参数资料
型号: CAT28LV64G-25T
厂商: ON Semiconductor
文件页数: 8/15页
文件大小: 0K
描述: IC EEPROM 64KBIT 250NS 32PLCC
产品变化通告: Product Discontinuation 30/Sept/2011
标准包装: 500
格式 - 存储器: EEPROMs - 并行
存储器类型: EEPROM
存储容量: 64K (8K x 8)
速度: 250ns
接口: 并联
电源电压: 3 V ~ 3.6 V
工作温度: 0°C ~ 70°C
封装/外壳: 32-LCC(J 形引线)
供应商设备封装: 32-PLCC(11.43x13.97)
包装: 带卷 (TR)
其它名称: 28LV64G-25T
CAT28LV64
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/O 7 (I/O 0 –I/O 6 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.
ADDRESS
CE
WE
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/O 6 toggling between one and
zero. However, once the write is complete, I/O 6 stops
toggling and valid data can be read from the device.
t OEH
t OE
t OES
OE
t WC
I/O7
D IN = X
D OUT = X
D OUT = X
Figure 8. DATA Polling
WE
CE
OE
I/O 6
t OEH
t OE
(Note 13)
(Note 13)
t OES
t WC
Figure 9. Toggle Bit
13. Beginning and ending state of I/O 6 is indeterminate.
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