Part Review Mismatch

Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.

Thought for 6 sec

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I’ll inspect the part metadata, find the official datasheet if needed, update the Datasheet property, then cross-check symbol/footprint/pin descriptions and summarize any mismatches.

Worked for 5 mins 23 sec

Created a project doc

Part Information Review

View Document

Date: 2026-07-21 Project: PTCAN3404DRQ1

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Completed the part review and saved the detailed findings in Part Information Review.

Open items:

Official TI MPN appears to be TCAN3404DRQ1, while the project uses PTCAN3404DRQ1.
Pinout and SOIC-8 footprint match the datasheet overall.
Pin 5 should likely be SHDN for this TCAN3404-only part, not SHDNVIO.
Terminal pin types/descriptions and explicit package metadata are incomplete.
Datasheet URL already existed, so I did not overwrite it; official TI URL found: https://www.ti.com/lit/ds/symlink/tcan3404-q1.pdf.

Suggested next steps:

Correct the MPN if this is meant to be the official TI production part.
Rename pin 5 to SHDN.
Add datasheet-backed pin descriptions/types and package metadata.

Fix metadata and review

Fix part metadata

Rename pin 5

Add pin descriptions

Run review checks

Files

Pins

Symbol

Layout

Preview

RXD

Pin Number

SHDN

Pin Number

CANL

Pin Number

STB

Pin Number

TXD

Pin Number

VCC

Pin Number

GND

Pin Number

CANH

Pin Number

Part Information Review

Date: 2026-07-21 Project: PTCAN3404DRQ1

Scope

Reviewed available part information: manufacturer part number, manufacturer, package, pin count, description, properties, schematic symbol terminals, PCB footprint, and datasheet-derived pin/function/package data.

Datasheet source

Existing project Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1f53a8416ba9b6bbad13f93c8977442b514206718303bbba5c78fa7a5a080d09.pdf
Official TI datasheet found during review: https://www.ti.com/lit/ds/symlink/tcan3404-q1.pdf
Because a Datasheet URL was already present, I did not overwrite the existing Datasheet property.

Current project properties observed

Table

Field	Current value	Datasheet / official source check
Manufacturer Part Number	`PTCAN3404DRQ1`	TI official orderable part is `TCAN3404DRQ1` / `TCAN3404DRQ1.A`; leading `P` was not found as the official TI MPN in the datasheet.
Manufacturer Name	Texas Instruments	Matches.
Part Type	Integrated Circuits	Reasonable.
Designator Prefix	IC	Reasonable.
Project description	TCAN340x-Q1 3.3V Automotive CAN FD Transceivers with Standby Mode and +/-58V bus Standoff	Matches datasheet family description.
Explicit Package property	Not observed	Should ideally be set to SOIC (D), 8-pin / D0008A.
Pin count	8 pads / 8 terminals	Matches SOIC-8 orderable device.

Key datasheet specs

Device family: TCAN3404-Q1 / TCAN3403-Q1.
Function: 3.3 V automotive CAN FD transceiver compatible with ISO 11898-2:2016 physical layer.
Supply: VCC recommended operating range 3.0 V to 3.6 V, nominal 3.3 V.
CAN FD data rate: optimized for 2, 5, and 8 Mbps; datasheet description states certified EMC operation up to 5 Mbps and up to 8 Mbps possible in simpler networks.
Bus fault / standoff: CANH/CANL absolute bus I/O voltage range ±58 V.
Receiver common-mode input: ±30 V.
Automotive qualification: AEC-Q100 qualified.
Operating junction temperature: -40 °C to 150 °C recommended operating range.
Package for TCAN3404DRQ1: SOIC (D), 8 pins, tape-and-reel, package outline D0008A, 1.75 mm max height.
Package body: datasheet package information gives SOIC (D) package size 4.9 mm x 6 mm; mechanical outline D0008A shows 1.27 mm lead pitch.

