NX40 Module Specifications
This page separates nRF52840 SoC specifications from NX40 module design data. NX40-specific RF, current, and voltage measurements are not available. Values identified as SoC specifications come from the Nordic nRF52840 Product Specification and are not measured or guaranteed NX40 module values.
Note: Use the released NX40 datasheet, schematic, BOM, controlled mechanical drawing, and qualification report for production design.
Key Specifications
| Item | Specification | Status |
|---|
| Main SoC | Nordic Semiconductor nRF52840-CKAA | Component identification |
| CPU | 64 MHz Arm Cortex-M4 with FPU | SoC capability |
| SoC memory | 1 MB Flash, 256 kB RAM | SoC capability |
| Additional Flash | 32 Mbit on 32 models; none on 00 models | Exact device/BOM pending approval |
| Radio | Bluetooth Low Energy PHYs and IEEE 802.15.4 at 250 kbps | Availability depends on software and qualification |
| TX setting | −20 to +8 dBm | nRF52840 reference range |
| USB | USB 2.0 full-speed device | Host implementation requires review |
| Interfaces | GPIO, ADC, UART/UARTE, SPI, QSPI, TWI/I²C, PWM, PDM, I²S, NFC-A, SWD | Pin assignment depends on firmware |
| Package | LGA surface-mount module | KORLINX design data |
| Size | 9.5 × 9.5 × 1.95 mm nominal | Tolerances pending controlled drawing |
SoC Recommended Operating Conditions
| Parameter | Min. | Nom. | Max. | Unit | Condition |
|---|
| VDD | 1.7 | 3.0 | 3.6 | V | nRF52840 SoC, normal-voltage mode |
| VDDH | 2.5 | 3.7 | 5.5 | V | nRF52840 SoC, high-voltage mode |
| VBUS | 4.35 | 5.0 | 5.5 | V | nRF52840 SoC USB supply; does not alone define NX40 power routing |
| Ambient temperature | −40 | 25 | +85 | °C | nRF52840 SoC range; NX40 module qualification not measured |
SoC Absolute Maximum Ratings
| Parameter | Min. | Max. | Unit | Basis |
|---|
| VDD | −0.3 | +3.9 | V | nRF52840 component limit |
| VDDH | −0.3 | +5.8 | V | nRF52840 component limit |
| VBUS | −0.3 | +5.8 | V | nRF52840 component limit |
| GPIO voltage, VDD ≤ 3.6 V | −0.3 | VDD + 0.3 | V | nRF52840 component limit |
| RF input | — | +10 | dBm | nRF52840 component limit |
| Storage temperature | −40 | +125 | °C | SoC limit; module qualification pending |
These nRF52840 limits are stress limits and do not describe normal operation. Module ESD and production limits remain subject to NX40 qualification.
Nordic SoC RF and Current Specifications
These values describe the nRF52840 SoC under Nordic's stated conditions. They do not include NX40 module losses, additional Flash current, antenna performance, or customer-board effects. Current values below are typical SoC values at 3 V and 25°C; the radio rows identify the DC/DC conditions used.
| Item | Typical / range | Nordic condition |
|---|
| BLE 1 Mbps sensitivity | −95 dBm | nRF52840 receiver specification |
| BLE coded 125 kbps sensitivity | −103 dBm | nRF52840 receiver specification |
| IEEE 802.15.4 sensitivity | −100 dBm | 250 kbps SoC receiver specification |
| TX current at +8 dBm | 14.8 mA | DC/DC, 3 V |
| RX current | 4.6 mA | BLE 1 Mbps, DC/DC, 3 V |
| System OFF current | 0.40 µA | 3 V, no RAM retention |
See Nordic's nRF52840 radio electrical specification and current-consumption conditions.
NX40 Module Characterization
KORLINX has not completed detailed NX40 module-level RF, voltage, or current measurements. No numeric module-level performance values are published on this page. Validate the final hardware, firmware, power topology, antenna, and enclosure for the intended application.
Software Capability Boundary
| Capability | Hardware basis | Evidence required for an NX40 product claim |
|---|
| nRF Connect SDK / Zephyr | Supported by the underlying Nordic platform | Tested SDK version, board target, repository, and release notes |
| Bluetooth Low Energy | Supported radio PHY | Bluetooth qualification identifiers and tested controller/host stack |
| Thread / Zigbee | IEEE 802.15.4 radio capability | Qualified stack version and interoperability evidence |
| Matter over Thread | Software dependent | Matter SDK version, certification scope, and validated application |
| USB | Full-speed device hardware | Validated host design and firmware example |
| Additional Flash | 32 variants only | Confirmed JEDEC ID, driver, modes, frequency, and power management |
Regulatory and Environmental Status
| Evidence item | NX40i | NX40E | Release requirement |
|---|
| KC certification ID | Pending | Pending | Publish exact ID and covered models |
| Approved antenna | Integrated | Pending | Record external antenna part number, gain, and cable |
| Bluetooth qualification | Pending | Pending | Publish QDID/DID and declaration owner |
| FCC / ISED / CE / UKCA / Japan | Pending | Pending | Do not imply modular approval without identifiers |
| RoHS / REACH | Pending | Pending | Supplier declaration and applicable scope |
| PSA Certified claim | Not established for the module | Not established for the module | Clarify whether a claim applies only to an SDK or platform configuration |
| Parameter | Nominal value | Status |
|---|
| Length | 9.5 mm | Tolerance pending |
| Width | 9.5 mm | Tolerance pending |
| Height | 1.95 mm with shield | Maximum and tolerance pending |
| Weight | < 0.5 g | Target; measured specification pending |
| Package | LGA | Pad finish and coplanarity pending |
| Pad pitch | 0.65 mm | Controlled land pattern pending |
Related Pages
