X9316

2

PIN DESCRIPTIONS

equivalent to the fixed terminals of a mechanical potenti-

references the relative position of the terminal in relation

to wiper movement direction selected by the U/D input

and not the voltage potential on the terminal.

nal of a mechanical potentiometer. The position of the

wiper within the array is determined by the control inputs.

The wiper terminal series resistance is typically 100

Ω.

Up/Down (U/D)

The U/D input controls the direction of the wiper move-

ment and whether the counter is incremented or decre-

mented.

Increment (INC)

The INC input is negative-edge triggered. Toggling INC

will move the wiper and either increment or decrement

the counter in the direction indicated by the logic level on

the U/D input.

Chip Select (CS)

The device is selected when the CS input is LOW. The

current counter value is stored in nonvolatile memory

when CS is returned HIGH while the INC input is also

HIGH. After the store operation is complete, the X9316

will be placed in the low power standby mode until the

device is selected once again.

wiper position decoder.

PIN CONFIGURATION

PIN NAMES

7000 FRM T01.1

Symbol

Description

High Terminal

Wiper Terminal

Low Terminal

Ground

Supply Voltage

U/D

Up/Down Input

INC

Increment Input

CS

Chip Select Input

Positive Analog Voltage

Negative Analog Voltage

14-LEAD DIP/SOIC

NC

CS

V+

NC

7000 FRM 02

NC

INC

U/D

NC

1

2

3

4

5

6

7

14

13

12

11

10

9

8

X9316