CAT5261YI-00-T2 ON Semiconductor, CAT5261YI-00-T2 Datasheet

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CAT5261YI-00-T2

Manufacturer Part Number
CAT5261YI-00-T2
Description
IC POT DIG 100K 256T SPI 24TSSOP
Manufacturer
ON Semiconductor
Datasheet

Specifications of CAT5261YI-00-T2

Taps
256
Resistance (ohms)
100K
Number Of Circuits
2
Temperature Coefficient
300 ppm/°C Typical
Memory Type
Non-Volatile
Interface
SPI Serial
Voltage - Supply
2.5 V ~ 6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-TSSOP
Resistance In Ohms
100K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CAT5261YI-00-T2
Manufacturer:
ON Semiconductor
Quantity:
1 300
CAT5261
Dual Digitally Program-
mable Potentiometers
(DPPt) with 256 Taps and
SPI Interface
Description
(DPPst) integrated with control logic and 8 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
SPI serial bus. On power−up, the contents of the first data register
(DR0) for each of the potentiometers is automatically loaded into its
respective wiper control register.
variable resistor. It is intended for circuit level or system level
adjustments in a wide variety of applications. It is available in the
−40°C to 85°C industrial operating temperature range and offered in a
24−lead SOIC and TSSOP package.
Features
© Semiconductor Components Industries, LLC, 2010
December, 2010 − Rev. 6
The CAT5261 is two Digitally Programmable Potentiometers
The CAT5261 can be used as a potentiometer or as a two terminal,
Potentiometer
Compliant
Two 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 SPI Interface
Low Wiper Resistance, Typically 100 W
Nonvolatile Memory Storage for up to Four Wiper Settings for Each
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
Industrial Temperature Range
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
1
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
R
V
R
R
WP
SO
NC
NC
NC
NC
CS
A0
W0
CC
H0
L0
ORDERING INFORMATION
PIN CONNECTIONS
http://onsemi.com
TSSOP−24 (Y)
CASE 948AR
CASE 751BK
SOIC−24 (W)
TSSOP−24
W SUFFIX
(Top View)
Y SUFFIX
SOIC−24
CAT5261
1
Publication Order Number:
CAT5261/D
HOLD
SCK
NC
NC
NC
NC
GND
R
R
R
A1
SI
W1
H1
L1

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CAT5261YI-00-T2 Summary of contents

Page 1

CAT5261 Dual Digitally Program- mable Potentiometers (DPPt) with 256 Taps and SPI Interface Description The CAT5261 is two Digitally Programmable Potentiometers (DPPst) integrated with control logic and 8 bytes of NVRAM memory. Each DPP consists of a series of resistive ...

Page 2

... Dash RR = Resistance 100 Production Year (Last Digit Production Month (1- XXXX = Last Four Digits of Assembly Lot Number (TSSOP−24) RLB CAT5261YI 3YMXXX R = Resistance 100 Assembly Location B = Product Revision (Fixed as “B”) CAT5261Y = Device Code I = Temperature Range (I = Industrial Lead Finish − Matte−Tin Y = Production Year (Last Digit Production Month (1− ...

Page 3

CS SCK HOLD Table 1. PIN DESCRIPTIONS Pin # Name 1 SO Serial Data Output 2 A0 Device Address, LSB Connect Connect Connect ...

Page 4

Pin Descriptions SI: Serial Input SI is the serial data input pin. This pin is used to input all opcodes, byte addresses and data to be written to the CAT5261. Input data is latched on the rising edge of the ...

Page 5

Table 2. ABSOLUTE MAXIMUM RATINGS Parameters Temperature Under Bias Storage Temperature Voltage on Any Pin with Respect to Ground (Note 1) V with Respect to Ground CC Package Power Dissipation Capability (T Lead Soldering Temperature (10 s) Wiper Current Stresses ...

Page 6

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 Low Voltage IL ...

Page 7

Table 8. POWER UP TIMING (Notes 9, 10) Symbol t Power−up to Read Operation PUR t Power−up to Write Operation PUW Table 9. WIPER TIMING Symbol t Wiper Response Time After Power Supply Stable WRPO t Wiper Response Time After ...

Page 8

CS SCK t HD HOLD SO Instruction and Register Description Device Type / Address Byte The first byte sent to the CAT5261 from the master/ processor is called the Device Address Byte. The most significant four bits of the Device ...

Page 9

Wiper Control and Data Registers Wiper Control Register (WCR) The CAT5261 contains two 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 10

The basic sequence of the three byte instructions is illustrated in Figure 7. 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 11

INC/DEC Command Issued SCK Instruction Format Table 14. READ WIPER CONTROL REGISTER (WCR) DEVICE ADDRESSES Table 15. WRITE WIPER CONTROL REGISTER (WCR) DEVICE ADDRESSES 0 1 ...

Page 12

Table 19. GLOBAL TRANSFER DATA REGISTER (DR) TO WIPER CONTROL REGISTER (WCR) DEVICE ADDRESSES Table 20. GLOBAL TRANSFER WIPER CONTROL REGISTER (WCR) TO DATA REGISTER (DR) DEVICE ADDRESSES ...

Page 13

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 14

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 14 SYMBOL MIN ...

Page 15

... CAT5261YI−00−T2 CAT5261WI50 CAT5261WI00 CAT5261YI50 CAT5261YI00 12. All packages are RoHS−compliant (Lead−free, Halogen−free). 13. The standard lead finish is Matte−Tin. 14. The device used in the above example is a CAT5261WI−00−T1 (SOIC, Industrial Temperature, 100 kW, Tape & Reel, 1,000/Reel). 15. 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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