CAT5270YI-00-GT2 ON Semiconductor, CAT5270YI-00-GT2 Datasheet - Page 2

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CAT5270YI-00-GT2

Manufacturer Part Number
CAT5270YI-00-GT2
Description
IC POT DPP 100K 256TAP 14TSSOP
Manufacturer
ON Semiconductor
Datasheet

Specifications of CAT5270YI-00-GT2

Taps
256
Resistance (ohms)
100K
Number Of Circuits
2
Temperature Coefficient
100 ppm/°C Typical
Memory Type
Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Resistance In Ohms
100K
Number Of Elements
1
# Of Taps
256
Resistance (max)
100KOhm
Power Supply Requirement
Single
Interface Type
Serial (I2C)
Single Supply Voltage (typ)
3.3/5V
Dual Supply Voltage (typ)
Not RequiredV
Single Supply Voltage (min)
2.5V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
14
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Pin Description
SCL: Serial Clock
data transfers into or out of the device.
SDA: Serial Data
transfer data into and out of the device. The SDA pin is an
open drain output and can be wire−OR’d with the other open
drain or open collector I/Os.
A0, A1, A2, A3: Device Address Inputs
multiple devices. A total of sixteen devices can be addressed
on a single bus. A match in the slave address must be made
with the address input in order to initiate communication
with the CAT5270.
R
terminal connections on a mechanical potentiometer.
R
mechanical potentiometer.
Device Operation
compatible interface and two 8−bit wiper control registers.
Each resistor array contains 255 separate resistive elements
connected in series. The physical ends of each array are
equivalent to the fixed terminals of a mechanical
potentiometer (R
at the ends of the series resistors are connected to the output
H
W
The CAT5270 serial clock input pin is used to clock all
The CAT5270 bidirectional serial data pin is used to
These inputs set the device address when addressing
The two sets of R
The R
The CAT5270 is two resistor arrays integrated with an I
, R
: Wiper
L
: Resistor End Points
W
pins are equivalent to the wiper terminal of a
H
and R
H
and R
L
). The tap positions between and
L
pins are equivalent to the
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2
C
2
wiper terminals (R
one tap point for each potentiometer is connected to its wiper
terminal at a time and is determined by the value of the wiper
control register. Data can be read or written to the wiper
control register via the I
device can be instructed to operate in an “increment/
decrement” mode.
Table 1. PIN DESCRIPTION
TSSOP−14
Pin #
10
12
13
14
11
1
2
3
4
5
6
7
8
9
Name
GND
SDA
R
R
SCL
V
R
R
R
R
A0
A2
A1
A3
CC
W0
W1
H0
H1
L0
L1
W
) by a CMOS transistor switch. Only
Device Address, LSB
Supply Voltage
Low Reference Terminal for
Potentiometer 0
High Reference Terminal for
Potentiometer 0
Wiper Terminal for Potentiometer 0
Device Address
Serial Data Input/Output
Device Address
Low Reference Terminal for
Potentiometer 1
High Reference Terminal for
Potentiometer 1
Wiper Terminal for Potentiometer 1
Ground
Bus Serial Clock
Device Address
2
C compatible interface. Also, the
Function

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