TSC2301IZQZ Equivalent & Substitute Parts

Part Overview

The TSC2301IZQZ is a touchscreen controller IC designed for 4-wire resistive touch applications with 12-bit resolution and SPI interface capability. Manufactured by Texas Instruments, this component operates within a 2.7V to 3.6V supply voltage range and supports both external and internal voltage references. The device is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

TSC2301IZQZ

Texas InstrumentsIn Stock: 979TSC2301IZQZ Datasheet

Current PartRFQ

TSC2301IPAG

Texas InstrumentsIn Stock: 1317TSC2301IPAG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSC2301IZQZ is determined by the following critical parameters that must remain consistent:

• Touchscreen Interface: 4-wire resistive topology
• Resolution: 12-bit analog-to-digital conversion
• Communication Protocol: SPI interface
• Voltage Reference Options: Support for both external and internal references
• Supply Voltage Range: 2.7V to 3.6V operation
• Operating Temperature Range: -40°C to 85°C
• Compliance Standards: ROHS3 and REACH requirements

The TSC2301IPAG meets all these core functional and electrical requirements. The primary difference between the main part and its substitute lies in the package configuration and associated mechanical specifications, not in the electrical functionality or interface characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TSC2301IPAG serves as the direct functional equivalent to the TSC2301IZQZ for touchscreen controller applications. Both devices share identical electrical specifications, interface protocols, and compliance certifications. The TSC2301IPAG is currently in active production status, whereas the TSC2301IZQZ is obsolete, making the IPAG variant the appropriate selection for new designs and ongoing production requirements.

The substitution is valid from an electrical and functional standpoint. Design consideration must be given to the package transition from 120-VFBGA to 64-TQFP, which requires PCB layout modifications and may affect thermal management characteristics depending on application requirements.

Frequently Asked Questions (FAQ)

Q: Are the TSC2301IZQZ and TSC2301IPAG electrically interchangeable?

A: Yes. Both devices implement identical 12-bit touchscreen controller functionality with 4-wire resistive interface, SPI communication, and 2.7V to 3.6V supply voltage operation. Electrical performance and interface behavior are equivalent.

Q: What is the primary difference between these two parts?

A: The main difference is the package configuration. The TSC2301IZQZ uses a 120-VFBGA package, while the TSC2301IPAG uses a 64-TQFP package. This affects PCB footprint, pin layout, and board-level integration requirements.

Q: Why is the TSC2301IZQZ listed as obsolete?

A: The TSC2301IZQZ has reached end-of-life status. The TSC2301IPAG remains in active production and is the recommended alternative for new designs and production continuity.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TSC2301IZQZ and TSC2301IPAG are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What design changes are required when switching from TSC2301IZQZ to TSC2301IPAG?

A: PCB layout and footprint modifications are necessary due to the package change from 120-VFBGA to 64-TQFP. Pin assignments and signal routing must be re-evaluated for the new package configuration. Thermal design considerations may also require adjustment based on application thermal requirements.

Q: Are there inventory considerations for these parts?

A: The TSC2301IZQZ has limited inventory availability as an obsolete part. The TSC2301IPAG is actively manufactured and stocked, providing reliable supply chain access for production requirements.