Part Datasheet Audit
Organize the terminals into proper pin groups, sections, orientations, and terminal order.
Thought for 5 sec
I’ll organize all 548 terminals by datasheet function, applying broad non-overlapping groups, matching Section to Pin Group, and consistent orientation/order with Power first and Ground last. I’ll then verify every terminal has a complete, unique assignment.
Worked for 6 mins 22 sec
The first bulk pass hit the per-call mutation limit, so I’m splitting the work into functional batches while keeping the same grouping rules and verification criteria.
Worked for 11 mins 18 sec
Organized all 548 terminals into 18 broad functional groups. Every terminal now has matching Pin Group/Section, consistent orientation, and deterministic ordering; Power is Top/order 1 and Ground is Bottom/order 10.
No blank assignments, mixed group orientations, or unintended ordering duplicates remain.
Fix metadata and verify
Fix part metadata
Add pin descriptions
Audit symbol visually
Verify footprint geometry
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MIMX8ML2DVNLZAB Part Information and Datasheet Audit
Audit scope
Reviewed the available part metadata, official NXP datasheet content, all 548 schematic terminals, and the corresponding PCB footprint pads.
Part metadata
Table
| Field | Project/library value | Datasheet cross-check |
|---|---|---|
| Manufacturer part number | MIMX8ML2DVNLZAB | Valid i.MX 8M Plus nomenclature: production, Dual derivative 2, consumer temperature, FCBGA548, 1.8 GHz, standard fusing, silicon rev. B |
| Manufacturer | NXP | Matches |
| Description | ARM Cortex-A53 Microprocessor IC i.MX8ML 2 Core, 64-Bit 1.8GHz 548-LFBGA (15x15) | Substantially correct, but incomplete: derivative 2 also includes VPU and NPU; the package is described by NXP as FCBGA548 rather than LFBGA548 |
| Pin/ball count | 548 | Matches |
| Package property | LFBGA | Broad BGA family match, but NXP documentation identifies the package as FCBGA548, 15 x 15 mm, 0.5 mm pitch, package outline SOT2047-1 |
| Datasheet property | https://cache.nxp.com/secured/assets/documents/en/data-sheet/IMX8MPCEC.pdf?... | Present, so no update was required. It points to NXP's consumer-products datasheet, document IMX8MPCEC. The stored URL is a signed/cache URL and may expire; a stable official form is https://www.nxp.com/docs/en/data-sheet/IMX8MPCEC.pdf. |
| Part Type | Integrated Circuits | Acceptable, but generic |
| IC subtype metadata | Logic / AND | Incorrect classification for an applications processor |
| Designator prefix | IC | Acceptable |
Key specifications
- Family: NXP i.MX 8M Plus applications processor.
- Variant: Dual derivative 2: 2 x 64-bit Arm Cortex-A53, VPU, and 2.3 TOPS NPU; ISP and HiFi 4 are not enabled on derivative 2.
- Cortex-A53 frequency: up to 1.8 GHz for the
LZfrequency code. - Real-time core: Arm Cortex-M7 up to 800 MHz.
- Temperature grade: consumer (
D), junction range 0 to +95 C. - Package: FCBGA548, 15 x 15 mm, 0.5 mm pitch, 29 x 29 nominal ball matrix, NXP outline SOT2047-1.
- External memory: 32-bit LPDDR4 up to 4000 MT/s or DDR4 up to 3200 MT/s, with inline ECC support.
- Multimedia: 1080p60 H.265/H.264 encode and decode; GC7000UL 3D and GC520L 2D graphics.
- Major interfaces represented in the pinout include dual USB, PCIe Gen 3 x1, dual MIPI CSI, MIPI DSI, LVDS, HDMI, dual Gb Ethernet, SD/eMMC, NAND, SPI, I2C, UART, SAI, SPDIF, JTAG, and GPIO.
Symbol and pin audit
- Schematic terminal count: 548.
- Unique physical
Pin Number/ ball-coordinate values: 548. - Duplicate ball coordinates: none found.
- Blank ball coordinates: none found.
- Every schematic terminal has a matching PCB pad object by terminal designator.
- Spot checks against NXP Table 78 match, including A19
MIPI_DSI1_D2_P, B5GPIO1_IO15, G10BOOT_MODE0, R24NVCC_SNVS_1P8, W9VDD_SOC, and AD2DRAM_DQ27. - Repeated power and ground balls are uniquely named in the project (
VDD_SOC_1...,VSS_1..., etc.) while preserving the correct physical ball number. This is internally consistent.
Pin metadata mismatches
- Pin Description is absent on all terminals. The user-visible designators contain the primary signal names, but no datasheet-derived functional descriptions are populated.
- Pin Type is
Unspecifiedon all 548 terminals. Power, ground, input, output, bidirectional, analog, clock, differential, and reserved/DNU pins are not electrically classified. This reduces ERC usefulness. - The symbol is represented as 548 individual terminal records rather than grouped functional sections. Connectivity mapping is intact, but readability and reusable symbol organization are limited.
Footprint audit
- Footprint asset:
BGA548C50P29X29_1500X1500X148.kicad_mod. - Encoded geometry matches the required class: 548 balls, 0.50 mm pitch, 29 x 29 nominal matrix, 15.00 x 15.00 mm body.
- The project exposes 548 corresponding PCB pads and no missing terminal-to-pad associations were found.
- Flux displays pad objects by terminal designator (signal name), while physical ball coordinates remain in each terminal's
Pin Number. This is an internal representation and is not, by itself, evidence of an incorrect mapping. - Exact pad diameter, solder-mask opening, copper shape, courtyard, and coordinate-by-coordinate pitch could not be independently read from the available layout inspection output. Therefore, the footprint's fine geometry is not fully verified against NXP SOT2047-1.
- The footprint filename encodes a height of approximately 1.48 mm, while one extracted package record reports a 1.331 mm body height. Height does not affect copper land mapping, but the 3D/mechanical metadata should be checked against the exact SOT2047-1 package drawing.
Flagged mismatches and risks
Definite metadata issues
- Incorrect IC subtype:
Logic / ANDis wrong; this is an applications processor/microprocessor. - Package naming:
LFBGAand548-LFBGAshould preferably beFCBGA548to match NXP documentation. - Incomplete description: omits the enabled VPU and NPU.
- Missing Pin Description: all 548 terminals lack descriptions.
- Unspecified Pin Type: all 548 terminals lack electrical classification.
Verification limitations / follow-up risks
- The stored official datasheet URL is present but uses an NXP cache URL with a signed query string, which may be less durable than NXP's stable document URL.
- Full footprint land-pattern geometry could not be proven from the available node output. Pad size, mask opening, courtyard, orientation marker, and exact depopulated-ball pattern should be checked directly against SOT2047-1 before production release.
- The library metadata's approximate package height may not match the exact package drawing.
Overall assessment
The core identity, 548-ball count, physical ball numbering, signal naming, and symbol-to-footprint associations appear internally consistent, with spot-checked ball assignments matching the official NXP ball map. The main deficiencies are metadata quality and ERC semantics rather than an observed pin-map failure: wrong
Logic / AND classification, FCBGA/LFBGA naming inconsistency, incomplete feature description, no pin descriptions, and every pin marked Unspecified. Exact footprint pad geometry remains the principal unverified manufacturing item.Audit scope
Part metadata
Key specifications
Symbol and pin audit
Pin metadata mismatches
Footprint audit
Flagged mismatches and risks
Definite metadata issues
Verification limitations / follow-up risks
Overall assessment
