CAT5116SIMSOP datasheet(2/8 Pages) CATALYST

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CAT5116

Doc. No. 2118, Rev. J

PIN DESCRIPTIONS

INC

INC: Increment Control Input

The

INC input moves the wiper in the up or down

direction determined by the condition of the U/

D input.

D: Up/Down Control Input

The U/

D input controls the direction of the wiper

movement. When in a high state and

CS is low, any high-

to-low transition on

INC will cause the wiper to move one

increment toward the RH terminal. When in a low state

and

CS is low, any high-to-low transition on INC will

cause the wiper to move one increment towards the

RL terminal.

RH: High End Potentiometer Terminal

RH is the high end terminal of the potentiometer. It is not

required that this terminal be connected to a potential

greater than the RL terminal. Voltage applied to the RH

terminal cannot exceed the supply voltage, VCC or go

below ground, GND.

RW: Wiper Potentiometer Terminal

RW is the wiper terminal of the potentiometer. Its position

on the resistor array is controlled by the control inputs,

INC,

D and CS. Voltage applied to the RW terminal cannot

exceed the supply voltage, VCC or go below ground, GND.

RL: Low End Potentiometer Terminal

RL is the low end terminal of the potentiometer. It is not

required that this terminal be connected to a potential

less than the RH terminal. Voltage applied to the RL

terminal cannot exceed the supply voltage, VCC or go

below ground, GND. RL and RH are electrically

interchangeable.

PIN FUNCTIONS

Pin Name

Function

INC

Increment Control

Up/Down Control

Potentiometer High Terminal

GND

Ground

Potentiometer Wiper Terminal

Potentiometer Low Terminal

Chip Select

VCC

Supply Voltage

PIN CONFIGURATION

DIP Package (P, L)

TSSOP Package (U, Y)

MSOP Package (R, Z)

SOIC Package (S, V)

INC

VCC

GND

INC

VCC

GND

INC

VCC

GND

VCC

GND

INC

CS: Chip Select

The chip select input is used to activate the control input

of the CAT5116 and is active low. When in a high

state, activity on the

INC and U/D inputs will not

affect or change the position of the wiper.

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