HN58C256A Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HN58C256A

256k EEPROM (32-kword × 8-bit) Ready/Busy and RES function (HN58C257A)

Hitachi -> Renesas Electronics 

HN58C256A Series, HN58C257A 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 AC 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

14

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