DS1804 DATASHEET PDF

It offers a large amount of data sheet, You can free PDF files download. The updated every day, always provide the best quality and speed. Nonvolatile Trimmer Potentiometer. INC 1. GND 4. DIP mils.

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Initial report by Amit Pitaru , 13, Feb, The DS has non-volatile memory, so it remembers the wiper's position when turned off.

The DS allows us to move the wiper to different locations steps , and comes in three models: 10K, 50K, and K.

Report by Amit Pitaru. I'm waiting on an order to test this unit, and will update this page accordingly. This is what I think is happening Being programmable, it is especially suited for auto-calibration applications. For example, it could be used in a voltage-devider circuit , allowing the microchip to determine and save the best resistance-value for the sensor I'll attempt such a circuit during the semester.

Free samples are available on the Maxim site. Vcc Supply voltage: The DS operates from 2. For optimal operation, supply voltage from 3V to 5V. Vcc is the Supply voltage usually from 3V to 5V. Resistor pins: The three resistor pins can handle voltage from Gnd In a typical circuit Gnd is usually 0V and Vcc is 5V; in this case the pins will handle between VCC - Power Supply.

H - High-Terminal Potentiometer. This is the high terminal of the potentiometer. It is not required that this terminal be connected to a potential greater than the L-terminal. Voltage applied to the H-terminal cannot exceed the power-supply voltage, VCC, or go below ground.

L - Low-Terminal Potentiometer. This is the low terminal of the potentiometer. It is not required that this terminal be connected to a potential less than the H-terminal. Voltage applied to the L-terminal cannot exceed the power-supply voltage, VCC, or go below ground.

Verify in class: if i get this right - these two pins mirror leads on a regular Pot. In that sense, they are interchangeable it doesn't matter if L is connected to Vcc and H to Gnd. W - Wiper of the Potentiometer. This pin is the wiper of the potentiometer. Its position on the resistor array is controlled by the three-terminal control port. Voltage applied to the wiper cannot exceed the power-supply voltage, VCC, or go below ground.

CS - Chip Select. The CS input is used to activate the control port of the DS This input is active low. This input provides for wiper position changes when the CS pin is low. Wiper position changes of the W-terminal will occur one position per high-to-low transition of this input signal.

Position changes will not occur if the CS pin is in a high state. This input sets the direction of wiper movement. When in a high state and CS is low, any high-to-low transition on INC will cause a one position movement of the wiper towards the H-terminal.

When in a low state and CS is low, any high-to-low transitions on INC will cause the position of the wiper to move towards the L-terminal. This transition will move the wiper one unit in the direction set in step 2.

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