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DS3930E/T&R

Description
Digital Potentiometer, 2 Func, 16500ohm, 2-wire Serial Control Interface, 256 Positions, PDSO20, TSSOP-20
CategoryAnalog mixed-signal IC    converter   
File Size612KB,12 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

DS3930E/T&R Overview

Digital Potentiometer, 2 Func, 16500ohm, 2-wire Serial Control Interface, 256 Positions, PDSO20, TSSOP-20

DS3930E/T&R Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeTSSOP
package instructionTSSOP-20
Contacts20
Reach Compliance Codenot_compliant
ECCN codeEAR99
control interface2-WIRE SERIAL
Converter typeDIGITAL POTENTIOMETER
JESD-30 codeR-PDSO-G20
JESD-609 codee0
length6.5 mm
Humidity sensitivity level1
Number of functions2
Number of positions256
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP20,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)245
power supply3/5 V
Certification statusNot Qualified
resistance lawLINEAR
Maximum resistor terminal voltage5.5 V
Minimum resistor terminal voltage-0.3 V
Maximum seat height1.1 mm
Nominal supply voltage3 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
Nominal total resistance16500 Ω
width4.4 mm
Rev 0; 4/03
Hex Nonvolatile Potentiometer with
I/O and Memory
General Description
The DS3930 contains six 256-position nonvolatile (NV)
potentiometers, 64 bytes of NV user EEPROM memory,
and four programmable NV I/O pins. The six poten-
tiometers all share a common low side. The potentiome-
ters are separated into two groups of three 50kΩ
potentiometers in parallel. Each group of three poten-
tiometers shares a common high side and forms an
equivalent resistance of 16.6kΩ (three 50kΩ poten-
tiometers in parallel).
Six 256-Position NV Potentiometers
Four General-Purpose NV I/O Pins
64 Bytes of User EEPROM Memory
0 to 5.5V on Any Potentiometer Terminal,
Independent of V
CC
All Six Potentiometers Share a Common Low Side
Potentiometers Separated into Two Groups of
Three Potentiometers, Each Sharing a Common
High Side
2-Wire Serial Interface
Wide Supply Range (2.7V to 5.5V)
Up to Eight DS3930s Can Share the Same
2-Wire Bus
Features
DS3930
Applications
RF Transceivers
Voltage References
Power Supply Calibration
Mobile Phones and PDAs
Fiber Optic Transceiver Modules
Portable Electronics
Radio Tuners
Small, Low-Cost Replacement for Mechanical
Potentiometers
Ordering Information
PART
DS3930E
PIN-PACKAGE
20 TSSOP
Pin Configuration
TOP VIEW
A0 1
A1 2
A2 3
SDA 4
SCL 5
I/O
0
6
I/O
1
7
I/O
2
8
V
CC
9
GND 10
20 HI
0-2
V
CC
Typical Operating Circuit
V
CC
A0
HI
0-2
W
0
W
1
W
2
LO
0-5
WIPER
TERMINALS
19 W
0
A1
18 W
1
17 W
2
4.7kΩ
4.7kΩ
A2
DS3930
16 LO
0-5
15 HI
3-5
14 W
3
13 W
4
12 W
5
11 I/O
3
2-WIRE
INTERFACE
SDA
SCL
I/O
0
DIGITAL
NONVOLATILE I/O
V
CC
I/O
1
I/O
2
V
CC
GND
DS3930
HI
3-5
W
3
W
4
W
5
I/O
3
DIGITAL
NONVOLATILE I/O
WIPER
TERMINALS
DECOUPLING CAP
0.1µF
TSSOP
_____________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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