参数资料
型号: CAT28C256PA-15
元件分类: PROM
英文描述: 32K X 8 EEPROM 5V, 150 ns, PDIP28
封装: PLASTIC, DIP-28
文件页数: 11/12页
文件大小: 525K
代理商: CAT28C256PA-15
CAT28C256
8
Doc. No. 1004, Rev. D
WE
CE
OE
I/O6
tOEH
tOE
tOES
tWC
(1)
ADDRESS
CE
WE
OE
I/O7
DIN = X
DOUT = X
tOE
tOEH
tWC
tOES
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 com-
plete. 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 of the CAT28C256,
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.
Figure 7. DATA Polling
Figure 8. Toggle Bit
Note:
(1)
Beginning and ending state of I/O6 is indeterminate.
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相关代理商/技术参数
参数描述
CAT28C256PI-12 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 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
CAT28C256PI-15 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 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
CAT28C256T13-12 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 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
CAT28C256T13-15 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 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
CAT28C256T13-15-T 制造商:ON Semiconductor 功能描述:EEPROM Parallel 256K-Bit 32K x 8 5V 28-Pin TSOP T/R