Details

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BUY X9C503PI https://www.utsource.net/itm/p/1392242.html
IC DGTL POT 50KOHM 100TAP 8DIP

Below is the parameter table and instructions for the X9C503PI digital potentiometer.

X9C503PI Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit
Supply Voltage	VDD	2.7	-	5.5	V
Operating Temperature	Ta	-40	-	85	°C
Storage Temperature	Tstg	-55	-	150	°C
Digital Input Voltage	VIH	2.0	-	VDD	V
Digital Input Voltage	VIL	0	-	0.8	V
Digital Output Current	IOH	-	0.4	-	mA
Digital Output Current	IOL	-	6.0	-	mA
Wiper Resistance	RW	50	100	150	Ω
Total Resistance	RT	5000	-	5000	Ω
Resistance Tolerance	-	±20%	-	-	%
Wiper to End Resistance	RWE	0	-	5000	Ω
Increment/Decrement Step	-	1	-	99	Steps
Non-Volatility	-	Yes	-	-	-
Power Consumption	-	-	0.1	-	mA

Instructions for X9C503PI

1. Pin Configuration

• 1 (CS): Chip Select (Active Low)
• 2 (UP/DOWN): Up/Down Control
• 3 (INC/DEC): Increment/Decrement Control
• 4 (W): Wiper Terminal
• 5 (VSS): Ground
• 6 (VDD): Supply Voltage
• 7 (A): Terminal A
• 8 (B): Terminal B
• 9 (NC): No Connection

2. Basic Operation

• Initialization: Set CS to low to enable the device.
• Increment/Decrement:
  • To increment the wiper position, set UP/DOWN to high and pulse INC/DEC.
  • To decrement the wiper position, set UP/DOWN to low and pulse INC/DEC.
• Wiper Position: The wiper position can be adjusted from 0 to 99 steps, corresponding to 0% to 100% of the total resistance (5kΩ).

3. Programming Sequence

1. Enable the Device: Set CS to low.
2. Set Direction: Set UP/DOWN to high for increment or low for decrement.
3. Adjust Wiper: Pulse INC/DEC to move the wiper.
4. Disable the Device: Set CS to high to disable the device.

4. Example Code (Pseudocode)

// Initialize
CS = LOW
UP_DOWN = HIGH  // Set to increment
INC_DEC = LOW

// Increment Wiper Position
for i in range(10):  // Move wiper 10 steps
    INC_DEC = HIGH
    delay(1)  // Short delay
    INC_DEC = LOW
    delay(1)  // Short delay

// Disable Device
CS = HIGH

5. Important Notes

• Ensure that the supply voltage (VDD) is within the specified range (2.7V to 5.5V).
• The wiper resistance (RW) can vary between 50Ω and 150Ω.
• The device has non-volatile memory, so the last wiper position is retained even when power is removed.
• Avoid exceeding the maximum current ratings for digital inputs and outputs to prevent damage.

This table and instructions should provide a comprehensive overview of the X9C503PI digital potentiometer.

(For reference only)