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TSC2003IR Equivalent & Substitute Parts
Part Overview
The TSC2003IR is a touchscreen controller IC designed for 4-wire resistive touchscreen applications with 12-bit resolution and I2C interface communication. Manufactured by Texas Instruments, this component operates across a 2.5V to 5.25V supply voltage range and supports industrial temperature ranges from -40°C to 85°C. The TSC2003IR is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support, design updates, and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Base Product Number | TSC2003 |
| Category | Data Acquisition |
| Touchscreen Type | 4 Wire Resistive |
| Resolution | 12 bits |
| Interface | I2C |
| Voltage Reference | Internal |
| Supply Voltage Range | 2.5V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Supplier Device Package | 16-TSSOP |
Substitute Part Grouping Explanation
Substitute parts for the TSC2003IR are identified based on strict electrical and mechanical parameter matching within the TSC2003 product family. The substitution criteria are:
- Base Product Number: Must be TSC2003 (same silicon die and functional specification)
- Touchscreen Interface: Must support 4-wire resistive topology
- Resolution: Must maintain 12-bit analog-to-digital conversion
- Communication Protocol: Must use I2C interface
- Voltage Reference: Must feature internal reference
- Supply Voltage Range: Must operate within 2.5V to 5.25V
- Temperature Range: Must support -40°C to 85°C operation
- Mounting: Must be surface mount in 16-TSSOP package
The TSC2003IPW meets all these criteria and is the direct functional equivalent, differing only in product status (active vs. obsolete) and packaging format (tube vs. unspecified).
Parameter Comparison
| Parameter | TSC2003IR | TSC2003IPW |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Base Product Number | TSC2003 | TSC2003 |
| Category | Data Acquisition | Data Acquisition |
| Touchscreen Type | 4 Wire Resistive | 4 Wire Resistive |
| Resolution (Bits) | 12 b | 12 b |
| Interface | I2C | I2C |
| Voltage Reference | Internal | Internal |
| Supply Voltage Range | 2.5V ~ 5.25V | 2.5V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Supplier Device Package | 16-TSSOP | 16-TSSOP |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Packaging Format | Unspecified | Tube |
Engineering Selection Recommendations
The TSC2003IPW is the direct substitute for the TSC2003IR. Both components share identical electrical specifications, functional capabilities, and physical package dimensions. The primary distinctions are:
Product Status: The TSC2003IR is obsolete, while the TSC2003IPW maintains active production status. For new designs or production continuity, the TSC2003IPW is the appropriate selection.
Compliance: The TSC2003IPW carries ROHS3 compliance certification, whereas the TSC2003IR is non-compliant. Applications subject to RoHS regulatory requirements must use the TSC2003IPW.
Packaging: The TSC2003IPW is supplied in tube packaging format, which may affect procurement logistics and handling procedures compared to the original part's unspecified packaging.
All electrical parameters, thermal characteristics, and interface specifications remain identical between the two variants, ensuring direct functional interchangeability in circuit designs.
Frequently Asked Questions (FAQ)
Q: Can the TSC2003IPW directly replace the TSC2003IR in existing designs?
A: Yes. The TSC2003IPW is electrically and mechanically identical to the TSC2003IR. No circuit modifications, firmware changes, or PCB layout adjustments are required for substitution.
Q: What is the significance of the product status difference?
A: The TSC2003IR is classified as obsolete, indicating Texas Instruments has discontinued production and support. The TSC2003IPW is active, meaning it remains in production with ongoing manufacturer support and availability.
Q: Does the RoHS3 compliance of the TSC2003IPW affect compatibility?
A: No. RoHS3 compliance is a manufacturing and material standard that does not alter electrical performance or functional behavior. It indicates the TSC2003IPW meets environmental and regulatory requirements for restricted substances.
Q: Are there package dimension differences between the two parts?
A: Both parts use the 16-TSSOP package with identical physical dimensions (0.173" width, 4.40mm). The difference is in supply format: the TSC2003IPW is packaged in tubes, while the TSC2003IR's packaging format is unspecified.
Q: What parameters must remain constant for substitution within the TSC2003 family?
A: Touchscreen interface type (4-wire resistive), resolution (12-bit), communication protocol (I2C), voltage reference (internal), supply voltage range (2.5V to 5.25V), operating temperature range (-40°C to 85°C), and package type (16-TSSOP surface mount) must all remain unchanged.
Q: Is the TSC2003IPW suitable for industrial temperature applications?
A: Yes. The TSC2003IPW maintains the full -40°C to 85°C operating temperature range, supporting industrial and extended temperature applications.
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