Rainbow-electronics DS1804 Bedienungsanleitung PDF herunterladen

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FEATURES

 Single 100-position taper potentiometer

 Nonvolatile “on-demand” wiper storage

 Operates from 3V or 5V supplies

 Up/down, increment-controlled interface

 Available in 8-pin (300-mil) DIP, 8-pin

(150-mil) SOIC, 8-pin (118-mil) µSOP, and

Flip Chip packages

 Operating Temperature:

– Industrial: -40ºC to +85ºC

 Standard Resistance Values:

– DS1804-010 10 kΩ

– DS1804-050 50 kΩ

– DS1804-100 100 kΩ

PIN ASSIGNMENT

PIN DESCIPTION

H - High-Terminal of Potentiometer

L - Low-Terminal of Potentiometer

W - Wiper of Potentiometer

- 3V or 5V Power Supply

CS - Chip Select

U/ D - Up/Down Control

INC - Increment/Decrement Wiper Control

GND - Ground

DESCRIPTION

The DS1804 NV Trimmer Potentiometer is a nonvolatile digital potentiometer having 100 positions. The

device provides an ideal method for low-cost trimming applications using a CPU or manual control input

with minimal external circuitry. Wiper position of the DS1804 can be stored in EEPROM memory on

demand. The device’s wiper position is manipulated by a 3-terminal port that provides an increment/

decrement counter controlled interface. This port consists of the control inputs CS , INC , and U/ D . The

DS1804 is available in three resistor grades, which include a 10 kΩ, 50 kΩ, and 100 kΩ. The device is

provided in an industrial temperature grade. Additionally, the DS1804 will operate from 3V or 5V

supplies and is ideal for portable application requirements. Three packaging options are available and

include the 8-pin (300-mil) DIP, 8-pin (150-mil) SOIC, 8-pin (118-mil) uSOP, and the Flip Chip

Package.

DS1804

NV Trimmer Potentiomete

www.dalsemi.com

INC 1 8 V

U/D 2 7 CS

H 3 6 L

GND 4 5 W

8-Pin DIP (300-mil)

8-Pin SOIC (150-mil)

8-Pin uSOP (118-mil)

8-Pin Flip Chip Package

See Mech. Drawings Section

1 2 3 4 5 6 7

Inhaltsverzeichnis

Seite 1 - NV Trimmer Potentiomete

1 of 7 102699FEATURES Single 100-position taper potentiometer Nonvolatile “on-demand” wiper storage Operates from 3V or 5V supplies Up/down, incr

Seite 2 - PIN DESCRIPTIONS

DS18042 of 7 102699OPERATIONThe DS1804 is a single nonvolatile potentiometer. The device has a total of 100 tap-points including theL- and H- terminal

Seite 3 - NONVOLATILE WIPER STORAGE

DS18043 of 7 102699DS1804 BLOCK DIAGRAM Figure 1POWER-UP/POWER-DOWN CONDITIONSOn power-up the DS1804 will load the value of EEPROM memory into the wip

Seite 4 - =2.7V to 5.5V)

DS18044 of 7 102699ABSOLUTE MAXIMUM RATINGS*Voltage on Any Pin Relative to Ground -1.0V to +7.0VOperating Temperature -40°C to +85°CStorage Temperatur

Seite 5 - D to INC Setup

DS18045 of 7 102699ANALOG RESISTOR CHARACTERISTICS (-40°C to +85°C;VCC=2.7V to 5.5V)PARAMETER SYMBOL MIN TYP MAX UNITS NOTESEnd-to-End Resistor Tolera

Seite 6 - CS , INC , U/ D =

DS18046 of 7 102699NOTES:1. All voltages are referenced to ground.2. Valid for VCC = 5V only.3. Resistor input voltages cannot go below ground or exce

Seite 7 - DS1804 ORDERING INFORMATION

DS18047 of 7 102699DS1804 ORDERING INFORMATIONORDERINGNUMBERPACKAGEOPERATINGTEMPERATUREVERSIONDS1804-010 8L DIP (300-MIL) -40°C TO +85°C10kΩDS1804-050

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