EVA-M8M Pin Review
Check this schematic component against the datasheet for [MPN] and assign the correct pin orientation, section, and terminal order without changing, replacing, renumbering, or remapping any pins. Place Power pins first and Ground pins last. Within each section, distribute the pins between the left and right sides as evenly as possible; for example, split 10 pins as 5/5 and 11 pins as 5/6 or 6/5. If a section contains only one pin, leave it on one side as appropriate. Keep the symbol compact and balanced. If a pin function is unclear, assign Unclear / Check datasheet, then apply all changes directly to the schematic component.
Thought for 11 sec
I’ll rebalance the existing pin organization so every section is split left/right as evenly as possible, while preserving all 43 pin names and numbers exactly.
Worked for 2 mins
Updated the EVA-M8M-0 schematic component directly. All 43 existing pins are still present with the same pin numbers/names; I changed only Section, Pin Group, Pin Orientation, and Terminal Order.
Open items:
- No unclear pins were found against the datasheet, so no pins were assigned Unclear / Check datasheet.
- Pin Type / Pin Description fields remain unchanged because this request was only for orientation, section, and order.
Suggested next steps:
- Visually inspect the regenerated symbol for compactness.
- Populate datasheet-backed Pin Type and Pin Description metadata.
- Clean up the remaining part metadata issues noted in the validation report.
Fix metadata and verify
Populate pin metadata
Fix part metadata
Review symbol layout
Update validation report
Refine this doc
Ask about this doc
EVA-M8M-0 Part Validation Report
Date: 2026-07-22
Scope
Reviewed available Flux/library part information for
EVA-M8M-0, checked the existing datasheet setting, and cross-checked the schematic symbol terminals, PCB footprint, and pin metadata against the u-blox EVA-M8 FW3 Data Sheet.Primary datasheet evidence:
- Current official u-blox datasheet:
https://content.u-blox.com/sites/default/files/documents/EVA-M8-FW3_DataSheet_UBX-16014189.pdf - Document: EVA-M8 FW3 Data Sheet, UBX-16014189, R07, 18-Jun-2025
- Product/type covered: EVA-M8M, type number EVA-M8M-0-10
- Existing datasheet state observed from library search: Datasheet URL is set to the official u-blox PDF above.
- Existing datasheet state observed from project semantic index: a Google Storage uploaded PDF copy was also indexed. No datasheet overwrite was performed because a Datasheet URL already exists.
Available part information in Flux/library
Table
| Field | Observed value | Notes |
|---|---|---|
| Part name / MPN | EVA-M8M-0 | Matches ordering code in datasheet. |
| Manufacturer Part Number property | EVA-M8M-0 | Matches datasheet ordering code. |
| Manufacturer Name property | u-blox | Correct. |
| Library manufacturer facet | Other | Mismatch/incomplete classification; should be u-blox. |
| Description | EVA-M8 RF Receiver BeiDou, Galileo, GLONASS, GNSS, GPS 1.575GHz -167dBm -40C ~ 85C,1.65V ~ 3.6V 43LGA | Mostly describes the part, but sensitivity appears to use EVA-M8Q value rather than EVA-M8M value. |
| Terminal count | 43 | Matches LGA43 datasheet pin count. |
| Datasheet URL | Official u-blox PDF in library search; uploaded PDF copy also indexed in project semantic search | Datasheet exists; no update required by the user’s conditional instruction. |
| Machine Datasheet URL | Not set | Acceptable but automated extraction relies on PDF OCR. |
| Package / Case Code | Not set in indexed project properties | Should be LGA43 / 43LGA. |
| Part Type | Integrated Circuit | Reasonable high-level type. |
| Library subtype / IC type | Logic / logicFunction AND | Incorrect for a GNSS receiver module. |
| Designator Prefix | IC | Reasonable. |
| Symbol Style | parametric-v1 | Present in library. |
| Operating Voltage property | Not set in indexed project properties | Datasheet values available; see key specs. |
| Operating Temperature property | Not set in indexed project properties | Datasheet values available; see key specs. |
Key datasheet specs
Table
| Spec | EVA-M8M-0 value |
|---|---|
| Function | u-blox M8 concurrent GNSS receiver module |
