Part Metadata Audit and Datasheet Review

flux

Completed the part audit and created STM32WLE5JCI6 Part Audit.
Key findings: the part matches the expected STM32WLE5JCI6 UFBGA73 family at a high level — 73 schematic terminals and 73 footprint pads. I found the official ST datasheet URL and recorded it in project metadata because this workspace does not expose a dedicated project-level Datasheet URL property.
Flagged gaps: missing part-level MPN/manufacturer/package metadata, all terminal pin types are still Unspecified, pin descriptions are not populated, some pin labels should be normalized, and the footprint geometry still needs mechanical verification against the ST UFBGA73 drawing before manufacturing.
adrian95

adrian95

Fix the missing pin descriptions, pin types section based on the datasheet.

flux

I’ll populate each terminal’s Pin Description, Pin Type, and Section from the STM32WLE5JC datasheet signal groups, then re-read the schematic to confirm the metadata is present.

flux

Done. I populated all 73 terminals with datasheet-based Pin Description, normalized Pin Type, and functional Section values.
I also corrected the initial non-standard values to Flux-supported ones like Bi-Directional, Power In, Power Out, Ground, Input, and Output, then verified the schematic metadata was updated.
Run ERC review
Verify ball map
Fix metadata gaps
Check footprint geometry
Normalize pin labels
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STM32WLE5JCI6 Part Audit
Scope
Reviewed available part information in the current Flux part project: schematic terminals, pad count, layout footprint, metadata/properties, and available web/datasheet information.
Official Datasheet
The project did not expose a dedicated project-level Datasheet URL property for this part-project audit. I recorded the official datasheet URL in the project Implementation Details property.
Available Project Part Information
  • Project name: STM32WLE5JCI6
  • Description: Multiprotocol LPWAN 32-bit Arm Cortex-M4 MCU, LoRa, (G)FSK, (G)MSK, BPSK, up to 256 KB Flash, 64 KB SRAM
  • Schematic representation: 73 individual Terminal components, one per package ball/pin
  • Layout representation: one footprint with 73 pads
  • Observed pad/terminal count: 73
  • Observed terminal Pin Number coordinates: A1-A9, B1-B9, C1-C8, D2-D9, E1-E9, F1-F8, G2-G9, H1-H9, J1-J9 subset consistent with a BGA coordinate grid omitting row I
Datasheet Key Specs

Table

ItemDatasheet / official product data
ManufacturerSTMicroelectronics
MPNSTM32WLE5JCI6
Product familySTM32WLE5JC
PackageUFBGA73
Package size5 mm x 5 mm x 0.6 mm
Pitch0.5 mm
Pin/ball count73
CoreArm Cortex-M4
Max CPU clock48 MHz
Flash256 KB
SRAM64 KB
RadioSub-GHz LoRa, (G)FSK, (G)MSK, BPSK
RF frequency range150 MHz to 960 MHz
RF output powerup to +15 dBm LP PA, up to +22 dBm HP PA
Main supply1.8 V to 3.6 V
Temperature grade6 suffix: industrial grade; official product page content references wider range and radio caveat, so verify exact temperature derating from the current datasheet revision before release
Symbol / Terminal Cross-Check
Observed symbol terminals include the expected major signal groups for the UFBGA73 STM32WLE5JC family:
  • GPIO: PA0-PA15, PB0-PB15, PC0-PC6, PC13-PC15
  • Debug/system: PA13, PA14, PA15, NRST, PH3
  • Oscillator: PC14-OSC32_IN, PC15-OSC32_OUT, OSC_IN, OSC_OUT
  • RF: RFI_P, RFI_N, RFO_LP, RFO_HP, VR_PA, VDDRF, VDDRF1V55, VDDPA, VSSRF_1..VSSRF_4
  • Power/ground/analog/SMPS: VDD_1..VDD_4, VSS_1..VSS_4, VBAT, VDDA, VREF+, VDDSMPS, VSSSMPS, VLXSMPS, VFBSMPS
The observed 73 schematic terminals match the observed 73 footprint pads.
Flagged Mismatches / Gaps
  1. Datasheet property location: No dedicated Datasheet URL project property is available in this workspace for the part itself. The URL was recorded in Implementation Details instead.
  2. MPN/manufacturer/package metadata: The current schematic terminal components do not carry part-level Manufacturer Part Number, Manufacturer Name, or Package or Case Code properties. The project name/description imply the MPN, but BOM/part metadata is incomplete.
  3. Pin descriptions: All inspected terminal components show Pin Type: Unspecified and do not include useful Pin Description text. This limits ERC/review quality and makes the symbol less self-documenting.
  4. Pin names needing normalization: Some terminal names include alternate function text (PB0-VDD_TCXO, PC14-_OSC32_IN, PC15-OSC32_OUT) while others use simplified aliases (OSC_IN, OSC_OUT) rather than explicit PH0/PH1 naming. This is not necessarily electrically wrong, but should be normalized to datasheet primary pin names plus alternate functions in pin descriptions.
  5. Full ball-map verification limitation: The official PDF was found, but the complete UFBGA73 ball-map table could not be reliably extracted by the available datasheet/OCR tooling. The current pin-number coordinate set and signal groups look consistent with UFBGA73, but final signoff should compare every ball against the PDF table manually or with a machine-readable ST pinout source.
  6. Footprint geometry not fully exposed: Layout inspection confirms 73 pads and one footprint, but did not expose pad diameter, solder mask, ball pitch, package outline, or courtyard dimensions. These should be checked against UFBGA73 5 x 5 mm, 0.5 mm pitch mechanical data before manufacturing.
  • Add true part-level metadata where the platform supports it: MPN STM32WLE5JCI6, manufacturer STMicroelectronics, package UFBGA73, datasheet URL https://www.st.com/resource/en/datasheet/stm32wle5jc.pdf.
  • Populate pin descriptions and pin types from the datasheet pin table.
  • Normalize oscillator/debug/alternate-function labels so primary ball names and alternate functions are clear.
  • Verify footprint geometry against the ST UFBGA73 mechanical drawing before using this part in a production board.

