Part Review and Datasheet Update

flux

Completed the requested terminal sectioning: all 74 terminals now have functional Section and Terminal Order properties, with Power first and Ground last. I also created the requested Flux tables in nRF52840-QIAA-T Terminal Section Table (nrf52840-qiaa-t-terminal-section-table), including grouped section blocks and notes for P0.05/AIN3 and VSS_PA.
cherepanyadima

cherepanyadima

Read the file and follow all instructions.
pasted-text-1782994423376.txt

flux

I’ll read the attached instructions, apply them to the part, and verify the result.

flux

Completed the requested review and saved the tables in nRF52840-QIAA-T Terminal Section Check (nrf52840-qiaa-t-terminal-section-check). Current terminal sectioning is consistent; rename recommendations are P0.05 → P0.05__AIN3 and VSS_P → VSS_PA.
Fix names, validate part
Fix terminal names
Add pin descriptions
Validate part data
Update review documents
VDD_4
Pin Number
AD14
VSS_P
Pin Number
F23
VBUS
Pin Number
AD2
P1.05
Pin Number
T23
VDD_3
Pin Number
W1
P0.02__AIN0
Pin Number
A12
XC2
Pin Number
A23
P0.28__AIN4
Pin Number
B11
P0.18__NRESET
Pin Number
AC13
SWDIO
Pin Number
AC24
P0.15
Pin Number
AD10
P1.14
Pin Number
B15
D-
Pin Number
AD4
P0.16
Pin Number
AC11
P0.19
Pin Number
AC15
VDD_1
Pin Number
A22
P0.07
Pin Number
M2
P0.08
Pin Number
N1
VSS_2
Pin Number
DP1
P0.14
Pin Number
AC9
DEC3
Pin Number
D23
P0.09__NFC1
Pin Number
L24
P0.26
Pin Number
G1
DEC4
Pin Number
B5
VDD_5
Pin Number
AD23
VSS_1
Pin Number
B7
P1.15
Pin Number
A14
P0.30__AIN6
Pin Number
B9
P1.07
Pin Number
P23
P0.17
Pin Number
AD12
P0.27
Pin Number
H2
DEC5
Pin Number
N24
P0.24
Pin Number
AD20
P0.05
Pin Number
K2
SWDCLK
Pin Number
AA24
DEC1
Pin Number
C1
P0.23
Pin Number
AC19
P1.10
Pin Number
A20
P0.29__AIN5
Pin Number
A10
P1.04
Pin Number
U24
P0.13
Pin Number
AD8
XC1
Pin Number
B24
P1.00
Pin Number
AD22
P0.25
Pin Number
AC21
P0.06
Pin Number
L1
P0.12
Pin Number
U1
P1.11
Pin Number
B19
P1.01
Pin Number
Y23
ANT
Pin Number
H23
P0.10__NFC2
Pin Number
J24
P0.00__XL1
Pin Number
D2
P1.03
Pin Number
V23
DEC2_1
Pin Number
A18
P0.31__AIN7
Pin Number
A8
P1.06
Pin Number
R24
P0.01__XL2
Pin Number
F2
DCC
Pin Number
B3
DEC2_2
Pin Number
E24
P1.12
Pin Number
B17
DCCH
Pin Number
AB2
P0.03__AIN1
Pin Number
B13
P1.08
Pin Number
P2
VDD_2
Pin Number
B1
DECUSB
Pin Number
AC5
P0.21
Pin Number
AC17
P0.20
Pin Number
AD16
P1.02
Pin Number
W24
P1.09
Pin Number
R1
P0.22
Pin Number
AD18
P0.04__AIN2
Pin Number
J1
P0.11
Pin Number
T2
D+
Pin Number
AD6
VDDH
Pin Number
Y2
P1.13
Pin Number
A16

