X28HC256D-12 XICOR [Xicor Inc.], X28HC256D-12 Datasheet - Page 13

• Manufacturer Part Number: X28HC256D-12
• Description: 5 Volt, Byte Alterable E2PROM
• Manufacturer: XICOR [Xicor Inc.]

X28HC256
Write Cycle Limits
WE Controlled Write Cycle
Notes: (6) Typical values are for T
Symbol
DATA OUT
ADDRESS
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WC (7)
AS
AH
CS
CH
CW
OES
OEH
WP
WPH (8)
DV
DS
DH
DW (8)
BLC
DATA IN
(7) t
(8) t
WE
OE
CE
time the device requires to automatically complete the internal write operation.
WC
WPH
is the minimum cycle time to be allowed from the system perspective unless polling techniques are used. It is the maximum
and t
DW
are periodically sampled and not 100% tested.
Write Cycle Time
Address Setup Time
Address Hold Time
Write Setup Time
Write Hold Time
CE Pulse Width
OE HIGH Setup Time
OE HIGH Hold Time
WE Pulse Width
WE HIGH Recovery (page write only)
Data Valid
Data Setup
Data Hold
Delay to Next Write after Polling is True
Byte Load Cycle
A
t AS
= 25 C and nominal supply voltage.
t OES
t CS
Parameter
t AH
t WP
t DS
13
DATA VALID
t OEH
HIGH Z
t WC
t DH
t CH
Min.
0.15
50
50
50
50
50
10
0
0
0
0
0
0
Typ.
3
(6)
Max.
100
5
1
3859 FHD F06
3859 PGM T11.3
Units
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s