CAT5221J-50 datasheet, PDF - EEWORLD Datasheet

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CAT5221J-50: DescriptionDigital Potentiometer, 2 Func, 50000ohm, 2-wire Serial Control Interface, 64 Positions, PDSO20, 0.300 INCH, SOIC-20; CategoryAnalog mixed-signal IC converter; File Size113KB，16 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

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CAT5221J-50 Overview

Digital Potentiometer, 2 Func, 50000ohm, 2-wire Serial Control Interface, 64 Positions, PDSO20, 0.300 INCH, SOIC-20

CAT5221J-50 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Catalyst
Parts packaging code	SOIC
package instruction	SOP,
Contacts	20
Reach Compliance Code	unknown
ECCN code	EAR99
control interface	2-WIRE SERIAL
Converter type	DIGITAL POTENTIOMETER
JESD-30 code	R-PDSO-G20
JESD-609 code	e0
length	15.4 mm
Humidity sensitivity level	1
Number of functions	2
Number of positions	64
Number of terminals	20
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	240
Certification status	Not Qualified
resistance law	LINEAR
Maximum resistor tolerance	20%
Maximum resistor terminal voltage	5 V
Minimum resistor terminal voltage
Maximum seat height	2.65 mm
Nominal supply voltage	5 V
surface mount	YES
Nominal temperature coefficient	300 ppm/°C
Temperature level	COMMERCIAL
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
Nominal total resistance	50000 Ω
width	7.5 mm

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Advance Information

CAT5221

Dual Digitally Programmable Potentiometers (DPP™)

with 64 Taps and 2-wire Interface

FEATURES

Two linear-taper digitally programmable

LOGEN

Automatic recall of saved wiper settings at

potentiometers

64 resistor taps per potentiometer

End to end resistance 2.5k

Ω

, 10k

Ω

, 50k

Ω

or 100k

Ω

Potentiometer control and memory access via

power up

2.5 to 6.0 volt operation

Standby current less than 1

1,000,000 nonvolatile WRITE cycles

100 year nonvolatile memory data retention

20-lead SOIC and TSSOP packages

Commercial and industrial temperature ranges

2-wire interface (I C like)

Low wiper resistance, typically 80Ω

Ω

Nonvolatile memory storage for up to four wiper

settings for each potentiometer

DESCRIPTION

The CAT5221 is two Digitally Programmable

Potentiometers (DPPs™) 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 2-wire serial bus (I

C-like). 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 CAT5221 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 20-lead SOIC package.

PIN CONFIGURATION

SOIC Package (J, W)

TSSOP Package (U, Y)

RW0

RL0

RH0

RW1

RL1

RH1

SDA

GND

CAT

5221

VCC

SCL

FUNCTIONAL DIAGRAM

RH0

RH1

SCL

SDA

2-WIRE BUS

INTERFACE

WIPER

CONTROL

REGISTERS

R W0

R W1

CONTROL

LOGIC

NONVOLATILE

DATA

REGISTERS

RL0

RL1

Characteristics subject to change without notice

Document No. 2113, Rev. G

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