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X9428WPI Datasheet(PDF) 13 Page - Xicor Inc.

Part # X9428WPI
Description  Single Digitally Controlled Potentiometer
PDF  20 Pages
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Manufacturer  XICOR [Xicor Inc.]
Direct Link  http://www.xicor.com
Logo XICOR - Xicor Inc.

X9428WPI Datasheet(HTML) 13 Page - Xicor Inc.

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X9428
Characteristics subject to change without notice.
13 of 20
REV 1.1.5 7/8/03
www.xicor.com
A.C. TEST CONDITIONS
EQUIVALENT A.C. LOAD CIRCUIT
Circuit #3 SPICE Macro Model
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
5V
1533
Ω
100pF
SDA Output
2.7V
100pF
10pF
RH
RTOTAL
CH
25pF
CW
CL
10pF
RW
RL
AC TIMING (over recommended operating conditions)
Symbol
Parameter
Min.
Max.
Unit
fSCL
Clock frequency
100
400
kHz
tCYC
Clock cycle time
2500
ns
tHIGH
Clock high time
600
ns
tLOW
Clock low time
1300
ns
tSU:STA
Start setup time
600
ns
tHD:STA
Start hold time
600
ns
tSU:STO
Stop setup time
600
ns
tSU:DAT
SDA data input setup time
100
ns
tHD:DAT
SDA data input hold time
30
ns
tR
SCL and SDA rise time
300
ns
tF
SCL and SDA fall time
300
ns
tAA
SCL low to SDA data output valid time
900
ns
tDH
SDA data output hold time
50
ns
TI
Noise suppression time constant at SCL and SDA inputs
50
ns
tBUF
Bus free time (prior to any transmission)
1300
ns
tSU:WPA
WP, A0, A1, A2 and A3 setup time
0
ns
tHD:WPA
WP, A0, A1, A2 and A3 hold time
0
ns



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