CAT5259UI-50 ON Semiconductor, CAT5259UI-50 Datasheet

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CAT5259UI-50

CAT5259UI-50
Manufacturer Part Number	CAT5259UI-50
Manufacturer	ON Semiconductor
CAT5259UI-50 datasheets	1. CAT5259UI-50.pdf (16 pages)

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Specifications of CAT5259UI-50
Number Of Elements	4	# Of Taps	256
Resistance (max)	50KOhm	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	-40C to 85C
Operating Temperature Classification	Industrial	Mounting	Surface Mount
Pin Count	24	Lead Free Status / RoHS Status	Not Compliant

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CAT5259

Quad Digitally Program-

mable Potentiometers

(DPPt) with 256 Taps and

C Interface

Description

The CAT5259 is four digitally programmable potentiometers

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

memory. Each DPP consists of a 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. A separate 8−bit control register (WCR) independently

controls the wiper tap switches for each DPP. Associated with each

wiper control register are four 8−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

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 registers.

The CAT5259 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. It is available in the 0°C

to 70°C commercial and −40°C to 85°C industrial operating

temperature ranges and offered in a 24−lead SOIC and TSSOP

package.

Features

•

Four Linear Taper Digitally Programmable Potentiometers

•

256 Resistor Taps per Potentiometer

•

End to End Resistance 50 kW or 100 kW

•

Potentiometer Control and Memory Access via I

•

Low Wiper Resistance, Typically 100 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

•

24−lead SOIC and 24−lead TSSOP Packages

•

Industrial Temperature Range

•

These Devices are Pb−Free, Halogen Free/BFR Free and are

RoHS Compliant

December, 2010 − Rev. 9

TSSOP−24

Y SUFFIX

CASE 948AR

C Interface

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 16 of this data sheet.

http://onsemi.com

SOIC−24

W SUFFIX

CASE 751BK

PIN CONNECTIONS

SCL

CAT5259

GND

SDA

SOIC−24 (W)

TSSOP−24 (Y)

(Top View)

Publication Order Number:

CAT5259/D

Download datasheet (166Kb)

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CAT5259UI-50 Summary of contents
Page 1 CAT5259 Quad Digitally Program- mable Potentiometers (DPPt) with 256 Taps and Interface Description The CAT5259 is four digitally programmable potentiometers (DPPst) integrated with control logic and 16 bytes of NVRAM memory. Each DPP consists of a series ... Page 2 L3B CAT5259WT −RRYMXXXX L = Assembly Location 3 = Lead Finish − Matte−Tin B = Product Revision (Fixed as “B”) CAT5259W = Device Code T = Temperature Range (I = Industrial) − = Dash RR = Resistance 50 = ... Page 3 SCL I SDA INTERFACE CONTROL Table 1. PIN DESCRIPTIONS Pin # Name Function Connect 2 A0 Device Address, LSB 3 R Wiper Terminal for Potentiometer ... Page 4 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 s) Wiper Current Stresses exceeding ... Page 5 Table 5. D.C. OPERATING CHARACTERISTICS Symbol Parameter I Power Supply Current CC1 I Power Supply Current CC2 Non−volatile WRITE I Standby Current ( Input Leakage Current LI I Output Leakage Current LO V Input ... Page 6 Table 9. WIPER TIMING Symbol t Wiper Response Time After Power Supply Stable WRPO t Wiper Response Time After Instruction Issued WRL Table 10. WRITE CYCLE LIMITS (Note 10) Symbol t Write Cycle Time WR Table 11. RELIABILITY CHARACTERISTICS Symbol ... 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 SCL SDA 8TH BIT BYTE n SDA SCL START CONDITION SCL FROM MASTER DATA OUTPUT FROM TRANSMITTER DATA OUTPUT FROM RECEIVER START CAT5259 * A0, A1, A2 and A3 correspond to pin A0, A1, A2 and A3 of the device. ... Page 9 Instruction and Register Description Slave Address Byte The first byte sent to the CAT5259 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 for ... Page 10 Wiper Control and Data Registers Wiper Control Register (WCR) The CAT5259 contains four 8−bit Wiper Control Registers, one for each potentiometer. The Wiper Control Register output is decoded to select one of 256 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 14. READ WIPER CONTROL REGISTER (WCR) S DEVICE ADDRESSES Table 15. WRITE WIPER ... Page 13 Instruction Format (continued) Table 18. GANG TRANSFER DATA REGISTER (DR) TO WIPER CONTROL REGISTER (WCR) S DEVICE ADDRESSES Table 19. GANG 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−24, 300 mils CASE 751BK−01 ISSUE O SYMBOL ... Page 15 TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153. PACKAGE DIMENSIONS TSSOP24, 4.4x7.8 CASE 948AR−01 ISSUE θ1 http://onsemi.com 15 SYMBOL MIN ... Page 16 ... The device used in the above example is a CAT5259WI−00−T1 (SOIC, Industrial Temperature, 100 kW, Tape & Reel, 1,000/Reel). 15. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. 16. 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 ...

