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TDC-GP1 Equivalent & Substitute Parts
Part Overview
The TDC-GP1 is a 2-channel Time-to-Digital Converter interface integrated circuit manufactured by ScioSense, housed in a 44-LQFP surface mount package. This component is classified as obsolete, necessitating identification of active alternative models that maintain functional compatibility within the Interface Converter category. Substitute parts must satisfy equivalent electrical specifications and mechanical mounting requirements to ensure direct replacement capability in existing designs.
Substiute Parts
Key Parameters
| Parameter | TDC-GP1 |
|---|---|
| Manufacturer Part Number | TDC-GP1 |
| Manufacturer | ScioSense |
| Category | Interface |
| Type | Converter |
| Mounting Type | Surface Mount |
| Package / Case | 44-LQFP |
| Supplier Device Package | 44-TQFP (10x10) |
| Current - Supply | 1.5 µA |
| Operating Temperature | -40°C ~ 85°C |
| Product Status | Obsolete |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Substitute Part Grouping Explanation
Substitute parts for the TDC-GP1 are identified based on the following criteria:
- Manufacturer: ScioSense (same manufacturer ensures design compatibility)
- Category: Interface Converter (functional equivalence)
- Mounting Type: Surface Mount (mechanical compatibility)
- RoHS and REACH Compliance: Maintained across all substitutes
- Operating Temperature Range: Extended or equivalent coverage
- Moisture Sensitivity Level: Consistent MSL rating (3)
- Supply Current: Comparable or lower power consumption
- Package Type: QFN or LQFP variants with compatible pin configurations
The three identified substitutes (AS6500-FQFM, TDC-GP21 1K, TDC-GP22 1K T&R) represent active products from ScioSense's current converter portfolio, each offering functional equivalence with improved or maintained electrical characteristics.
Parameter Comparison
| Parameter | TDC-GP1 | AS6500-FQFM | TDC-GP21 1K | TDC-GP22 1K T&R |
|---|---|---|---|---|
| Manufacturer | ScioSense | ScioSense | ScioSense | ScioSense |
| Category | Interface | Interface | Interface | Interface |
| Type | Converter | Converter | Converter | Converter |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 44-LQFP | 40-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad |
| Current - Supply | 1.5 µA | 100 µA | Not Specified | 100 nA |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Product Status | Obsolete | Active | Active | Active |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 | EAR99 | EAR99 |
| HTSUS | 8542.39.0001 | 8542.39.0001 | 8542.39.0001 | 8542.39.0001 |
Engineering Selection Recommendations
All three substitute parts maintain active product status with current manufacturer support, ensuring long-term availability and supply chain stability. Each substitute carries equivalent or enhanced compliance certifications (ROHS3 for AS6500-FQFM and TDC-GP22 1K T&R versus RoHS for TDC-GP1 and TDC-GP21 1K).
The TDC-GP22 1K T&R offers the lowest supply current (100 nA) and extended operating temperature range (-40°C ~ 125°C), making it suitable for power-constrained or high-temperature applications. The TDC-GP21 1K provides a mid-range option with extended temperature coverage. The AS6500-FQFM includes specified digital input and SPI output interfaces, offering enhanced functional definition for applications requiring explicit signal interface documentation.
All substitutes maintain MSL 3 moisture sensitivity ratings and identical export compliance classifications (EAR99, HTSUS 8542.39.0001), ensuring regulatory equivalence with the original TDC-GP1.
Frequently Asked Questions (FAQ)
Q: Can TDC-GP22 1K T&R directly replace TDC-GP1 in existing PCB designs?
A: Direct PCB replacement requires package compatibility verification. TDC-GP1 uses 44-LQFP (10x10) packaging, while TDC-GP22 1K T&R uses 32-VFQFN (5x5) packaging. Pin-to-pin functional mapping and PCB layout modification are necessary. Consult device datasheets for pinout correspondence.
Q: What is the primary advantage of selecting TDC-GP22 1K T&R over other substitutes?
A: TDC-GP22 1K T&R provides the lowest supply current specification (100 nA) and maintains the widest operating temperature range (-40°C ~ 125°C), offering superior performance in power-sensitive and thermally demanding applications.
Q: Are all substitute parts available in Tape & Reel packaging?
A: AS6500-FQFM and TDC-GP22 1K T&R are specified with Tape & Reel (TR) packaging. TDC-GP21 1K is also available in Tape & Reel format. Packaging format selection depends on production volume and assembly requirements.
Q: Do substitute parts maintain the same compliance certifications as TDC-GP1?
A: All substitutes maintain REACH Unaffected status and EAR99 export classification. RoHS compliance is maintained across all parts, with AS6500-FQFM and TDC-GP22 1K T&R carrying ROHS3 certification (enhanced compliance level).
Q: What inventory availability exists for these substitute parts?
A: Current inventory levels are AS6500-FQFM (1450 Pcs), TDC-GP21 1K (1864 Pcs), and TDC-GP22 1K T&R (1669 Pcs), all listed as New Original In Stock.
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