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

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CAT5270YI-00-GT2

Manufacturer Part Number
CAT5270YI-00-GT2
Description
IC POT DPP 100K 256TAP 14TSSOP
Manufacturer
ON Semiconductor
Datasheet
1.CAT5270YI-00-GT2.pdf (10 pages)

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
CAT5270
Dual Digitally Programmable
Potentiometers (DPPt) with
256 Taps & I
Interface
Description
programmable potentiometer (DPPt) with an I
interface. Each DPP consists of a linear taper series of 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. On power up the wiper position goes to
mid scale.
variable resistor. It is available in a 14−lead TSSOP package operating
over the industrial temperature range (−40°C to 85°C).
Features
•
•
•
•
•
•
•
•
•
•
© Semiconductor Components Industries, LLC, 2009
October, 2009 − Rev. 3
SDA
SCL
The CAT5270 is a volatile 256−tap by two channels, digitally
The CAT5270 can be used as a potentiometer or as a two terminal,
Two Linear Taper Digitally Programmable Potentiometers
256 Resistor Taps per Potentiometer
End to End Resistance 50 kW, 100 kW
I
Low Wiper Resistance 75 W (typ.)
2.5 V to 5.5 V Operation
Standby Current Less than 1 mA
Power On to Mid Scale
14−lead TSSOP Package
Industrial Temperature Range
2
A0
A1
A2
A3
C Compatible Interface
COMPATIBLE
CONTROL
INTERFACE
LOGIC
I
2
Figure 1. Functional Diagram
C
256−POSITION
CONTROL
2
DECODE
C Compatible
R
R
H0
L0
R
R
H1
L1
2
C compatible
R
R
1
W0
W1
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
R
SDA
R
V
R
WO
A0
CC
HO
A2
LO
ORDERING INFORMATION
1
http://onsemi.com
PIN CONNECTION
TSSOP−14 (Y)
CASE 948AM
TSSOP−14
(Top View)
Y SUFFIX
Publication Order Number:
1
CAT5270/D
A3
SCL
GND
R
R
R
A1
W1
H1
L1

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CAT5270YI-00-GT2 Summary of contents

Page 1

CAT5270 Dual Digitally Programmable Potentiometers (DPPt) with 2 256 Taps & Compatible Interface Description The CAT5270 is a volatile 256−tap by two channels, digitally programmable potentiometer (DPPt) with an I interface. Each DPP consists of a linear taper ...

Page 2

Pin Description SCL: Serial Clock The CAT5270 serial clock input pin is used to clock all data transfers into or out of the device. SDA: Serial Data The CAT5270 bidirectional serial data pin is used to transfer data into and ...

Page 3

Table 2. ABSOLUTE MAXIMUM RATINGS Parameters Temperature Under Bias Storage Temperature Voltage on Any Pin with Respect with Respect to Ground CC Package Power Dissipation Capability (T Lead Soldering Temperature (10 sec) Wiper Current Stresses exceeding ...

Page 4

Table 5. D.C. OPERATING CHARACTERISTICS Symbol Parameter I Power Supply Current CC I Standby Current ( Input Leakage Current LI I Output Leakage Current LO V Input Low Voltage IL V Input High Voltage ...

Page 5

F SCL t SU:STA t HD:STA SDA IN SDA OUT Serial Bus Protocol The following defines the features of the I interface protocol: 1. Data transfer may be initiated only when the bus is not busy. 2. During a ...

Page 6

SDA SCL START CONDITION SCL FROM MASTER DATA OUTPUT FROM TRANSMITTER DATA OUTPUT FROM RECEIVER START Device Type Identifier ID3 ID2 CAT5270 0 1 (MSB) Figure 5. Identification Format for Slave Address Byte Figure 3. Start/Stop Condition 1 8 Figure ...

Page 7

Instruction and Register Description Instruction Byte The next byte sent to the CAT5270 contains the instruction and register pointer information. The four most significant bits used provide the instruction opcode I3 − I0. Instructions Instructions are three bytes in length. ...

Page 8

SDA ID3I D2 ID1 ID0 Device ID Internal T Address SDA ID3I D2 ID1 ID0 ...

Page 9

PIN#1 IDENTIFICATION TOP VIEW D SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153. PACKAGE DIMENSIONS TSSOP14, 4.4x5 CASE 948AM−01 ISSUE O SYMBOL ...

Page 10

... All packages are RoHS−compliant (Lead−free, Halogen−free). 12. The device used in the following example: CAT5270YI−00−GT2 is a TSSOP, Industrial Temperature, 100 kW, NiPdAu (TSSOP−14), Tape & Reel, 2,000/Reel. 13. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D ...

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