Part Data Review and Validation
Thought for 2 mins 56 sec
Part audit for NHD-0416BZ-FL-GBW
1) Available part information in the project
2) Datasheet URL check
4) Pin descriptions from the datasheet
5) Package / mechanical data from the datasheet
6) Symbol and footprint cross-check
7) Issues that could matter
Bottom line
Table
| Field | Value | Source |
|---|---|---|
| MPN | NHD-0416BZ-FL-GBW | Project properties |
| Manufacturer | Newhaven Display | Project properties |
| Description | LCD Character Display Modules & Accessories STN- GRAY Transfl 87.0 x 60.0 | Project description |
| Part type | Optoelectronic Devices | Project properties |
| Designator prefix | DS | Project properties |
| Datasheet URL property | DigiKey product page: Datasheet | Project properties |
| Symbol pin count | 20 terminals total = 16 signal/power pins + 4 mounting holes | Schematic |
| Footprint asset | NHD0416BZFLGBW.kicad_mod | PCB footprint |
| 3D model asset | NHD-0416BZ-FL-GBW.stp | PCB model |
Table
| Check | Result |
|---|---|
| Existing datasheet URL property present? | Yes |
| Step 2 update required? | No |
| Official manufacturer PDF located for analysis |
Because the part already had a datasheet URL property, the conditional
3) Datasheet scan summary
@action update step did not trigger.Table
| Category | Extracted metadata |
|---|---|
| Part description | Character Liquid Crystal Display Module |
| Display format | 4 lines x 16 characters |
| Controller | Built-in ST7066U controller |
| Interface | 8/4-bit MPU interface |
| Display mode | STN Positive / Gray / Transflective |
| Optimal view | 6:00 |
| Logic supply | VDD = 4.7 V min, 5.0 V typ, 5.3 V max |
| Logic current | IDD = 1.0 mA min, 1.5 mA typ, 2.5 mA max at VDD = 5.0 V, TOP = 25 °C |
| LCD contrast supply | VLCD = 4.3 V min, 4.5 V typ, 4.7 V max |
| Input high | VIH = 0.7 × VDD min to VDD max |
| Input low | VIL = VSS min to 0.6 V max |
| Output high | VOH = 3.9 V min to VDD max |
| Output low | VOL = VSS min to 0.4 V max |
| Backlight supply | VLED = 4.7 V min, 5.0 V typ, 5.3 V max |
| Backlight current | ILED = 120 mA min, 140 mA typ, 160 mA max at VLED = 5.0 V |
| Operating temperature | -20 °C to +70 °C |
| Storage temperature | -30 °C to +80 °C |
| Other features | +5.0 V power supply, 1/16 duty, 1/5 bias, RoHS compliant |
Table
| Pin | Project symbol terminal | Datasheet function |
|---|---|---|
| 1 | VSS | Ground |
| 2 | VDD | Supply voltage for logic (+5.0 V) |
| 3 | V0 | Contrast supply / adjust (approx. 0.4 V) |
| 4 | RS | Register select, command/data |
| 5 | R/W | Read/write select |
| 6 | E | Enable, falling-edge triggered |
| 7 | DB0 | Data bus bit 0 |
| 8 | DB1 | Data bus bit 1 |
| 9 | DB2 | Data bus bit 2 |
| 10 | DB3 | Data bus bit 3 |
| 11 | DB4 | Data bus bit 4 |
| 12 | DB5 | Data bus bit 5 |
| 13 | DB6 | Data bus bit 6 |
| 14 | DB7 | Data bus bit 7 |
| 15 | LED | Backlight anode, +5.0 V via on-board resistor |
| 16 | LED- | Backlight cathode, ground |
| MH1 | MH1 | Mechanical mounting hole |
| MH2 | MH2 | Mechanical mounting hole |
| MH3 | MH3 | Mechanical mounting hole |
| MH4 | MH4 | Mechanical mounting hole |
Table
| Item | Datasheet value |
|---|---|
| Module outline | 87.0 ±0.5 mm × 60.0 ±0.5 mm × 14.5 mm max |
| Viewing area | 61.8 mm × 25.2 mm |
| Active area | 56.2 mm × 20.8 mm |
| Mounting holes | 4 × Ø2.5 mm |
| Signal pins | 16 × Ø1.0 mm |
| Pin pitch | 2.54 mm |
| Pin span | P2.54 × 15 = 38.1 mm |
| General tolerance | ±0.3 mm |
Table
| Check | Result | Risk |
|---|---|---|
| Electrical pin count | Pass - symbol has 16 electrical pins matching datasheet pins 1-16 | Low |
| Mounting hole count | Pass - symbol/footprint include 4 mounting holes | Low |
| Pin numbering | Pass - project pin numbers align with datasheet numbering | Low |
| Pin names | Pass - names match datasheet intent; only minor naming difference: datasheet uses V0 Adj, project uses V0 | Low |
| Pin pitch | Pass - footprint uses 2.54 mm pitch across 16 pins | Low |
| Pin span | Pass - footprint pads run 38.1 mm from pin 1 to pin 16 | Low |
| Mounting hole drill | Pass - footprint uses 2.5 mm drill for mounting holes | Low |
| Overall body size | Pass - footprint outline is 87 mm × 60 mm, matching datasheet nominal size | Low |
| Through-hole signal drill | Pass - footprint uses 1.0 mm drill, matching datasheet callout | Low |
| 3D model presence | Pass - STEP model is present | Low |
| Schematic pin electrical types | Issue - all symbol terminals are currently Unspecified instead of power/input/bidirectional/mechanical | Medium for ERC quality, low for manufacturing |
| Datasheet property quality | Issue - project property points to a DigiKey product page, not the manufacturer PDF | Low for fabrication, medium for part-maintenance accuracy |
| Package metadata | Issue - no explicit normalized package field was visible beyond the footprint asset | Low to medium for library hygiene / ordering clarity |
Table
| Issue | Impact |
|---|---|
| All symbol pins are typed as Unspecified | Can weaken ERC and make future integration less reliable, especially for VSS, VDD, LED , LED-, and bus pins DB0 to DB7 |
| Datasheet property is not the official PDF | Can mislead downstream review or reuse of the part project |
| No clear mismatch found in footprint geometry | Good news: I did not find a pin-count, pitch, hole-size, or outline mismatch likely to cause immediate manufacturing failure |
Table
| Verdict | Summary |
|---|---|
| Overall | The part project looks geometrically consistent with the manufacturer datasheet. |
| No critical manufacturing mismatch found | Pin count, numbering, 2.54 mm pitch, 16-pin header geometry, 4 mounting holes, and overall 87 mm × 60 mm outline all line up. |
| Recommended cleanup | Fix symbol pin electrical types and replace the current datasheet property with the official PDF URL for better part quality. |
If you want, I can next produce a precise correction list for the symbol pin types and metadata fields.
Fix pin types
Review BOM fields
Check footprint details