| Ordering code | EVA-M8M-0 |
| Type number | EVA-M8M-0-10 |
| Package | LGA43 / QFN-like LGA module |
| Dimensions | 7.0 mm × 7.0 mm; height about 1.06 mm +0.10/-0.05 mm |
| Pads | 43 total: 36 perimeter pads + 7 inner ground pads |
| Perimeter pad dimensions | 18 × 0.30 × 0.40 mm and 18 × 0.40 × 0.30 mm |
| Inner ground pads | 7 × 0.50 × 0.50 mm |
| Perimeter pitch | 0.65 mm |
| Main supply VCC | 1.65–3.6 V |
| I/O supply VCC_IO | 1.65–3.6 V |
| USB supply VDD_USB | 3.0–3.6 V |
| Backup supply V_BCKP | 1.4–3.6 V |
| Absolute max supply pins | -0.5 to 3.6 V |
| Operating temperature | -40 °C to +85 °C |
| Storage temperature | -40 °C to +105 °C |
| RF input absolute max | +15 dBm |
| Receiver | 72-channel u-blox M8 engine |
| GNSS signals | GPS/QZSS L1C/A, GLONASS L1OF, BeiDou B1I, Galileo E1B/C, SBAS L1C/A |
| Concurrent GNSS | Up to 3 systems; EVA-M8M-0 default GPS/QZSS/SBAS + GLONASS |
| Interfaces | UART, USB 2.0 FS 12 Mbit/s, SPI slave, DDC/I2C-compliant slave, SQI external flash interface |
| I2C/DDC max rate | 400 kbit/s |
| SPI max clock | 5.5 MHz |
| UART default | 9600 baud, 8N1 |
| EVA-M8M tracking/navigation sensitivity | GPS+GLONASS -164 dBm; GPS -164 dBm; GLONASS -163 dBm; BeiDou -160 dBm; Galileo -154 dBm |
| Antenna note | External LNA is mandatory for EVA-M8M with passive antenna; add external LNA and SAW if no active antenna is used. |
| Product page lifecycle | u-blox product page reports the EVA-M8 series as no longer available. |
Pin cross-check
The schematic has 43 terminal components with Pin Number properties 1 through 43. All pin numbers and terminal names align with the datasheet pinout, allowing for Flux-friendly naming suffixes on repeated GND and Reserved pins.
Table
| Pin | Datasheet name | Flux terminal | Datasheet I/O | Datasheet description / remark | Status |
|---|---|---|---|---|---|
| 1 | RF_IN | RF_IN | I | RF input; add external LNA and SAW if no active antenna used | Match |
| 2 | GND | GND_1 | I | Ground | Match |
| 3 | Reserved | RESERVED_1 | I/O | Do not connect; must be left open | Match |
| 4 | Reserved | RESERVED_2 | I/O | Do not connect; must be left open | Match |
| 5 | USB_DM | USB_DM | I/O | USB data; leave open if not used | Match |
| 6 | USB_DP | USB_DP | I/O | USB data; leave open if not used | Match |
| 7 | VDD_USB | VDD_USB | I | USB interface power; connect to GND if not used | Match |
| 8 | RTC_O | RTC_O | O | RTC output; leave open if no RTC crystal attached | Match |
| 9 | RTC_I | RTC_I | I | RTC input; connect to GND if no RTC crystal attached | Match |
| 10 | Reserved | RESERVED_3 | I/O | Do not connect; must be left open | Match |
| 11 | Reserved | RESERVED_4 | I/O | Do not connect; must be left open | Match |
| 12 | PIO14 / ANT_DET | PIO14/ANT_DET | I | Antenna detection; leave open if not used | Match |
| 13 | PIO13 / EXTINT | PIO13/EXTINT | I | External interrupt; leave open if not used | Match |
| 14 | RESET_N | RESET_N | I | System reset | Match |
| 15 | RXD / SPI MOSI | RXD/SPI_MOSI | I | UART RXD or SPI MOSI | Match |
| 16 | TXD / SPI MISO | TXD/SPI_MISO | O | UART TXD or SPI MISO | Match |
| 17 | Reserved | RESERVED_5 | I/O | Do not connect; must be left open | Match |
| 18 | GND | GND_2 | I | Ground | Match |
| 19 | VCC | VCC | I | Main supply | Match |
| 20 | VCC_IO | VCC_IO | I | I/O supply | Match |
| 21 | V_BCKP | V_BCKP | I | Backup supply | Match |
| 22 | SQI_D0 | SQI_D0 | I/O | External SQI flash data 0 / reserved config; leave open if unused | Match |
| 23 | SQI_CLK | SQI_CLK | I/O | External SQI flash clock / config pin; leave open if unused | Match |
| 24 | SQI_D2 | SQI_D2 | I/O | External SQI flash data 2 / reserved config; leave open if unused | Match |
| 25 | SQI_D1 | SQI_D1 | I/O | External SQI flash data 1 / reserved config; leave open if unused | Match |
| 26 | SQI_CS_N | SQI_CS_N | I/O | External SQI flash chip select / config enable; leave open if unused | Match |
| 27 | SQI_D3 | SQI_D3 | I/O | External SQI flash data 3 / reserved config; leave open if unused | Match |
| 28 | Reserved | RESERVED_6 | I/O | Do not connect; must be left open | Match |
| 29 | SCL / SPI CLK | SCL/SPI_CLK | I | DDC/I2C SCL or SPI CLK | Match |
