CAT25010, CAT25020, CAT25040
A.C. CHARACTERISTICS
T
A
= -40°C to +125°C, unless otherwise specified.
(1)
V
CC
= 1.8V-5.5V
Symbol
f
SCK
t
SU
t
H
t
WH
t
WL
t
LZ
t
RI(2)
t
FI(2)
t
HD
t
CD
t
V
t
HO
t
DIS
t
HZ
t
CS
t
CSS
t
CSH
t
WPS
t
WPH
t
WC(4)
Parameter
Clock Frequency
Data Setup Time
Data Hold Time
SCK High Time
SCK Low Time
¯¯¯¯¯
HOLD to Output Low Z
Input Rise Time
Input Fall Time
¯¯¯¯¯
HOLD Setup Time
¯¯¯¯¯
HOLD Hold Time
Output Valid from Clock Low
Output Hold Time
Output Disable Time
¯¯¯¯¯
HOLD to Output High Z
¯¯
CS High Time
¯¯
CS Setup Time
¯¯
CS Hold Time
¯¯¯ Setup Time
WP
¯¯¯ Hold Time
WP
Write Cycle Time
50
50
50
10
10
5
0
50
100
15
15
15
10
10
5
0
10
75
0
20
25
Min.
DC
30
30
75
75
50
2
2
0
10
40
Max.
5
V
CC
= 2.5V-5.5V
T
A
= -40°C to +85°C
Min.
DC
20
20
40
40
25
2
2
Max.
10
Units
MHz
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
Power-Up Timing
(2)(3)
Symbol
t
PUR
t
PUW
Parameter
Power-up to Read Operation
Power-up to Write Operation
Max.
1
1
Units
ms
ms
Notes:
(1) AC Test Conditions:
Input Pulse Voltages: 0.3V
CC
to 0.7V
CC
Input rise and fall times:
≤
10ns
Input and output reference voltages: 0.5V
CC
Output load: current source I
OL max
/I
OH max
; C
L
= 50pF
(2) This parameter is tested initially and after a design or process change that affects the parameter.
(3) t
PUR
and t
PUW
are the delays required from the time V
CC
is stable until the specified operation can be initiated.
¯¯
(4) t
WC
is the time from the rising edge of CS after a valid write sequence to the end of the internal write cycle.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc. No. MD-1006 Rev. T
CATALYST [ CATALYST SEMICONDUCTOR ]
