Datasheet MAX5450, MAX5451, MAX5452, MA5453, MAX5454, MAX5455 (Analog Devices) - 7

Dual, 256-Tap, Up/Down Interface, Digital Potentiometers MAX5450–MAX5455 Pin Description PIN MAX5451 MAX5450 NAME FUNCTION MAX5453 MAX5452 MAX5455 MAX5454
1 1 CS1 Chip-Select Input of Resistor 1. Drive low to change wiper position W1 through INC and U/D. Up/Down Control Input. With U/D low, a high-to-low INC transition — 2 U/D decrements wiper position. With U/D high, a high-to-low INC transition increments wiper position. Up/Down Control Input of Resistor 1. With U/D1 low, a high-to-low INC1 2 — U/D1 transition decrements wiper position W1. With U/D1 high, a high-to-low INC1 transition increments wiper position W1. Up/Down Control Input of Resistor 2. With U/D2 low, a high-to-low INC2 3 — U/D2 transition decrements wiper position W2. With U/D2 high, a high-to-low INC2 transition increments wiper position W2. 4 3 VDD 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 Wiper Increment Control Input. With CS1 low, a high-to-low transition — 9 INC 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.
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