CAT25C128/256
A.C. CHARACTERISTICS (CAT25C256)
Limits
=
1.8V-6.0V 2.5V-6.0V
Vcc=
VCC
VCC
2.7V-6.0V
Min. Max. Min. Max. Min. Max. Min. Max. UNITS
=
VCC
4.5V-5.5V
=
Test
Conditions
SYMBOL PARAMETER
tSU
tH
Data Setup Time
Data Hold Time
500
500
100
100
250
250
0.2 DC
100
2
70
70
35
35
80
80
DC
ns
ns
ns
ns
MHz
ns
µs
µs
ns
ns
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
tWH
tWL
fSCK
tLZ
SCK High Time
2500
2500
DC
200
200
2.0 DC
50
SCK Low Time
Clock Frequency
HOLD to Output Low Z
Input Rise Time
2.5
50
2
5
50
2
(1)
tRI
2
(1)
tFI
Input Fall Time
2
2
2
2
CL = 50pF
tHD
HOLD Setup Time
HOLD Hold Time
Write Cycle Time
Output Valid from Clock Low
Output Hold Time
Output Disable Time
HOLD to Output High Z
CS High Time
250
250
100
100
10
100
100
10
40
40
tCD
tWC
tV
10
5
250
0
200
0
200
80
tHO
tDIS
tHZ
0
0
250
150
100
100
100
50
200
100
100
100
100
50
200
100
100
50
tCS
100
100
100
50
100
100
100
50
tCSS
tCSH
tWPS
tWPH
CS Setup Time
CS Hold Time
WP Setup Time
WP Hold Time
50
50
50
50
NOTE:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
Doc. No. 25088-00 1/01
4
CATALYST [ CATALYST SEMICONDUCTOR ]
