SP3232EEN Part Audit

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Thought for 7 sec — Inspecting project components
Created 4 tasks.
1/4 Inspect part metadata, properties, symbol pins, and footprint

Inspect part metadata, properties, symbol pins, and footprint

Find and verify the official datasheet; update Datasheet property if absent

Cross-check package, pin mapping/descriptions, and footprint against datasheet

Summarize key specifications and flag mismatches

Thought for 6 sec
Referenced guidance.
Thought for 21 sec — Investigating schema modifications
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SP3232EEN Audit
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Received notification from "SP3232EEN Audit" that it finished — picking the work back up.

flux

The audit executor has finished. I’m reconciling its findings now, then I’ll independently verify the datasheet property, symbol pinout, and footprint before closing the review.

flux

The executor found the existing datasheet URL was already valid, so no property replacement was needed. I’m doing the final neutral check of the reported classification and pin-metadata issues now.

flux

Audit complete. The existing datasheet URL is valid, so it was retained; the official MaxLinear source was also verified. The 16-pin symbol mapping and NSOIC-16 footprint match the datasheet.
  • Key specs: 3.0–5.5 V, dual driver/dual receiver, 120 kbps minimum, ±15 kV HBM ESD, 0.1 µF charge-pump capacitors, −40°C to +85°C.
  • Issues: incorrect Logic/AND classification, missing SMD mount metadata, and all pin types/descriptions are unspecified. The 3D model’s dimensional fit remains unverified.
  • Full details: Part Audit.
Fix part metadata
Validate 3D model
Improve part quality
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Part Audit
Scope status
  • Completed — metadata audit: Current project/part metadata inspected.
  • Completed — datasheet requirement: Datasheet URL was already present and resolves to a Digi-Key-hosted copy of the correct MaxLinear datasheet. Per scope, it was not replaced because it is not clearly wrong; the official MaxLinear PDF is recorded below as the authoritative source.
  • Completed — symbol audit: All 16 terminals checked against the official SP3232E pin table.
  • Completed — footprint audit: Pad count, numbering, pitch, pad geometry, body/courtyard geometry, package identity, and 3D-model reference checked.
  • Completed — correction policy: No symbol-pin or footprint geometry changes were made.
Authoritative source
Current identity and metadata

Table

ItemCurrent valueAudit result
Project nameSP3232EEN-L/TRIdentity matches the requested MPN; differs typographically from the supplied underscore project name SP3232EEN-L_TR.
Description2/2 Transceiver Full RS232 16-SOIC plus an expanded RS-232 transceiver summaryFunctionally correct.
Manufacturer Part NumberSP3232EEN-L/TRExact match to official ordering table.
Manufacturer NameMaxLinearCorrect; the product originated with Sipex/Exar, now MaxLinear.
Datasheet URLhttps://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/6633/SP3222E_SP3232E.pdfPresent and appears to be the correct MaxLinear datasheet copy, but it is distributor-hosted rather than the official manufacturer URL. Per instruction, it was not replaced because it is not clearly wrong.
Part TypeIntegrated CircuitsBroadly acceptable.
Library subtype / logic classificationLogic; logic function AND was returned by library metadataMismatch: this is an RS-232 interface transceiver, not an AND gate.
Designator PrefixICAcceptable.
Pin count16Correct.
Package/case16-SOICBroadly correct; attached footprint and ordering table identify the more specific package as 16-pin NSOIC.
Mount propertyNo explicit Mount foundMetadata gap: should describe surface mount/SMD.
Symbol styleparametric-v1Informational.
LicenseCC BY 4.0 was returned by the project indexInformational; direct part-property output did not independently expose it.
Key datasheet specifications
  • Device function: 2 RS-232 drivers and 2 RS-232 receivers, with no shutdown or receiver three-state control on the 16-pin SP3232E.
  • Supply: 3.0 V to 5.5 V single supply.
  • Data rate: 120 kbps minimum under the stated full-load test; 235 kbps typical at RL = 3 kΩ, CL = 1000 pF, one driver switching.
  • ESD on driver outputs and receiver inputs: ±15 kV HBM, ±15 kV IEC 61000-4-2 air discharge, ±8 kV IEC 61000-4-2 contact discharge.
  • Charge pump: four external charge-pump capacitors; typical operating circuit shows 0.1 µF for C1–C4 and 0.1 µF VCC bypass C5. Datasheet states external capacitors may be as low as 0.1 µF with 16 V breakdown rating and recommends placing bypass capacitors close to the IC. C3 may return to VCC or GND as shown in the application circuit.
  • Ordering suffix: SP3232EEN-L/TR = -40 °C to +85 °C, 16-pin NSOIC, reel, lead-free.
Symbol and terminal audit
The 16 terminal numbers and names exactly match the official SP3232E pin table:

