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CAT5221YI00 Datasheet(PDF) 1 Page - ON Semiconductor

Part # CAT5221YI00
Description  Dual Digital Potentiometer (POT)
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CAT5221YI00 Datasheet(HTML) 1 Page - ON Semiconductor

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 Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 14
1
Publication Order Number:
CAT5221/D
CAT5221
Dual Digital
Potentiometer (POT)
with 64 Taps
and I2C Interface
Description
The CAT5221 is two digital POTs integrated with control logic and
16 bytes of NVRAM memory. Each digital POT consists of a series of
63 resistive elements connected between two externally accessible end
points. The tap points between each resistive element are connected to
the wiper outputs with CMOS switches. A separate 6-bit control
register (WCR) independently controls the wiper tap switches for each
digital POT. Associated with each wiper control register are four 6-bit
non-volatile memory data registers (DR) used for storing up to four
wiper settings. Writing to the wiper control register or any of the
non-volatile data registers is via a I2C serial bus. On power-up, the
contents of the first data register (DR0) for each of the four
potentiometers is automatically loaded into its respective wiper
control register (WCR).
The CAT5221 can be used as a potentiometer or as a two terminal,
variable resistor. It is intended for circuit level or system level
adjustments in a wide variety of applications.
Features
Two Linear-taper Digital Potentiometers
64 Resistor Taps per Potentiometer
End to End Resistance 2.5 kW, 10 kW, 50 kW or 100 kW
Potentiometer Control and Memory Access via I2C Interface
Low Wiper Resistance, Typically 80 W
Nonvolatile Memory Storage for Up to Four Wiper Settings for Each
Potentiometer
Automatic Recall of Saved Wiper Settings at Power Up
2.5 to 6.0 Volt Operation
Standby Current less than 1 mA
1,000,000 Nonvolatile WRITE Cycles
100 Year Nonvolatile Memory Data Retention
20-lead SOIC and TSSOP Packages
Industrial Temperature Range
These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS
Compliant
http://onsemi.com
TSSOP−20
Y SUFFIX
CASE 948AQ
PIN CONNECTIONS
SOIC−20 (W)
TSSOP−20 (Y)
(Top View)
VCC
RW0
RL0
RH0
1
A0
A2
NC
NC
NC
A1
SOIC−20
W SUFFIX
CASE 751BJ
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
ORDERING INFORMATION
A3
SCL
NC
NC
NC
RW1
RL1
RH1
SDA
GND
CAT5221


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