X9221WS Intersil, X9221WS Datasheet - Page 6

• Manufacturer Part Number: X9221WS
• Description: IC DCP DUAL 10K 64TP 20SOIC
• Manufacturer: Intersil
• Series: XDCP™r

Specifications of X9221WS

• Taps: 64
• Resistance (ohms): 10K
• Number Of Circuits: 2
• Temperature Coefficient: 30 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Resistance In Ohms: 10K
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

X9221
Table 1. Instruction Set
Note: (7) N/A = Not applicable or don’t care; that is, a data register is not involved in the operation and need not be addressed (typical)
Figure 7. Acknowledge Response from Receiver
REV 1.1 8/8/02
Read WCR
Write WCR
Read Data Register
Write Data Register
XFR Data Register
to WCR
XFR WCR to Data
Register
Global XFR Data
Register to WCR
Global XFR WCR
to Data Register
Increment/
Decrement Wiper
Instruction
from Transmitter
from Receiver
Data Output
Data Output
SCL from
Master
I
1
1
1
1
1
1
0
1
0
3
START
I
0
0
0
1
1
1
0
0
0
2
I
0
1
1
0
0
1
0
0
1
1
Instruction Format
I
1
0
1
0
1
0
1
0
0
0
1
N/A
N/A
0
0
0
0
0
0
0
0
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N/A
N/A
1/0
1/0
1/0
1/0
1/0
1/0
1/0
P
0
N/A
N/A
N/A
1/0
1/0
1/0
1/0
1/0
1/0
R
1
(7)
N/A
N/A
N/A
1/0
1/0
1/0
1/0
1/0
1/0
R
0
Read the contents of the Wiper Counter Register
pointed to by P
Write new value to the Wiper Counter Register
pointed to by P
Read the contents of the Register pointed to by
P
Write new value to the Register pointed to by
P
Transfer the contents of the Register pointed to
by P
Transfer the contents of the WCR pointed to by
P
Transfer the contents of the Data Registers
pointed to by R
respective WCR
Transfer the contents of all WCRs to their
respective data Registers pointed to by R
of both pots
Enable Increment/decrement of the WCR
pointed to by P
0
0
0
and R
and R
to the Register pointed to by R
0
and R
8
1
1
Characteristics subject to change without notice.
–R
–R
1
0
0
–R
0
0
0
1
0
–R
Operation
to its associated WCR
0
Acknowledge
of both pots to their
9
1
–R
0
1
–R
6 of 15
0