Part Audit Review
can you group together pins by their functions?
for example for Power, 3v3, gnd_1 gnd_2 etc
NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function.
Thought for 1 min 16 sec
Yes. I’ll extend the audit to assign each pin to exactly one broad functional group based on its primary datasheet function, with power and ground separated and no duplicate pin membership.
Worked for 12 mins
Created a project doc
MCP41HV51-503E/ST Part Audit
Manufacturer: Microchip Technology Official product: MCP41HV51
Audit complete. All 14 pins now have verified descriptions, electrical types, and unique functional groups with no duplication; the symbol pinout matches Microchip’s datasheet.
- Critical issue: the effective footprint is scaled down by 1000× and is not manufacturable. I filed an internal part-quality report.
- Minor issue: Part Type “Resistors” is valid but overly broad.
- The existing datasheet URL was retained because it was already populated.
Full findings: MCP41HV51-503E/ST Part Audit
Fix footprint and type
Fix footprint scaling
Update part type
Re-run verification
Check 3D alignment
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MCP41HV51-503E/ST Part Audit
Source of truth
- Manufacturer: Microchip Technology
- Official product: MCP41HV51
- Official datasheet: https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/MCP41HVX1-Data-Sheet-20005207.pdf
- Current project Datasheet URL was already populated with an uploaded PDF, so it was not replaced.
Metadata review
Table
| Field | Project value | Result |
|---|---|---|
| MPN | MCP41HV51-503E/ST | Correct |
| Manufacturer | Microchip | Correct |
| Package | 14-TSSOP | Correct; ST is 14-lead TSSOP, 4.4 mm body |
| Pin/pad count | 14 | Correct |
| Description | 50 kΩ, 256-position SPI digital potentiometer | Substantively correct |
| Part Type | Resistors | Too broad; “Digital Potentiometer” would be more precise if supported |
Key specifications
- Single-channel, 8-bit digital potentiometer; 256 taps.
- Nominal end-to-end resistance: 50 kΩ for the
503option; specified ±20% (40–60 kΩ). - High-voltage analog operation: up to 36 V across V+ and V−, including ±18 V operation.
- Digital supply VL: 2.7–5.5 V normally; 1.8–5.5 V under the datasheet’s DGND/V− condition.
- SPI interface: up to 10 MHz at VL = 2.7–5.5 V; modes 0,0 and 1,1.
- Typical wiper resistance: 75 Ω under the stated high-voltage condition.
- Extended temperature range: −40 °C to +125 °C.
- Package: 14-lead TSSOP, 0.65 mm pitch, 4.4 mm nominal body width, 5.0 mm nominal body length, 6.4 mm overall lead span, 1.2 mm maximum height.
Pinout and grouping verification
Every physical pin is present exactly once. Pin numbers and names agree with the current Microchip datasheet.
Table
| Pin | Name | Functional group | Type | Datasheet function |
|---|---|---|---|---|
| 1 | VL | Power | Power In | Positive digital supply |
| 2 | SCK | SPI | Input | SPI serial clock |
| 3 | ~CS | SPI | Input | Active-low chip select |
| 4 | SDI | SPI | Input | SPI serial data input |
| 5 | SDO | SPI | Output | SPI serial data output |
| 6 | ~WLAT | Control | Input | Active-low wiper latch enable |
| 7 | ~SHDN | Control | Input | Active-low shutdown |
| 8 | NC | Not Connected | Not Connected | Not internally connected; datasheet recommends DGND or VL for noise reduction |
| 9 | DGND | Ground | Ground | Digital ground |
| 10 | V− | Power | Power In | Analog negative supply |
| 11 | P0B | Potentiometer | Bi-Directional | Potentiometer terminal B |
| 12 | P0W | Potentiometer | Bi-Directional | Potentiometer wiper |
| 13 | P0A | Potentiometer | Bi-Directional | Potentiometer terminal A |
| 14 | V+ | Power | Power In | Analog positive supply |
Section is equal to Pin Group for every pin. No pin is assigned to more than one group. Orientations are Power=Top, Ground=Bottom, SPI/Control=Left, and Potentiometer/NC=Right.Symbol review
- Pin names and pin numbers match the datasheet.
- Active-low control names are represented with
~prefixes. - All pins now have datasheet-based descriptions and electrical types.
- Functional grouping is complete and non-duplicated.
Footprint review
Source asset
The embedded KiCad footprint source describes a plausible/correct Microchip TSSOP-14 land pattern:
- 14 pads
- 0.65 mm pitch
- Pad size 0.45 × 1.475 mm
- Pad centers at X = ±2.938 mm
- Body drawing approximately 4.4 × 5.0 mm
- Courtyard approximately 7.85 × 5.6 mm
These values closely match the Microchip recommended land pattern (0.45 × 1.45 mm pads and 5.90 mm row center spacing).
Critical mismatch
The effective Flux-computed footprint is scaled by 0.001 relative to the source asset. For example, pads compute at ±0.002938 mm with size 0.00045 × 0.001475 mm rather than ±2.938 mm and 0.45 × 1.475 mm. This makes the footprint microscopic and not manufacturable as currently resolved.
An internal part-quality report was filed. The footprint should not be used for PCB fabrication until the import/unit scaling is corrected and reverified.
Overall result
- Metadata: mostly correct; Part Type is overly broad.
- Symbol/pinout: correct after metadata and functional-group updates.
- Footprint source: dimensionally appropriate.
- Effective footprint: critical unit-scaling failure; unusable until corrected.
Source of truth
Metadata review
Key specifications
Pinout and grouping verification
Symbol review
Footprint review
Source asset
Critical mismatch
Overall result
