X93156WM8IZ-2.7

Digital Potentiometers Overview

The X93156 is a single digitally controlled potentiometer (XDCP) featuring an Up/Down interface and 32 wiper tap points. It integrates a resistor array, wiper switches, control circuitry, and nonvolatile memory to retain the wiper position upon power-up. The device operates within a supply voltage range of 2.7V to 5.5V, with typical active current consumption of 200µA at 5V and standby current under 2µA. Available in an 8-lead MSOP package, it offers total resistance values of 12.5kΩ or 50kΩ with a maximum tolerance of ±25%.

Digital Potentiometers Feature Summary

• Up/Down Control Interface: Wiper position managed via CS, U/D, and INC inputs using a negative-edge triggered increment signal.
• Nonvolatile Memory: Stores the last wiper position for recall during subsequent power-up operations.
• Low Power Operation: Features low power CMOS technology with 200µA typical active current and 2µA maximum standby current.
• High Reliability: Supports 200,000 data changes per bit with a 100-year data retention capability.

Digital Potentiometers Applications

• Programming bias voltages
• LCD brightness and contrast control
• Implementation of ladder networks

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized channels as this part is marked 'Not Recommended for New Designs'. Confirm RoHS compliance status and specific suffix requirements (e.g., -2.7 for voltage range, Z for Pb-free) against current manufacturer documentation before procurement.

Digital Potentiometers Selection Notes

Select the appropriate resistance value (12.5kΩ or 50kΩ) based on circuit requirements. Ensure the operating voltage falls within the 2.7V to 5.5V range if using the -2.7 suffix variant. Verify that the 8-lead MSOP package dimensions fit the target PCB layout constraints.

Digital Potentiometers Part Context

The X93156 belongs to the Intersil/Renesas X9315 series of digitally controlled potentiometers. It shares architectural similarities with other devices in the family but is distinguished by its specific Up/Down control interface and 32-tap resolution.

Digital Potentiometers Replacement Considerations

The datasheet explicitly states 'NO RECOMMENDED REPLACEMENT' and advises contacting the Technical Support Center for assistance. No direct substitute part numbers are provided in the official documentation.