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CAT5127 Folha de dados(PDF) 6 Page - Catalyst Semiconductor

Nome de Peças. CAT5127
descrição  32-Tap Digitally Programmable Potentiometer (DPP TM)
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Fbricantes  CATALYST [Catalyst Semiconductor]
Página de início  http://www.catalyst-semiconductor.com
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CAT5127 Folha de dados(HTML) 6 Page - Catalyst Semiconductor

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CAT5127, CAT5129
Doc. No. 2127 Rev. A
6
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
AC TEST CONDITIONS
VCC Range
2.5V ≤ VCC ≤ 5.5V
Input Pulse Levels
0.2VCC to 0.7VCC
Input Rise and Fall Times
10ns
Input Reference Levels
0.5VCC
AC OPERATING CHARACTERISTICS
VCC = +2.5V to +5.5V, VH = VCC, VL = 0V, unless otherwise specified
Symbol
Parameter
Min
Typ(1)
Max
Units
tCI
CS
¯¯ to INC
¯¯¯ Setup
100
ns
tDI
U/D
¯ to INC
¯¯¯ Setup
50
ns
tID
U/D
¯ to INC
¯¯¯ Hold
100
ns
tIL
INC
¯¯¯ LOW Period
250
ns
tIH
INC
¯¯¯ HIGH Period
250
ns
tIC
INC
¯¯¯ Inactive to CS Inactive
1
µs
tCPH
CS
¯¯ Deselect Time (NO STORE)
100
ns
tCPH
CS
¯¯ Deselect Time (STORE)
10
ms
tIR
INC
¯¯¯ to RH Change
1
5
µs
tCYC
INC
¯¯¯ Cycle Time
1
µs
tR, tF
(2)
INC
¯¯¯ Input Rise and Fall Time
500
µs
tPU
(2)
Power-up to Wiper Stable
1
ms
tWR
Store Cycle
2
5
ms
A.C. TIMING
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.
CS
INC
U/D
RH
tCI
tCYC
tIL
MI(3)
90%
90%
10%
(store)
tF
tR
tIR
tID
tDI
tIH
tCPH
tIC


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