X28C256D-20 XICOR [Xicor Inc.], X28C256D-20 Datasheet - Page 15

• Manufacturer Part Number: X28C256D-20
• Description: 5 Volt, Byte Alterable E2PROM
• Manufacturer: XICOR [Xicor Inc.]

X28C256
DATA Polling Timing Diagram
Toggle Bit Timing Diagram
Note: (12) Polling operations are by definition read cycles and are therefore subject to read cycle timings.
ADDRESS
I/O 6
WE
OE
CE
I/O 7
WE
OE
CE
* Starting and ending state of I/O 6 will vary, depending upon actual t WC .
An
HIGH Z
t OEH
(12)
D IN =X
*
(12)
t OEH
t WC
An
D OUT =X
t WC
15
*
An
t OES
D OUT =X
t DW
t DW
t OES
3855 FHD F09
3855 FHD F10