HN58C256AI Series

R10DS0218EJ0100 Rev.1.00

Page 10 of 16

Oct 07, 2013

Data Polling Timing Waveform

t

CE

t

OEH

t

WC

t

DW

t

OES

Address

CE

WE

OE

I/O7

t

OE

Din X

An

An

Dout

X

Dout X

*9

*9

An

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.

WE

t

OES

OE

CE

Dout

I/O6

Dout

Dout

Dout

Next mode

t

OE

t

CE

t

DW

t

WC

t

OEH

*1

*2

*2

Address

*3

*3

*4

Din