X28C256 Datasheet, PDF (15/24 Pages) Xicor Inc. – 5 Volt, Byte Alterable E2PROM

X28C256
DATA Polling Timing Diagram⁽¹²⁾
ADDRESS
An
An
An
CE
WE
tOEH
OE
I/O7
DIN=X
Toggle Bit Timing Diagram⁽¹²⁾
CE
DOUT=X
tWC
tOES
tDW
DOUT=X
3855 FHD F09
WE
tOEH
OE
I/O6
HIGH Z
*
*
tWC
* Starting and ending state of I/O6 will vary, depending upon actual tWC.
Note: (12) Polling operations are by definition read cycles and are therefore subject to read cycle timings.
tOES
tDW
3855 FHD F10
15