CAT5241U-25 ON Semiconductor, CAT5241U-25 Datasheet

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Data Acquisition - Digital Potentiometers/
CAT5241U-25

CAT5241U-25
Manufacturer Part Number	CAT5241U-25
Manufacturer	ON Semiconductor
CAT5241U-25 datasheets	1. CAT5241U-25.pdf (16 pages)

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Specifications of CAT5241U-25
Number Of Elements	4	# Of Taps	64
Resistance (max)	2.5KOhm	Power Supply Requirement	Single
Interface Type	Serial (2-Wire/I2C)	Single Supply Voltage (typ)	3.3/5V
Dual Supply Voltage (typ)	Not RequiredV	Single Supply Voltage (min)	2.5V
Single Supply Voltage (max)	6V	Dual Supply Voltage (min)	Not RequiredV
Dual Supply Voltage (max)	Not RequiredV	Operating Temp Range	0C to 70C
Operating Temperature Classification	Commercial	Mounting	Surface Mount
Pin Count	20	Lead Free Status / RoHS Status	Not Compliant

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CAT5241

Quad Digitally Program-

mable Potentiometer (DPPt)

with 64 Taps and I

Interface

Description

The CAT5241 is four Digitally Programmable Potentiometers

(DPPst) integrated with control logic and 16 bytes of NVRAM

memory. Each DPP 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 DPP.

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 I

C 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 CAT5241 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

•

Four Linear−taper Digitally Programmable 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 I

•

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

December, 2010 − Rev. 18

CASE 948AQ

SDA

GND

C Interface

See detailed ordering and shipping information in the package

dimensions section on page 16 of this data sheet.

http://onsemi.com

TSSOP−20

SOIC−20

Y SUFFIX

W SUFFIX

CASE 751BJ

PIN CONNECTIONS

CAT5241

SCL

SOIC−20 (W)

TSSOP−20 (Y)

(Top View)

ORDERING INFORMATION

Publication Order Number:

CAT5241/D

Download datasheet (164Kb)

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CAT5241U-25 Summary of contents
Page 1 CAT5241 Quad Digitally Program- mable Potentiometer (DPPt) with 64 Taps and I Interface Description The CAT5241 is four Digitally Programmable Potentiometers (DPPst) integrated with control logic and 16 bytes of NVRAM memory. Each DPP consists of a series of 63 ... Page 2 L3B CAT5241WT −RRYMXXXX L = Assembly Location 3 = Lead Finish − Matte−Tin B = Product Revision (Fixed as “B”) CAT5241W = Device Code T = Temperature Range (I = Industrial) − = Dash RR = Resistance 25 = ... Page 3 SCL BUS INTERFACE SDA A0 A1 CONTROL A2 LOGIC A3 Table 1. PIN DESCRIPTION Pin (SOIC) Name Function 1 R Wiper Terminal for Potentiometer Low Reference Terminal for L0 Potentiometer ... Page 4 Table 2. ABSOLUTE MAXIMUM RATINGS Parameter Temperature Under Bias Storage Temperature Range Voltage on any Pin with Respect with Respect to Ground CC Package Power Dissipation Capability (T Lead Soldering Temperature (10 s) Wiper Current Stresses ... Page 5 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 6 Table 10. RELIABILITY CHARACTERISTICS Symbol Parameter N (Note 11) Endurance END T (Note 11) Data Retention DR V (Note 11) ESD Susceptibility ZAP I (Notes 11, 12) Latch−Up LTH 11. This parameter is tested initially and after a design or ... Page 7 Serial Bus Protocol The following defines the features of the I 1. Data transfer may be initiated only when the bus is not busy. 2. During a data transfer, the data line must remain stable whenever the clock line is ... Page 8 Write Operation In the Write mode, the Master device sends the START condition and the slave address information to the Slave device. After the Slave generates an acknowledge, the Master sends the instruction byte that defines the requested operation of ... Page 9 Instructions and Register Description Slave Address Byte The first byte sent to the CAT5241 from the master/ processor is called the Slave/DPP Address Byte. The most significant four bits of the slave address are a device type identifier. These bits ... Page 10 Wiper Control and Data Registers Wiper Control Register (WCR) The CAT5241 contains four 6−bit Wiper Control Registers, one for each potentiometer. The Wiper Control Register output is decoded to select one of 64 switches along its resistor array. The contents ... Page 11 The basic sequence of the three byte instructions is illustrated in Figure 11. These three−byte instructions exchange data between the WCR and one of the Data Registers. The WCR controls the position of the wiper. The response of the wiper ... Page 12 INC/DEC Command Issued SCL SDA R W Figure 13. Increment/Decrement Timing Limits Instruction Format Table 13. READ WIPER CONTROL REGISTER (WCR) S DEVICE ADDRESSES Table 14. WRITE WIPER ... Page 13 Instruction Format (continued) Table 17. GLOBAL TRANSFER DATA REGISTER (DR) TO WIPER CONTROL REGISTER (WCR) S DEVICE ADDRESSES Table 18. GLOBAL TRANSFER WIPER CONTROL REGISTER (WCR) TO DATA ... Page 14 PIN#1 IDENTIFICATION TOP VIEW D A SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-013. PACKAGE DIMENSIONS SOIC−20, 300 mils CASE 751BJ−01 ISSUE O SYMBOL ... Page 15 TOP VIEW D A2 SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153. PACKAGE DIMENSIONS TSSOP20, 4.4x6.5 CASE 948AQ−01 ISSUE θ1 A1 http://onsemi.com 15 SYMBOL MIN ... Page 16 ... The device used in the above example is a CAT5241WI−10−T1 (SOIC, Industrial Temperature, 10 kW, Tape & Reel, 1,000/Reel). 16. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. 17. 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 ...