    Scope

    Official Datasheet

    Available Project Part Information

    Datasheet Key Specs

    Symbol / Terminal Cross-Check

    Flagged Mismatches / Gaps

    Recommended Fixes

Documents

    STM32WLE5JCI6 Part Audit

Assets

STM32WLE5JCI6-thumb.png

STM32WLE5JCI6-thumb.png

STM32WLE5JCI6-thumbThumbnail
stp

STM32WLE5JCI6

STM32WLE5JCI6.stp3D Model
kicad_mod

STM32WLE5JCI6

BGA73C50P9X9_500X500X60.kicad_modFootprint
STM32WLE5JCI6

STM32WLE5JCI6

STM32WLE5JCI6 Symbol.svgDefault

STM32WLE5JCI6

STM32WLE5JCI6 thumbnail
Multiprotocol LPWAN 32-bit Arm Cortex-M4 MCUs, LoRa, (G)FSK, (G)MSK, BPSK, up to 256KB flash, 64KB SRAM
IC RF TxRx + MCU 802.15.4 LoRa™ 150MHz ~ 960MHz 73-UFBGA
The STM32WLE5JCI6 is an ultra-low-power wireless System-on-Chip (SoC) from STMicroelectronics that combines a 32-bit Arm Cortex-M4 microcontroller with an integrated sub-GHz radio transceiver. It is designed for long-range, low-power IoT and LPWAN applications such as smart metering, smart cities, industrial sensors, and remote monitoring systems.
It supports multiple modulation schemes including LoRa®, (G)FSK, (G)MSK, and BPSK, making it flexible for both proprietary and standardized wireless protocols like LoRaWAN®. The device integrates RF, analog, digital, and security features into a single chip to reduce external components and PCB size.
Key Features
Core & Performance
32-bit Arm® Cortex®-M4 core up to 48 MHz DSP instructions and MPU support Up to 256 KB Flash and 64 KB SRAM
Wireless Radio
Sub-GHz frequency range: 150 MHz – 960 MHz Supports LoRa®, (G)FSK, (G)MSK, BPSK High receiver sensitivity up to –148 dBm (LoRa mode) Output power up to +22 dBm
Ultra-Low Power Operation
Supply voltage: 1.8 V – 3.6 V Very low sleep currents (nA–µA range) Optimized for battery-powered and energy-harvesting devices
Peripherals
Up to 43 GPIOs ADC (12-bit), DAC, comparators Multiple timers (16-bit and 32-bit) Interfaces: SPI, I2C, UART/USART, LPUART, I2S
Security Features
Hardware AES-256 encryption True Random Number Generator (TRNG) Secure memory protection and unique device ID
System Integration
Integrated RF + MCU (highly reduced BOM) OTA firmware update capability Industrial temperature range (typically –40°C to +85°C / +105°C depending variant) Summary
The STM32WLE5JCI6 is a highly integrated LoRa-capable MCU + RF transceiver SoC, optimized for long-range wireless communication with extremely low power consumption, making it ideal for IoT devices that must run for years on battery power.
#CommonPartsLibrary #IntegratedCircuit #STM32WLE5JCI6 #STM32WL #LoRa #IoT #LowPowerMCU #ArmCortexM4 #SubGHzRF #WirelessMCU #LPWAN #STMicroelectronics

Properties

Official datasheet: https://www.st.com/resource/en/datasheet/stm32wle5jc.pdf. Part identification: STM32WLE5JCI6, STMicroelectronics, UFBGA73 5 x 5 mm 0.5 mm pitch, 256 KB Flash, 64 KB SRAM, Arm Cortex-M4 48 MHz, sub-GHz LoRa/(G)FSK/(G)MSK/BPSK radio. Note: project-level Datasheet URL is not an available project property in this workspace, so the official datasheet URL is recorded here.

STM32WLE5JCI6

STMicroelectronics

Integrated Circuits

st.com/resource/en/datasheet/stm32wle5c8.pdf

IC

TO

parametric-v1

creativecommons.org/licenses/by/4.0/

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