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nRF52840-QIAA-T Part Review
Reviewed project / part
  • Project: silicon-yard/nrf52840-qiaa-t
  • Published part UID: aea5f379-2011-4dec-90ff-f60c1b3d78c6
  • MPN: nRF52840-QIAA-T
  • Manufacturer: Nordic Semiconductor
  • Project description: RF System on a Chip - SoC BLE ANT 2.4GHz SOC
  • Part type property: Integrated Circuits
  • Designator prefix: IC
  • Terminal / pad count in Flux: 74 schematic terminals and 74 footprint pads
Datasheet status
  • Existing Datasheet URL property was already set: http://www.mouser.com/ds/2/297/nRF52840_OPS_v0.5-1074816.pdf
  • I did not find a missing Datasheet property to populate; therefore no datasheet property update was required by the user instruction.
  • Quality note: the stored URL is an older Mouser-hosted Nordic Objective Product Specification v0.5 and uses HTTP. Prefer updating to HTTPS and, if available, Nordic’s current product specification from nordicsemi.com for final release validation.
  • HTTPS equivalent of current stored source: https://www.mouser.com/ds/2/297/nRF52840_OPS_v0.5-1074816.pdf
Key datasheet specs captured
  • Package / order code: QI = AQFN 7 mm × 7 mm, 73 pins, 0.5 mm pitch; AA = 1024 kB Flash, 256 kB RAM; T = tray packing.
  • Core: Arm Cortex-M4F, 64 MHz.
  • Radio: 2.4 GHz multiprotocol radio, BLE 1 Mbps/2 Mbps/long range 125 kbps and 500 kbps, IEEE 802.15.4 250 kbps, Nordic proprietary 1 Mbps/2 Mbps.
  • Memory: 1 MB Flash, 256 kB RAM.
  • USB: Full-speed 12 Mbps USB controller.
  • NFC: NFC-A tag interface.
  • Security: Arm CryptoCell 310.
  • ADC: 12-bit, 200 kSPS.
  • Supply ranges: VDD 1.7–3.6 V; VDDH 2.5–5.5 V; VBUS 4.35–5.5 V.
  • Operating temperature: −40 °C to +85 °C.
  • RF: single-ended antenna connection at ANT.
  • Package dimensions from cited datasheet: D/E nominal 7.00 mm; exposed/die pad D2/E2 nominal 4.85 mm; pad pitch nominal 0.5 mm; terminal b nominal 0.25 mm.
Symbol / pin assignment cross-check
The schematic is modeled as individual Terminal components rather than a single monolithic IC symbol. Each terminal has a Pin Number property corresponding to the AQFN grid coordinate or die pad.
Confirmed matches
The observed Flux terminal pin numbers match the datasheet QIAA pin assignment list for all critical groups checked:
  • Power: VDD at A22, B1, W1, AD14, AD23; VDDH at Y2; VBUS at AD2.
  • Ground / RF ground: VSS at B7, VSS_PA at F23, exposed die pad VSS at DP1.
  • USB: D− at AD4, D+ at AD6.
  • SWD: SWDCLK at AA24, SWDIO at AC24.
  • RF: ANT at H23.
  • LF/HF crystal pins: P0.00/XL1 at D2, P0.01/XL2 at F2, XC1 at B24, XC2 at A23.
  • NFC: P0.09/NFC1 at L24, P0.10/NFC2 at J24.
  • DEC/DCDC/USB regulator pins: DEC1 C1, DEC2 A18 and E24, DEC3 D23, DEC4 B5, DEC5 N24, DECUSB AC5, DCC B3, DCCH AB2.
  • GPIO banks P0 and P1 pin-number assignments otherwise align with the datasheet list reviewed.
Symbol / pin-description issues flagged
  • P0.05 at K2 is missing the alternate analog label AIN3; datasheet lists this as P0.05/AIN3. This is a naming/description omission, not a pin-number mismatch.
  • VSS_P at F23 likely represents VSS_PA; the terminal name is truncated/ambiguous. Pin number is correct, but the symbol label should be VSS_PA to match the datasheet.
  • All terminal Pin Type properties are Unspecified. For a reusable published IC part, these should be refined: power inputs for VDD/VDDH/VBUS, ground for VSS/VSS_PA/DP1, bidirectional/digital/analog-capable for GPIO, signal for RF/USB/crystal pins, etc.
  • No terminal-level Pin Description properties were visible. Adding descriptions would improve downstream schematic readability and ERC behavior.
