X9C104SIT1

Overview

The X9C104SIT1 is a digitally controlled potentiometer (XDCP) from the X9C10 series, manufactured by Renesas Electronics. It features a single-channel resistive array with a nominal resistance of 100 kOhms and a linear taper. The device provides 100 tap points for precise wiper positioning, controlled via a serial 3-wire interface consisting of CS, U/D, and INC inputs. It incorporates non-volatile memory to retain the wiper position during power-off cycles. Operating on a single 5V supply, it functions within an industrial temperature range of -40°C to +85°C and is housed in an 8-lead SOIC surface-mount package.

Feature Summary

• Non-volatile EEPROM storage retains wiper position after power loss
• Serial 3-wire control interface (CS, U/D, INC)
• 100 tap positions with 20% resistance tolerance
• Industrial operating temperature range (-40°C to +85°C)

Applications

• Signal processing parameter adjustment
• Hardware gain control circuits
• System calibration and offset trimming

Procurement Notes

Verify the specific suffix 'T1' against official Renesas documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with standard SOIC-8 footprint dimensions and reflow soldering profiles. Cross-reference the manufacturer part number with current datasheets to confirm active status and availability constraints.

Selection Notes

Select this component when a non-volatile digital potentiometer with 100kOhm resistance is required. The 3-wire interface minimizes pin count compared to parallel interfaces. Verify that the 100-tap resolution meets the application's precision requirements and that the 5V supply voltage aligns with the system architecture.

Part Context

This part belongs to the X9C10 family of CMOS digitally controlled potentiometers. The 'S' indicates the SOIC package, while 'I' denotes the industrial temperature grade. The 'T1' suffix typically specifies reel packaging for automated assembly. This series integrates resistor arrays, wiper switches, and control logic into a compact CMOS process.

Replacement Considerations

Direct substitutes include other X9C104 variants such as X9C104SZ or X9C104SIZ, provided the package and temperature grade match. Verify pinout compatibility and electrical parameters before substitution.