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X9268 Datasheet(PDF) 17 Page - Renesas Technology Corp

Part # X9268
Description  Dual Supply/Low Power/256-Tap/2-Wire Bus Dual Digitally-Controlled (XDCP?? Potentiometers
PDF  22 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

X9268 Datasheet(HTML) 17 Page - Renesas Technology Corp

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X9268
FN8172 Rev.4.00
Page 17 of 22
August 29, 2006
EQUIVALENT A.C. LOAD CIRCUIT
AC TIMING
HIGH-VOLTAGE WRITE CYCLE TIMING
XDCP TIMING
Symbol
Parameter
Min.
Max.
Units
fSCL
Clock Frequency
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
0.9
s
tDH
SDA Data Output Hold Time
0
ns
TI
Noise Suppression Time Constant at SCL and SDA inputs
50
ns
tBUF
Bus Free Time (Prior to Any Transmission)
1200
ns
tSU:WPA
A0, A1 Setup Time
0
ns
tHD:WPA
A0, A1 Hold Time
0
ns
Symbol
Parameter
Typ.
Max.
Units
tWR
High-voltage write cycle time (store instructions)
5
10
ms
Symbol
Parameter
Min.
Max. Units
tWRPO
Wiper response time after the third (last) power supply is stable
5
10
s
tWRL
Wiper response time after instruction issued (all load instructions)
5
10
s
5V
1533
100pF
SDA pin
RH
10pF
CL
CL
RW
RTOTAL
CW
25pF
10pF
RL
SPICE Macromodel
3V
867
100pF
SDA pin



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