence, WE must
stay high a minimum of tBLC MAX for the internal automatic
program cycle to commence. This programming cycle
consists of an erase cycle, which erases any data that
existed in each addressed cell, and a write cycle, which
writes new data back into the cell. A page write will only
write data to the locations that were addressed and will
not rewrite the entire page.
DATA Polling
DATA polling is provided to indicate the completion of
write cycle. Once a byte write or page write cycle is
initiated, attempting to read the last byte written will
output the complement of that data on I/O7 (I/O0–I/O6
are indeterminate) until the programming cycle is
complete. Upon completion of the self-timed write cycle,
all I/O’s will output true data during a read cycle.
Toggle Bit
In addition to the DATA Polling feature, the device offers
an additional method for determining the completion of
a write cycle. While a write cycle is in progress, reading
data from the device will result in I/O6 toggling between
one and zero. However, once the write is complete, I/O6
stops toggling and valid data can be read from the
device.
Ready/BUSY (RDY/BUSY)
The RDY/BUSY pin is an open drain output which
indicates device status during programming. It is pulled
low during the write cycle and released at the end of
programming. Several devices may be OR-tied to the
same RDY/BUSY line.
Figure 7. DATA Polling
Figure 8. Toggle Bit
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| CAT28C65BW-90 | 8K X 8 EEPROM 5V, 90 ns, PDSO28 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT28C65BKI-90 | 功能描述:电可擦除可编程只读存储器 (8kx8) 64K 5V 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 |
| CAT28C65BL12 | 制造商:ON Semiconductor 功能描述: |
| CAT28C65BL-12 | 功能描述:电可擦除可编程只读存储器 (8kx8) 64K 5V 120ns 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 |
| CAT28C65BL-90 | 功能描述:电可擦除可编程只读存储器 (8kx8) 64K 5V 90ns 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 |
| CAT28C65BLA-12 | 功能描述:电可擦除可编程只读存储器 (8kx8) 64K 5V 120ns 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 |
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