HN58V65A_15 Datasheet, PDF (20/30 Pages) Renesas Technology Corp – 64 k EEPROM (8-kword × 8-bit) Ready/Busy Function, RES Function (HN58V66A)

HN58V65A Series, HN58V66A Series
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”.
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.
Address
CE
t_CE ^*3
Next mode
*4
WE
t_OE^*3
OE
t_OEH
*1
I/O6
Din
Dout
Dout
t_WC
*2
Dout
t_OES
*2
Dout
t_DW
Rev.3.00, Dec. 04.2003, page 18 of 26