Datasheet pinout vs schematic symbol

Table

Pin	Datasheet name	Datasheet type / function	Schematic terminal	Status
1	TXD	Digital input, CAN transmit data input; integrated pull-up	TXD, Pin Number 1	Match
2	GND	Ground	GND, Pin Number 2	Match
3	VCC	Supply, 3.3 V supply voltage	VCC, Pin Number 3	Match
4	RXD	Digital output, CAN receive data output; tri-stated when powered off	RXD, Pin Number 4	Match
5	SHDN	Digital input, shutdown high for TCAN3404-Q1; integrated pull-down	SHDNVIO, Pin Number 5	Functional match for combined TCAN3403/TCAN3404 family pin label, but for TCAN3404-only MPN this should preferably be named `SHDN`, not `SHDNVIO`.
6	CANL	Bus I/O, low-level CAN bus line	CANL, Pin Number 6	Match
7	CANH	Bus I/O, high-level CAN bus line	CANH, Pin Number 7	Match
8	STB	Digital input, standby mode control; integrated pull-up	STB, Pin Number 8	Match

Symbol and terminal metadata observations

Symbol terminal placement is broadly readable: TXD/RXD/VCC/GND on the left and CAN/mode-control pins on the right.
All terminals currently show Pin Type: Unspecified.
No terminal-level Pin Description values were observed.
For library quality, the terminals should ideally carry datasheet-backed pin types and descriptions:
- TXD: Digital Input; CAN transmit data input, integrated pull-up.
- GND: Ground.
- VCC: Supply; 3.3 V supply.
- RXD: Digital Output; receive data output, tri-stated when powered off.
- SHDN: Digital Input; ultra-low-power shutdown input for TCAN3404-Q1, integrated pull-down.
- CANL/CANH: Bus I/O.
- STB: Digital Input; standby control, integrated pull-up.

Footprint check

Observed footprint asset: SOIC127P600X175-8N.kicad_mod, described as D0008A.

Datasheet D0008A example board layout:

1.27 mm lead pitch.
Example pad size approximately 0.6 mm x 1.55 mm.
Pad row span approximately 5.4 mm.
SOIC-8 package, 1.75 mm max height.

Observed footprint payload:

8 SMD rectangular pads.
Pitch: 1.27 mm.
Pad size: 0.65 mm x 1.528 mm.
Pad row center span: 5.422 mm.
Courtyard: 7.45 mm x 5.5 mm.
Fab body: approximately 3.896 mm x 4.904 mm.
Includes pin-1 chamfer/marker geometry and STEP model reference.

Footprint conclusion: footprint geometry is consistent with TI D0008A SOIC-8 guidance. Pad dimensions and row span are close to the datasheet example board layout. No footprint geometry mismatch was found.

Mismatches / issues flagged

MPN mismatch / likely typo: project MPN is PTCAN3404DRQ1, while TI official orderable part is TCAN3404DRQ1 or TCAN3404DRQ1.A. This is the most important issue to correct before publishing or procurement.
Pin 5 name is family-combined: schematic uses SHDNVIO. In the shared TCAN3403/TCAN3404 datasheet pin 5 is SHDN,VIO; for the specific TCAN3404DRQ1 MPN, pin 5 function is SHDN. If this part is intended to be TCAN3404-only, rename terminal to SHDN and keep VIO out of the symbol.
Terminal metadata incomplete: all terminal pin types are Unspecified, and no pin descriptions were observed. This does not break the pinout but lowers symbol quality and automated review usefulness.
Package property missing: package is represented by the footprint, but no explicit package property was observed. Add a package/case property such as SOIC (D), 8-pin, D0008A for searchability and clarity.
Datasheet URL is populated but not direct TI URL: existing Datasheet URL points to an uploaded PDF copy. The official TI direct datasheet URL is https://www.ti.com/lit/ds/symlink/tcan3404-q1.pdf. The user instruction only required updating if missing, so it was not changed.

Overall conclusion

The schematic pin numbers and footprint are substantially correct for the SOIC-8 TCAN3404-Q1 device. The main corrective actions are metadata cleanup: change the MPN from PTCAN3404DRQ1 to TCAN3404DRQ1 if the official TI production part is intended, rename pin 5 to SHDN for the TCAN3404-only variant, add datasheet-backed pin types/descriptions, and add an explicit SOIC-8 D0008A package property.

Scope
Datasheet source
Current project properties observed
Key datasheet specs
Datasheet pinout vs schematic symbol
Symbol and terminal metadata observations
Footprint check
Mismatches / issues flagged
Overall conclusion