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X9421 데이터시트(PDF) 13 Page - Xicor Inc.

부품명 X9421
상세설명  Single Digitally Controlled (XDCP) Potentiometer
PDF  21 Pages
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제조업체  XICOR [Xicor Inc.]
홈페이지  http://www.xicor.com
Logo XICOR - Xicor Inc.

X9421 데이터시트(HTML) 13 Page - Xicor Inc.

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X9421
REV 1.1.6 8/1/02
Characteristics subject to change without notice.
13 of 21
www.xicor.com
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.)
ENDURANCE AND DATA RETENTION
CAPACITANCE
POWER-UP TIMING
POWER UP REQUIREMENTS (Power up sequencing can affect correct recall of the wiper registers)
The preferred power-on sequence is as follows: First VCC and then the potentiometer pins, RH, RL, and RW.
Voltage should not be applied to the potentiometer pins before VCC is applied. The VCC ramp rate specification
should be met, and any glitches or slope changes in the VCC line should be held to <100mV if possible. Also, VCC
should not reverse polarity by more than 0.5V. Recall of wiper position will not be complete until VCC reaches its
final value.
Notes: (5)
This parameter is periodically sampled and not 100% tested.
A.C. TEST CONDITIONS
Symbol
Parameter
Limits
Test Conditions
Min.
Typ.
Max.
Units
ICC1
VCC Supply Current
(Active)
400
µA
fSCK = 2MHz, SO = Open,
Other Inputs = VSS
ICC2
VCC Supply Current
(Non-volatile Write)
1mA
fSCK = 2MHz, SO = Open,
Other Inputs = VSS
ISB
VCC Current (Standby)
1
µA
SCK = SI = VSS, Addr. = VSS
ILI
Input Leakage Current
10
µAVIN = VSS to VCC
ILO
Output Leakage Current
10
µAVOUT = VSS to VCC
VIH
Input HIGH Voltage
VCC x 0.7
VCC + 0.5
V
VIL
Input LOW Voltage
–0.5
VCC x 0.1
V
VOL
Output LOW Voltage
0.4
V
IOL = 3mA
Parameter
Min.
Units
Minimum Endurance
100,000
Data Changes per Bit per Register
Data Retention
100
Years
Symbol
Test
Max.
Units
Test Conditions
COUT
(5)
Output Capacitance (SO)
8
pF
VOUT = 0V
CIN
(5)
Input Capacitance (A0, SI, and SCK)
6
pF
VIN = 0V
Symbol
Parameter
Max.
Max.
Units
tRVCC
(5)
VCC Power up Ramp
0.2
50
V/msec
Input pulse levels
VCC x 0.1 to VCC x
0.9
Input rise and fall times
10ns
Input and output timing level
VCC x 0.5



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