X28HC256D-90 INTERSIL [Intersil Corporation], X28HC256D-90 Datasheet - Page 13

• Manufacturer Part Number: X28HC256D-90
• Description: 5V, Byte Alterable EEPROM
• Manufacturer: INTERSIL [Intersil Corporation]

Write Cycle Limits
NOTES:
WE Controlled Write Cycle
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
6. Typical values are for T
7. t
8. t
DATA OUT
requires to automatically complete the internal write operation.
ADDRESS
WC
WPH
DATA IN
is the minimum cycle time to be allowed from the system perspective unless polling techniques are used. It is the maximum time the device
and t
WE
OE
CE
DW
are periodically sampled and not 100% tested.
PARAMETER
A
= +25°C and nominal supply voltage.
13
t
AS
t
OES
t
CS
t
AH
t
WP
X28HC256
t
t
t
WPH
WC
DW
SYMBOL
t
DS
t
t
t
(Note 7)
(Note 8)
t
t
t
t
t
OES
OEH
t
t
t
t
BLC
(Note 8)
CW
WP
AS
AH
CS
CH
DV
DS
DH
DATA VALID
t
OEH
HIGH Z
0.15
MIN
50
50
50
50
50
10
0
0
0
0
0
0
t
t
t
WC
DH
CH
(Note 6)
TYP
3
MAX
100
5
1
UNIT
ms
May 7, 2007
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
µs
µs
FN8108.2