CAT5259UI-50 Summary of contents

Page 1
CAT5259 Quad Digitally Program- mable Potentiometers (DPPt) with 256 Taps and Interface Description The CAT5259 is four digitally programmable potentiometers (DPPst) integrated with control logic and 16 bytes of NVRAM memory. Each DPP consists of a series ...
Page 2
L3B CAT5259WT −RRYMXXXX L = Assembly Location 3 = Lead Finish − Matte−Tin B = Product Revision (Fixed as “B”) CAT5259W = Device Code T = Temperature Range (I = Industrial) − = Dash RR = Resistance 50 = ...
Page 3
SCL I SDA INTERFACE CONTROL Table 1. PIN DESCRIPTIONS Pin # Name Function Connect 2 A0 Device Address, LSB 3 R Wiper Terminal for Potentiometer ...
Page 4
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 s) Wiper Current Stresses exceeding ...
Page 5
Table 5. D.C. OPERATING CHARACTERISTICS Symbol Parameter I Power Supply Current CC1 I Power Supply Current CC2 Non−volatile WRITE I Standby Current ( Input Leakage Current LI I Output Leakage Current LO V Input ...
Page 6
Table 9. WIPER TIMING Symbol t Wiper Response Time After Power Supply Stable WRPO t Wiper Response Time After Instruction Issued WRL Table 10. WRITE CYCLE LIMITS (Note 10) Symbol t Write Cycle Time WR Table 11. RELIABILITY CHARACTERISTICS Symbol ...
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
SCL SDA 8TH BIT BYTE n SDA SCL START CONDITION SCL FROM MASTER DATA OUTPUT FROM TRANSMITTER DATA OUTPUT FROM RECEIVER START CAT5259 * A0, A1, A2 and A3 correspond to pin A0, A1, A2 and A3 of the device. ...
Page 9
Instruction and Register Description Slave Address Byte The first byte sent to the CAT5259 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 for ...
Page 10
Wiper Control and Data Registers Wiper Control Register (WCR) The CAT5259 contains four 8−bit Wiper Control Registers, one for each potentiometer. The Wiper Control Register output is decoded to select one of 256 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 14. READ WIPER CONTROL REGISTER (WCR) S DEVICE ADDRESSES Table 15. WRITE WIPER ...
Page 13
Instruction Format (continued) Table 18. GANG TRANSFER DATA REGISTER (DR) TO WIPER CONTROL REGISTER (WCR) S DEVICE ADDRESSES Table 19. GANG 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−24, 300 mils CASE 751BK−01 ISSUE O SYMBOL ...
Page 15
TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153. PACKAGE DIMENSIONS TSSOP24, 4.4x7.8 CASE 948AR−01 ISSUE θ1 http://onsemi.com 15 SYMBOL MIN ...
Page 16
... The device used in the above example is a CAT5259WI−00−T1 (SOIC, Industrial Temperature, 100 kW, Tape & Reel, 1,000/Reel). 15. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. 16. 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 ...

CAT5259UI-50

CAT5259UI-50

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Specifications of CAT5259UI-50

Related parts for CAT5259UI-50

CAT5259UI-50 Summary of contents

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