CAT5241U-25 Summary of contents

Page 1
CAT5241 Quad Digitally Program- mable Potentiometer (DPPt) with 64 Taps and I Interface Description The CAT5241 is four Digitally Programmable Potentiometers (DPPst) integrated with control logic and 16 bytes of NVRAM memory. Each DPP consists of a series of 63 ...
Page 2
L3B CAT5241WT −RRYMXXXX L = Assembly Location 3 = Lead Finish − Matte−Tin B = Product Revision (Fixed as “B”) CAT5241W = Device Code T = Temperature Range (I = Industrial) − = Dash RR = Resistance 25 = ...
Page 3
SCL BUS INTERFACE SDA A0 A1 CONTROL A2 LOGIC A3 Table 1. PIN DESCRIPTION Pin (SOIC) Name Function 1 R Wiper Terminal for Potentiometer Low Reference Terminal for L0 Potentiometer ...
Page 4
Table 2. ABSOLUTE MAXIMUM RATINGS Parameter Temperature Under Bias Storage Temperature Range Voltage on any Pin with Respect with Respect to Ground CC Package Power Dissipation Capability (T Lead Soldering Temperature (10 s) Wiper Current Stresses ...
Page 5
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 6
Table 10. RELIABILITY CHARACTERISTICS Symbol Parameter N (Note 11) Endurance END T (Note 11) Data Retention DR V (Note 11) ESD Susceptibility ZAP I (Notes 11, 12) Latch−Up LTH 11. This parameter is tested initially and after a design or ...
Page 7
Serial Bus Protocol The following defines the features of the I 1. Data transfer may be initiated only when the bus is not busy. 2. During a data transfer, the data line must remain stable whenever the clock line is ...
Page 8
Write Operation In the Write mode, the Master device sends the START condition and the slave address information to the Slave device. After the Slave generates an acknowledge, the Master sends the instruction byte that defines the requested operation of ...
Page 9
Instructions and Register Description Slave Address Byte The first byte sent to the CAT5241 from the master/ processor is called the Slave/DPP Address Byte. The most significant four bits of the slave address are a device type identifier. These bits ...
Page 10
Wiper Control and Data Registers Wiper Control Register (WCR) The CAT5241 contains four 6−bit Wiper Control Registers, one for each potentiometer. The Wiper Control Register output is decoded to select one of 64 switches along its resistor array. The contents ...
Page 11
The basic sequence of the three byte instructions is illustrated in Figure 11. These three−byte instructions exchange data between the WCR and one of the Data Registers. The WCR controls the position of the wiper. The response of the wiper ...
Page 12
INC/DEC Command Issued SCL SDA R W Figure 13. Increment/Decrement Timing Limits Instruction Format Table 13. READ WIPER CONTROL REGISTER (WCR) S DEVICE ADDRESSES Table 14. WRITE WIPER ...
Page 13
Instruction Format (continued) Table 17. GLOBAL TRANSFER DATA REGISTER (DR) TO WIPER CONTROL REGISTER (WCR) S DEVICE ADDRESSES Table 18. GLOBAL TRANSFER WIPER CONTROL REGISTER (WCR) TO DATA ...
Page 14
PIN#1 IDENTIFICATION TOP VIEW D A SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-013. PACKAGE DIMENSIONS SOIC−20, 300 mils CASE 751BJ−01 ISSUE O SYMBOL ...
Page 15
TOP VIEW D A2 SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153. PACKAGE DIMENSIONS TSSOP20, 4.4x6.5 CASE 948AQ−01 ISSUE θ1 A1 http://onsemi.com 15 SYMBOL MIN ...
Page 16
... The device used in the above example is a CAT5241WI−10−T1 (SOIC, Industrial Temperature, 10 kW, Tape & Reel, 1,000/Reel). 16. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. 17. 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 ...

CAT5241U-25

CAT5241U-25

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Specifications of CAT5241U-25

Related parts for CAT5241U-25

CAT5241U-25 Summary of contents

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