Table

PinCurrent nameOfficial functionNumber/name resultCurrent type/description result
1C1+Positive terminal of voltage-doubler capacitorMatchType Unspecified; description absent
2V+Charge-pump +5.5 V outputMatchType Unspecified; description absent
3C1-Negative terminal of voltage-doubler capacitorMatchType Unspecified; description absent
4C2+Positive terminal of inverting capacitorMatchType Unspecified; description absent
5C2-Negative terminal of inverting capacitorMatchType Unspecified; description absent
6V-Charge-pump -5.5 V outputMatchType Unspecified; description absent
7T2OUTRS-232 driver outputMatchType Unspecified; description absent
8R2INRS-232 receiver inputMatchType Unspecified; description absent
9R2OUTTTL/CMOS receiver outputMatchType Unspecified; description absent
10T2INTTL/CMOS driver inputMatchType Unspecified; description absent
11T1INTTL/CMOS driver inputMatchType Unspecified; description absent
12R1OUTTTL/CMOS receiver outputMatchType Unspecified; description absent
13R1INRS-232 receiver inputMatchType Unspecified; description absent
14T1OUTRS-232 driver outputMatchType Unspecified; description absent
15GNDGroundMatchType Unspecified; description absent
16VCC3.0–5.5 V supplyMatchType Unspecified; description absent
Symbol finding: numbering and names are correct, but every terminal lacks a datasheet-derived Pin Description and every Pin Type is Unspecified. This is a library-quality/metadata deficiency that weakens ERC behavior. Per scope, no terminal properties were changed.
Footprint and package audit
  • Footprint asset: SOIC127P600X175-16N.kicad_mod.
  • Internal description: NSOIC16-1.
  • Package match: 16-pin narrow SOIC / NSOIC16, matching the EEN ordering option.
  • Pads: 16, numbered 1–16 with exact symbol-terminal correspondence.
  • Pitch: 1.27 mm.
  • Pad centers: two rows at nominal X = ±2.70 mm; Y positions from ±0.635 mm through ±4.445 mm at 1.27 mm pitch.
  • Pad size: 0.65 mm × 1.50 mm, rectangular SMD pads.
  • Fabrication body outline: nominal 3.90 mm × 9.90 mm.
  • Courtyard: 7.40 mm × 10.40 mm.
  • Asset naming indicates nominal 6.00 mm lead span and 1.75 mm package height.
  • Datasheet NSOIC16 mechanical limits: body width 3.80–4.00 mm, body length 9.80–10.00 mm, overall lead span 5.80–6.20 mm, lead pitch 1.27 mm, lead width 0.31–0.51 mm, lead length 0.40–1.27 mm.
  • Geometry comparison: footprint body and pitch are centered on the datasheet nominal dimensions; pad width accommodates the lead-width range, and pad length/toe span are plausible for this standard NSOIC16 package. No obvious footprint mismatch was found.
  • Pin-1 indication is present in fabrication/silkscreen geometry.
  • 3D model asset: SP3232EEN-L_TR.stp at origin, unit scale. A full dimensional 3D-body fit was not independently measured in this audit.
Mismatches and uncertainties
  1. Incorrect functional classification: library metadata reports subtype Logic and logic function AND; the authoritative identity is a 2-driver/2-receiver RS-232 transceiver.
  2. Mount metadata absent: no explicit Mount value was found, although the attached physical asset is NSOIC16 SMD. The package/case value 16-SOIC is present but less specific than 16-pin NSOIC.
  3. Pin metadata incomplete: all pin types are Unspecified, and all pin descriptions are absent.
  4. Description detail: the expanded description states the function, 3.0–5.5 V supply, capacitor guidance, temperature grade, and NSOIC package, but does not include the full ESD rating or explain the /TR reel suffix.
  5. 3D model fit uncertainty: the STEP asset exists, but its body/lead dimensions and seating were not independently validated against the package drawing.
  6. Index inconsistency observed: earlier reads returned an uploaded Google Storage URL and then the official MaxLinear URL, while the final direct current library re-read returned the Digi-Key-hosted PDF above. This indicates concurrent/eventually-consistent metadata activity. The final direct re-read is treated as the current source of truth.
Escalation assessment
No severe symbol pin-number or footprint-geometry defect was found. The main library-quality issues are the incorrect AND classification and missing pin types/descriptions. These should be corrected in a separate authorized asset-maintenance pass; they were intentionally not modified during this audit.

  • Scope status

  • Authoritative source

  • Current identity and metadata

  • Key datasheet specifications

  • Symbol and terminal audit

  • Footprint and package audit

  • Mismatches and uncertainties

  • Escalation assessment