HN58S256AT-20 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HN58S256AT-20

256 k EEPROM (32-kword × 8-bit)

Hitachi -> Renesas Electronics 

HN58S256A 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 beginning state is “1”.

2. I/O6 ending state will vary.

3. See AS read characteristics.

4. Any address location can be used, but the address must be fixed.

Address

CE

tCE *3

Next mode

*4

WE

OE

I/O6

tOEH

Din

tOE*3

*1

Dout

Dout

tWC

*2

Dout

tOES

*2

Dout

tDW

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