CAT5116 Datasheet, PDF(2/8 Page) Catalyst Semiconductor – Log-Taper, 100-Tap Digitally Programmable Potentiometer

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CAT5116 Datasheet, PDF (2/8 Pages) Catalyst Semiconductor – Log-Taper, 100-Tap Digitally Programmable Potentiometer

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CAT5116

PIN CONFIGURATION

DIP Package (P, L)

TSSOP Package (U, Y)

INC 1

U/D 2

RH 3

GND 4

8 VCC

CS 1

7 CS

VCC 2

6 RL

5 RW

INC 3

U/D 4

8 RL

7 RW

6 GND

5 RH

SOIC Package (S, V)

INC 1

U/D 2

RH 3

GND 4

8 VCC

7 CS

6 RL

5 RW

MSOP Package (R, Z)

INC 1

U/D 2

RH 3

GND 4

8 VCC

7 CS

6 RL

5 RW

PIN FUNCTIONS

Pin Name

Function

INC

Increment Control

U/D

Up/Down Control

Potentiometer High Terminal

GND

Ground

Potentiometer Wiper Terminal

Potentiometer Low Terminal

Chip Select

VCC

Supply Voltage

PIN DESCRIPTIONS

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.

U/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,

U/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.

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.

Doc. No. 2118, Rev. J

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