CAT5127, CAT5129
AC TEST CONDITIONS
V
CC
Range
Input Pulse Levels
Input Rise and Fall Times
Input Reference Levels
2.5V
≤
V
CC
≤
5.5V
0.2V
CC
to 0.7V
CC
10ns
0.5V
CC
AC OPERATING CHARACTERISTICS
V
CC
= +2.5V to +5.5V, V
H
= V
CC
, V
L
= 0V, unless otherwise specified
Symbol
t
CI
t
DI
t
ID
t
IL
t
IH
t
IC
t
CPH
t
CPH
t
IR
t
CYC
t
R
, t
F(2)
t
PU(2)
t
WR
Parameter
¯¯
¯¯¯
CS to INC Setup
¯ ¯¯¯
U/D to INC Setup
¯ ¯¯¯
U/D to INC Hold
¯¯¯
INC LOW Period
¯¯¯
INC HIGH Period
¯¯¯
INC Inactive to CS Inactive
¯¯
CS Deselect Time (NO STORE)
¯¯
CS Deselect Time (STORE)
¯¯¯
INC to R
H
Change
¯¯¯
INC Cycle Time
¯¯¯
INC Input Rise and Fall Time
Power-up to Wiper Stable
Store Cycle
2
Min
100
50
100
250
250
1
100
10
1
1
500
1
5
5
Typ(1)
Max
Units
ns
ns
ns
ns
ns
µs
ns
ms
µs
µs
µs
ms
ms
A.C. TIMING
CS
t
CYC
(store)
t
CI
INC
t
IL
t
IH
t
IC
t
CPH
90%
10%
90%
t
DI
U/D
t
ID
t
F
t
R
t
IR
RH
Notes:
(1)
(2)
(3)
MI(3)
Typical values are for T
A
= 25ºC and nominal supply voltage.
This parameter is periodically sampled and not 100% tested.
MI in the A.C. Timing diagram refers to the minimum incremental change in the W output due to a change in the wiper position.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
7
Doc. No. MD-2127 Rev. C
CATALYST [ CATALYST SEMICONDUCTOR ]
