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參數(shù)資料
| 型號： | X9313UMI |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | 50K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 32 POSITIONS, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 88K |
| 代理商： | X9313UMI |
X9313
Characteristics subject to change without notice.
6 of 10
REV 1.5 10/7/03
www.xicor.com
A.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified)
POWER UP AND DOWN REQUIREMENTS
The recommended power up sequence is to apply VCC/VSS rst, then the potentiometer voltages. During power-
up, the data sheet parameters for the DCP do not fully apply until 1 millisecond after VCC reaches its nal value.
The VCC ramp spec is always in effect. In order to prevent unwanted tap position changes, or an inadvertant store,
bring the CS and INC high before or concurrently with the VCC pin on powerup.
A.C. TIMING
Notes: (6) Typical values are for TA = 25°C and nominal supply voltage.
(7) This parameter is not 100% tested.
(8) MI in the A.C. timing diagram refers to the minimum incremental change in the VW output due to a change in the wiper position.
Symbol
Parameter
Limits
Unit
Min.
Typ.(6)
Max.
tCl
CS to INC setup
100
ns
tlD
INC HIGH to U/D change
100
ns
tDI
U/D to INC setup
2.9
s
tlL
INC LOW period
1
s
tlH
INC HIGH period
1
s
tlC
INC Inactive to CS inactive
1
s
tCPH
CS deselect time (STORE)
20
ms
tCPH
CS deselect time (NO STORE)
100
ns
tIW
INC to Vw change
1
5
s
tCYC
INC cycle time
4
s
tR, tF(7)
INC input rise and fall time
500
s
tPU(7)
Power up to wiper stable
5
s
tR VCC(7)
VCC power-up rate
0.2
50
V/ms
tWR
Store cycle
5
10
ms
CS
INC
U/D
VW
tCI
tIL
tIH
tCYC
tID
tDI
tIW
MI
(8)
tIC
tCPH
tF
tR
10%
90%
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