Datasheet

MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
_______________________________________________________________________________________ 7
PIN
MAX5451
MAX5453
MAX5455
MAX5450
MAX5452
MAX5454
NAME FUNCTION
11CS1
Chip-Select Input of Resistor 1. Drive low to change wiper position W1
through INC and U/D.
—2U/D
Up/Down Control Input. With U/D low, a high-to-low INC transition
decrements wiper position. With U/D high, a high-to-low INC transition
increments wiper position.
2—U/D1
Up/Down Control Input of Resistor 1. With U/D1 low, a high-to-low INC1
transition decrements wiper position W1. With U/D1 high, a high-to-low
INC1 transition increments wiper position W1.
3—U/D2
Up/Down Control Input of Resistor 2. With U/D2 low, a high-to-low INC2
transition decrements wiper position W2. With U/D2 high, a high-to-low
INC2 transition increments wiper position W2.
43V
DD
Power Supply
5 4 W1 Wiper Terminal of Resistor 1
6 — H1 High Terminal of Resistor 1
7 5 L1 Low Terminal of Resistor 1
8 6 L2 Low Terminal of Resistor 2
9 — H2 High Terminal of Resistor 2
10 7 W2 Wiper Terminal of Resistor 2
11 8 GND Ground
—9INC
Wiper Increment Control Input. With CS1 low, a high-to-low transition
increments (U/D high) or decrements (U/D low) wiper position W1. This
applies similarly for CS2 and W2.
12 — INC2
Wiper Increment Control Input. With CS2 low, a high-to-low transition
increments (U/D2 high) or decrements (U/D2 low) wiper position W2.
13 — INC1
Wiper Increment Control Input. With CS1 low, a high-to-low transition
increments (U/D1 high) or decrements (U/D1 low) wiper position W1.
14 10 CS2
Chip-Select Input of Resistor 2. Drive low to change wiper position W2
through INC and U/D.
Pin Description