HN58V65A Hitachi Semiconductor, HN58V65A Datasheet - Page 17
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HN58V65A
Manufacturer Part Number
HN58V65A
Description
64 k EEPROM (8-kword x 8-bit) Ready/Busy function/ RES function (HN58V66A)
Manufacturer
Hitachi Semiconductor
Datasheet
1.HN58V65A.pdf
(27 pages)
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Toggle Bit
This device provide another function to determine the internal programming cycle. If the EEPROM is
set to read mode during the internal programming cycle, I/O6 will charge from “1” to “0” (toggling) for
each read. When the internal programming cycle is finished, toggling of I/O6 will stop and the device
can be accessible for next read or program.
Toggle Bit Waveform
Notes: 1. I/O6 begining state is “1”.
Address
I/O6
WE
OE
CE
2. I/O6 ending state will vary.
3. See AC read characteristics.
4. Any address location can be used, but the address must be fixed.
Din
t
OEH
t
t
CE
OE
*3
*3
Dout
*1
HN58V65A Series, HN58V66A Series
Dout
t
WC
Dout
*2
Dout
*2
t
DW
*4
t
OES
Next mode