MAX5450 データシートの表示（PDF） - Maxim Integrated
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MAX5450 Datasheet PDF : 12 Pages
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Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
PIN
MAX5451
MAX5453
MAX5455
MAX5450
MAX5452
MAX5454
1
1
—
2
2
—
3
—
4
3
5
4
6
—
7
5
8
6
9
—
10
7
11
8
—
9
12
—
13
—
14
10
Pin Description
NAME
CS1
U/D
U/D1
U/D2
VDD
W1
H1
L1
L2
H2
W2
GND
INC
INC2
INC1
CS2
FUNCTION
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
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
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
transition decrements wiper position W2. With U/D2 high, a high-to-low
INC2 transition increments wiper position W2.
Power Supply
Wiper Terminal of Resistor 1
High Terminal of Resistor 1
Low Terminal of Resistor 1
Low Terminal of Resistor 2
High Terminal of Resistor 2
Wiper Terminal of Resistor 2
Ground
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.
Wiper Increment Control Input. With CS2 low, a high-to-low transition
increments (U/D2 high) or decrements (U/D2 low) wiper position W2.
Wiper Increment Control Input. With CS1 low, a high-to-low transition
increments (U/D1 high) or decrements (U/D1 low) wiper position W1.
Chip-Select Input of Resistor 2. Drive low to change wiper position W2
through INC and U/D.
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