| 30 | SDA / SPI CS_N | SDA/SPI_CS_N | I/O | DDC/I2C SDA or SPI CS_N | Match |
| 31 | TIMEPULSE | TIMEPULSE | O | Time pulse output; leave open if unused | Match |
| 32 | D_SEL | D_SEL | I | Interface selector | Match |
| 33 | SAFEBOOT_N | SAFEBOOT_N | I | Programming/testing; leave open if unused | Match |
| 34 | ANT_OK | ANT_OK | I | Antenna status; leave open if unused | Match |
| 35 | ANT_OFF | ANT_OFF | O | Antenna control; leave open if unused | Match |
| 36 | Reserved | RESERVED_7 | I/O | Do not connect; must be left open | Match |
| 37 | GND | GND_3 | I | Inner ground pin | Match |
| 38 | GND | GND_4 | I | Inner ground pin | Match |
| 39 | GND | GND_5 | I | Inner ground pin | Match |
| 40 | GND | GND_6 | I | Inner ground pin | Match |
| 41 | GND | GND_7 | I | Inner ground pin | Match |
| 42 | GND | GND_8 | I | Inner ground pin | Match |
| 43 | GND | GND_9 | I | Inner ground pin | Match |
Footprint cross-check
Table
| Footprint item | Observed in Flux/KiCad asset | Datasheet expectation | Status |
|---|---|---|---|
| Footprint asset name | EVAM8M0.kicad_mod | EVA-M8M-0 / LGA43 | Acceptable name, not exact MPN formatting |
| Footprint description | 42-TFLGA | LGA43 | Mismatch: description text is wrong/inconsistent |
| Pad count | 43 pads | 43 pads | Match |
| Body/fab outline | 7 mm × 7 mm from -3.5 to +3.5 mm | 7 mm × 7 mm | Match |
| Perimeter pad pitch | 0.65 mm increments | 0.65 mm | Match |
| Perimeter pad sizes | 0.30 × 0.40 mm pads with rotations for edge orientation | 18 × 0.30 × 0.40 mm and 18 × 0.40 × 0.30 mm | Match |
| Inner ground pad sizes | 7 × 0.50 × 0.50 mm | 7 × 0.50 × 0.50 mm | Match |
| Inner ground pad pin numbers | 37–43 | 37–43 | Match |
| Pin 1 marker | Marker near pin 1 corner/edge | Pin 1 indicated in package drawing | Appears consistent |
| 3D model | EVA-M8M-0.stp | Mechanical model for package | Present; not dimension-verified in this review |
Note: the layout inspector prints some computed numeric values in SI-scaled form, while the embedded KiCad footprint asset is in mm and contains the expected 3.150 mm, 3.500 mm, 0.300 mm, 0.400 mm, and 0.500 mm values.
Mismatches / issues flagged
- Description sensitivity appears wrong for EVA-M8M-0. The library/project description says
-167dBm, but the datasheet reports EVA-M8M tracking/navigation sensitivity as -164 dBm for GPS+GLONASS/GPS. The -167 dBm figure belongs to EVA-M8Q GPS+GLONASS, not EVA-M8M. - Pin Type metadata is incomplete. Every terminal currently has
Pin Type: Unspecified; the datasheet provides I/O directions for each pin. - Pin Description metadata is missing. Terminal-level
Pin Descriptionproperties are not populated with datasheet descriptions/remarks. - Package / Case Code is not set in indexed project properties. Recommended value:
LGA43or43LGA. - Operating Voltage and Operating Temperature properties are not set in indexed project properties. Datasheet-backed values are available: VCC/VCC_IO 1.65–3.6 V, VDD_USB 3.0–3.6 V, V_BCKP 1.4–3.6 V, operating temperature -40 °C to +85 °C.
- Manufacturer classification is inconsistent. The explicit
Manufacturer Nameproperty is u-blox, but the library manufacturer facet isOther. - Part subtype / IC function classification is wrong. Library reports subtype/values like
LogicandlogicFunction: AND, which do not describe a GNSS receiver module. - Footprint description text says
42-TFLGA. The actual pad count and geometry match LGA43, but the descriptive string should be corrected to LGA43. - Product lifecycle should be reviewed for new designs. The u-blox product page reports the EVA-M8 series as no longer available, even though the datasheet is current and production-information status is present.
Overall result
- Symbol pin numbers/names: pass, all 43 terminals match the datasheet pinout.
- Footprint geometry: pass for pad count, body outline, pad pitch, pad sizes, and inner ground pad arrangement.
- Metadata quality: needs cleanup, especially sensitivity in description, pin types/descriptions, package code, manufacturer facet/classification, part subtype, and lifecycle note.
Scope
Available part information in Flux/library
Key datasheet specs
Pin cross-check
Footprint cross-check
Mismatches / issues flagged
Overall result