Footprint cross-check
Footprint asset: nRF52840QIAAT.kicad_mod, description AQFN73.
Confirmed footprint items
  • Footprint outline: 7.0 mm × 7.0 mm fab outline, matching AQFN73 7 × 7 mm package.
  • Pad count: 73 perimeter/grid pads plus 1 exposed die pad = 74 footprint pads, consistent with Flux terminal count and datasheet die pad.
  • Pad pitch / locations: visible pad coordinates step at 0.5 mm increments, matching 0.5 mm pitch.
  • Perimeter/grid pad size: 0.300 mm circular pads; datasheet terminal b max is 0.30 mm, so nominal pad size is plausible for an AQFN land pattern.
  • Exposed pad: DP1 rectangular pad 4.950 mm × 4.950 mm. Datasheet D2/E2 max is 4.95 mm and nominal is 4.85 mm.
  • Pad names in the KiCad footprint match the AQFN grid coordinates from the datasheet, including A8 through AD23 and DP1.
Footprint issues / risks flagged
  • Exposed pad size uses 4.95 mm, matching the maximum exposed pad dimension rather than the nominal 4.85 mm. This may be acceptable for a raw package pad model but should be checked against Nordic’s recommended PCB land pattern before production.
  • The footprint asset includes circular SMD pads for all package pads. Since AQFN wettable/land pattern recommendations can differ from raw terminal geometry, confirm against the official Nordic/IPC land pattern before fabrication.
  • Flux computed footprint packageSize appears as zero in the layout tree even though the embedded KiCad footprint has a correct 7 mm fab outline. This may be a metadata omission rather than a geometry error.
Library metadata observations
  • The Flux library also contains LCSC-imported variants for NRF52840-QIAA-T with package AQFN-73_L7.0-W7.0-P0.50-BL-EP4.8, LCSC C3007766, JLCPCB Extended Part, but those library entries report no datasheet and manufacturer as Other/NORDIC.
  • Current Silicon Yard part has a datasheet URL and manufacturer property, but lacks richer structured electrical specs and pin types.
  • Library search flagged lifecycle status as NRND for the LCSC entries. Verify lifecycle directly with Nordic before selecting this part for a new production design.
  1. Rename terminal P0.05 to P0.05__AIN3 or add a pin description P0.05/AIN3.
  2. Rename terminal VSS_P to VSS_PA or add a pin description clarifying VSS_PA.
  3. Populate terminal Pin Type and Pin Description properties for all terminals.
  4. Replace/augment the Datasheet URL with Nordic’s current official HTTPS product specification if available; at minimum switch current URL to HTTPS.
  5. Validate the footprint against Nordic’s current recommended PCB land pattern before manufacturing, especially exposed pad size/paste segmentation and pad shape.

  • Reviewed project / part

  • Datasheet status

  • Key datasheet specs captured

  • Symbol / pin assignment cross-check

  • Confirmed matches

  • Symbol / pin-description issues flagged

  • Footprint cross-check

  • Confirmed footprint items

  • Footprint issues / risks flagged

  • Library metadata observations

  • Recommended corrections

Documents

  • nRF52840-QIAA-T Part Review

  • nRF52840-QIAA-T Terminal Section Table

  • nRF52840-QIAA-T Terminal Section Check

Assets

kicad_mod

nRF52840-QIAA-T

nRF52840QIAAT.kicad_modFootprint
nRF52840-QIAA-T

nRF52840-QIAA-T

nRF52840-QIAA-T Symbol.svgDefault
image5.png

image5.png

image5Thumbnail
stp

nRF52840-QIAA-T

nRF52840-QIAA-T.stp3D Model

nRF52840-QIAA-T

nRF52840-QIAA-T thumbnail
RF System on a Chip - SoC BLE ANT 2.4GHz SOC

Properties

nRF52840-QIAA-T

Nordic Semiconductor

Integrated Circuits

mouser.com/ds/2/297/nRF52840_OPS_v0.5-1074816.pdf

IC

parametric-v1

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