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CAT5127_0708 Datasheet, PDF (7/13 Pages) Catalyst Semiconductor – 32-Tap Digitally Programmable Potentiometer (DPP™)
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CAT5127, CAT5129
AC TEST CONDITIONS
VCC Range
Input Pulse Levels
Input Rise and Fall Times
Input Reference Levels
2.5V ≤ VCC ≤ 5.5V
0.2VCC to 0.7VCC
10ns
0.5VCC
AC OPERATING CHARACTERISTICS
VCC = +2.5V to +5.5V, VH = VCC, VL = 0V, unless otherwise specified
Symbol Parameter
Min
tCI
C¯¯S to I¯N¯C¯ Setup
100
tDI
U/D¯ to I¯N¯C¯ Setup
50
tID
U/D¯ to I¯N¯C¯ Hold
100
tIL
I¯N¯C¯ LOW Period
250
tIH
I¯N¯C¯ HIGH Period
250
tIC
I¯N¯C¯ Inactive to CS Inactive
1
tCPH C¯¯S Deselect Time (NO STORE)
100
tCPH C¯¯S Deselect Time (STORE)
10
tIR
I¯N¯C¯ to RH Change
tCYC I¯N¯C¯ Cycle Time
1
tR, tF(2) I¯N¯C¯ Input Rise and Fall Time
tPU(2) Power-up to Wiper Stable
tWR Store Cycle
Typ(1)
1
2
Max
5
500
1
5
Units
ns
ns
ns
ns
ns
µs
ns
ms
µs
µs
µs
ms
ms
A.C. TIMING
CS
tCI
INC
U/D
tCYC
tIL
tIH
tIC
tDI tID
(store)
tCPH
90%
90%
10%
tF
tR
tIR
RH
MI(3)
Notes:
(1) Typical values are for TA = 25ºC and nominal supply voltage.
(2) This parameter is periodically sampled and not 100% tested.
(3) 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.
7
Characteristics subject to change without notice
Doc. No. MD-2127 Rev. C
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