10-Bit, Nonvolatile, Linear-Taper Digital

Potentiometers

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9

Pin Description

PIN

TQFN

TSSOP

NAME

FUNCTION

112H

High Terminal

211W

Wiper Terminal

310L

Low Terminal

4–7, 15

7, 8, 9, 13

N.C.

No Connection. Not internally connected.

8, 16

14

supply operation, -2.5V

with a 0.1µF ceramic capacitor as close to the device as possible.

96

SPI/UD

Interface-Mode Select. Select serial SPI interface when SPI/UD = 1. Select serial up/down

interface when SPI/UD = 0.

Serial SPI Interface Data Input (SPI/UD = 1)

10

5

DIN(U/D)

Up/Down Control Input (SPI/UD = 0). With DIN(U/D) low, a high-to-low SCLK(INC) transition

decrements the wiper position. With DIN(U/D) high, a high-to-low SCLK(INC) transition

increments the wiper position.

Serial SPI Interface Clock Input (SPI/UD = 1)

11

4

SCLK(INC)

Wiper-Increment Control Input (SPI/UD = 0). With CS low, the wiper position moves in the

direction determined by the state of DIN(U/D) on a high-to-low transition.

12

3

CS

Active-Low Digital Input Chip Select

13

2

GND

Ground

14

1

Positive Power-Supply Input (+2.7V

ceramic capacitor as close to the device as possible.

EP

—

EP

(MAX5481/MAX5482 Voltage-Dividers)