CAT25128
http://onsemi.com
5
Table 8. A.C. CHARACTERISTICS – NEW PRODUCT (Rev E) (V
CC
= 1.8 V to 5.5 V, T
A
= −40°C to +85°C (Industrial) and
V
CC
= 2.5 V to 5.5 V, T
A
= −40°C to +125°C, unless otherwise specified.) (Note 11)
Symbol
Parameter
V
CC
= 1.8 V − 5.5 V
−405C to +855C
V
CC
= 2.5 V − 5.5 V
−405C to +1255C
V
CC
= 4.5 V − 5.5 V
−405C to +855C
Units
Min Max Min Max Min Max
f
SCK
Clock Frequency DC 5 DC 10 DC 20 MHz
t
SU
Data Setup Time 20 10 5 ns
t
H
Data Hold Time 20 10 5 ns
t
WH
SCK High Time 75 40 20 ns
t
WL
SCK Low Time 75 40 20 ns
t
LZ
HOLD to Output Low Z 50 25 25 ns
t
RI
(Note 12) Input Rise Time 2 2 2
ms
t
FI
(Note 12) Input Fall Time 2 2 2
ms
t
HD
HOLD Setup Time 0 0 0 ns
t
CD
HOLD Hold Time 10 10 5 ns
t
V
Output Valid from Clock Low 75 40 20 ns
t
HO
Output Hold Time 0 0 0 ns
t
DIS
Output Disable Time 50 20 20 ns
t
HZ
HOLD to Output High Z 100 25 25 ns
t
CS
CS High Time 80 40 20 ns
t
CSS
CS Setup Time 30 30 15 ns
t
CSH
CS Hold Time 30 30 20 ns
t
CNS
CS Inactive Setup Time 20 20 15 ns
t
CNH
CS Inactive Hold Time 20 20 15 ns
t
WPS
WP Setup Time 10 10 10 ns
t
WPH
WP Hold Time 10 10 10 ns
t
WC
(Note 13) Write Cycle Time 5 5 5 ms
11. AC Test Conditions:
Input Pulse Voltages: 0.3 V
CC
to 0.7 V
CC
Input rise and fall times: ≤ 10 ns
Input and output reference voltages: 0.5 V
CC
Output load: current source I
OL
max
/I
OH
max
; C
L
= 30 pF
12.This parameter is tested initially and after a design or process change that affects the parameter.
13.t
WC
is the time from the rising edge of CS after a valid write sequence to the end of the internal write cycle.
Table 9. POWER−UP TIMING (Notes 12, 14)
Symbol Parameter Min Max Units
t
PUR
Power−up to Read Operation 0.1 1 ms
t
PUW
Power−up to Write Operation 0.1 1 ms
14.t
PUR
and t
PUW
are the delays required from the time V
CC
is stable until the specified operation can be initiated.
