Ac characteristics – Rainbow Electronics AT25640 User Manual
Page 4
4
AT25080/160/320/640
3260D–SEEPR–9/03
Note:
1. This parameter is characterized and is not 100% tested.
AC Characteristics
Applicable over recommended operating range from T
A
= -40
°
C to +125
°
C, V
CC
= As Specified,
CL = 1 TTL Gate and 100 pF (unless otherwise noted).
Symbol
Parameter
Voltage
Min
Max
Units
f
SCK
SCK Clock Frequency
4.5 - 5.5
2.7 - 5.5
0
0
3.0
2.1
MHz
t
RI
Input Rise Time
4.5 - 5.5
2.7 - 5.5
2
2
µs
t
FI
Input Fall Time
4.5 - 5.5
2.7 - 5.5
2
2
µs
t
WH
SCK High Time
4.5 - 5.5
2.7 - 5.5
133
200
ns
t
WL
SCK Low Time
4.5 - 5.5
2.7 - 5.5
133
200
ns
t
CS
CS High Time
4.5 - 5.5
2.7 - 5.5
250
250
ns
t
CSS
CS Setup Time
4.5 - 5.5
2.7 - 5.5
250
250
ns
t
CSH
CS Hold Time
4.5 - 5.5
2.7 - 5.5
250
250
ns
t
SU
Data In Setup Time
4.5 - 5.5
2.7 - 5.5
50
50
ns
t
H
Data In Hold Time
4.5 - 5.5
2.7 - 5.5
50
50
ns
t
HD
Hold Setup Time
4.5 - 5.5
2.7 - 5.5
100
100
t
CD
Hold Hold Time
4.5 - 5.5
2.7 - 5.5
200
200
ns
t
V
Output Valid
4.5 - 5.5
2.7 - 5.5
0
0
133
200
ns
t
HO
Output Hold Time
4.5 - 5.5
2.7 - 5.5
0
0
ns
t
LZ
Hold to Output Low Z
4.5 - 5.5
2.7 - 5.5
0
0
100
100
ns
t
HZ
Hold to Output High Z
4.5 - 5.5
2.7 - 5.5
100
100
ns
t
DIS
Output Disable Time
4.5 - 5.5
2.7 - 5.5
250
250
ns
t
WC
Write Cycle Time
4.5 - 5.5
2.7 - 5.5
5
10
ms
Endurance
(1)
5.0V, 25°C, Page Mode
1M
Write Cycles