DS3930E+ Maxim Integrated Products, DS3930E+ Datasheet

IC POT NV HEX I/O MEM 20-TSSOP

DS3930E+

Manufacturer Part Number
DS3930E+
Description
IC POT NV HEX I/O MEM 20-TSSOP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS3930E+

Taps
256
Resistance (ohms)
16.5K
Number Of Circuits
6
Temperature Coefficient
250 ppm/°C Typical
Memory Type
Non-Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Resistance In Ohms
16.5K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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).
Rev 0; 4/03
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.
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
TOP VIEW
GND
SDA
SCL
I/O
I/O
I/O
V
A0
A1
A2
CC
0
1
2
10
1
2
3
4
5
6
7
8
9
General Description
TSSOP
DS3930
Pin Configuration
Hex Nonvolatile Potentiometer with
20
19
18
17
16
15
14
13
12
11
Applications
HI
W
W
LO
HI
W
W
W
I/O
W
0
1
2
3
4
5
0-2
3-5
0-5
3
_____________________________________________ Maxim Integrated Products
♦ 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,
♦ All Six Potentiometers Share a Common Low Side
♦ Potentiometers Separated into Two Groups of
♦ 2-Wire Serial Interface
♦ Wide Supply Range (2.7V to 5.5V)
♦ Up to Eight DS3930s Can Share the Same
DS3930E
INTERFACE
Independent of V
Three Potentiometers, Each Sharing a Common
High Side
2-Wire Bus
2-WIRE
DECOUPLING CAP
PART
4.7kΩ
0.1µF
V
CC
NONVOLATILE I/O
V
CC
4.7kΩ
Typical Operating Circuit
DIGITAL
I/O and Memory
PIN-PACKAGE
20 TSSOP
CC
Ordering Information
A0
A1
A2
SDA
SCL
V
GND
I/O
I/O
I/O
CC
0
1
2
DS3930
HI
LO
HI
I/O
W
W
W
W
W
W
0-2
3-5
0-5
0
1
2
3
4
5
3
Features
DIGITAL
NONVOLATILE I/O
WIPER
TERMINALS
WIPER
TERMINALS
V
CC
1

Related parts for DS3930E+

DS3930E+ Summary of contents

Page 1

... Bus PART DS3930E 4.7kΩ 2-WIRE 16 LO 0-5 INTERFACE I/O 3 DECOUPLING CAP _____________________________________________ Maxim Integrated Products I/O and Memory Features CC Ordering Information PIN-PACKAGE 20 TSSOP Typical Operating Circuit 0 4.7kΩ SDA SCL LO 0-5 DS3930 I 3-5 DIGITAL W I NONVOLATILE I/O ...

Page 2

Hex Nonvolatile Potentiometer with I/O and Memory ABSOLUTE MAXIMUM RATINGS Voltage on V Relative to Ground...................... -0.5V to +6.0V CC Voltage on I/O , I/O , I/O , I/O , SDA, SCL, A0, A1, and ...

Page 3

Hex Nonvolatile Potentiometer with ANALOG RESISTOR CHARACTERISTICS (V = +2.7V to +5.5V -40°C to +85°C, unless otherwise specified PARAMETER SYMBOL End-to-End Resistance Wiper Resistance Factory Default Wiper Setting Factory Default I/O Setting POT-to-POT Matching Differential Linearity ...

Page 4

Hex Nonvolatile Potentiometer with I/O and Memory AC ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V -40°C to +85°C, unless otherwise specified PARAMETER SYMBOL Data Hold Time (Notes HD:DAT Data Setup Time ...

Page 5

Hex Nonvolatile Potentiometer with (V = 5.0V +25°C, unless otherwise specified SUPPLY CURRENT vs. TEMPERATURE 220 SDA = SCL = 200 180 160 140 120 -40 -20 ...

Page 6

Hex Nonvolatile Potentiometer with I/O and Memory PIN NAME 1 A0 Address Input. The address input pins determine the 2-wire address of the device Address Input 3 A2 Address Input 4 SDA 2-Wire Serial Data I/O. This pin ...

Page 7

Hex Nonvolatile Potentiometer with V 00h CC 3Fh 40h EFh F0h F1h F2h F3h F4h F5h F6h F7h F8h FFh SDA SCL GND Figure 1. DS3930 Functional Diagram Detailed Description The DS3930 contains six NV potentiometers with ...

Page 8

Hex Nonvolatile Potentiometer with I/O and Memory The I/O pins can be used as general-purpose digital I/O signals. The I/O pins have CMOS outputs with an Table 1. I/O Pin Truth Table PULLUP CTRL I/O PIN SETTING (I/O CONTROL (I/O ...

Page 9

Hex Nonvolatile Potentiometer with PULLUP CTRL I/O PIN SETTING INPUT Figure 2. I/O Cell 2-Wire Serial Port Operation The 2-wire serial port interface supports a bidirectional data transmission protocol with device addressing. A device that sends data on the bus ...

Page 10

Hex Nonvolatile Potentiometer with I/O and Memory MSB DEVICE DEVICE IDENTIFIER ADDRESS Figure 4. Slave Address terminated with a stop condition. The number of data bytes transferred between start and stop conditions is not limited ...

Page 11

Hex Nonvolatile Potentiometer with SDA t BUF t LOW SCL t HD:STA STOP START Figure 5. 2-Wire AC Characteristics TYPICAL 2-WIRE WRITE TRANSACTION MSB 1 START A2* A1* A0* DEVICE READ/ DEVICE IDENTIFIER ADDRESS WRITE EXAMPLE 2-WIRE ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products TRANSISTOR COUNT: 27,000 SUBSTRATE CONNECTED TO GROUND ...

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