NXP Semiconductors FRDM-KW38
- Part No.:
- FRDM-KW38
- Manufacturer:
- NXP Semiconductors
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
FRDM-KW38.pdf
- Description:
- KW38 FREEDOM DEV BOARD
- Quantity:
- Payment:

- Shipping:

Inventory:1,290
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
FRDM-KW38 from NXP is a Freedom Development Platform built around the KW38Z dual-core Arm Cortex-M0+/M4 microcontroller, featuring integrated Bluetooth Low Energy 5.0 radio, 2.4 GHz RF transceiver, 512 KB flash, 128 KB RAM, and on-board OpenSDA debug interface. It supports out-of-box beacon, sensor-to-cloud, and wireless connectivity demos.
For engineers reviewing the FRDM-KW38 datasheet, FRDM-KW38 pinout, FRDM-KW38 application, or FRDM-KW38 equivalent, this board enables rapid prototyping of BLE-enabled IoT edge nodes, low-power wireless sensor networks, and automotive-grade LIN/CAN gateway evaluation with pre-certified RF compliance.
Technical Context
The FRDM-KW38 integrates the KW38Z MCU with dual Arm cores, hardware-accelerated cryptography, and a certified Bluetooth LE 5.0 stack. It includes 32 MHz and 32 kHz crystals for precise timing, an onboard thermistor, RGB LED, push buttons (SW2/SW3), and F-antenna + SMA connector for RF flexibility.
It features dedicated headers for CAN, LIN, and general-purpose I/O (e.g., PTA16–PTA19, PTC1–PTC19, PTB0–PTB18), ADC inputs (ADC0_DP0/DM0), voltage rails (P5V_USB, P1V8_3V3, 9V_IN), and SWD debug via OpenSDA MCU (FWOS8700CQ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual-core Arm Cortex-M0+ (radio control) and Cortex-M4F (application processing) for real-time RF coexistence and deterministic application execution. |
| Wireless Standard | Bluetooth Low Energy 5.0, certified per EU RED 2014/53/EU with +5 dBm max output in 2360–2483 MHz band. |
| Memory | 512 KB on-chip flash and 128 KB SRAM enable full BLE stack + application firmware without external memory. |
| Debug Interface | On-board OpenSDA circuit (FWOS8700CQ) provides USB-to-SWD conversion for programming and real-time debugging without external tools. |
| Timing Sources | 32 MHz crystal for system clock and 32 kHz crystal for RTC/low-power mode timing-both required for BLE sleep/wake synchronization. |
| I/O Expansion | Multiple headers (J1–J4, J32) expose GPIO, ADC, UART, SPI, I²C, CAN, LIN, and analog reference (VREFH) for peripheral integration. |
Availability
FRDM-KW38 is available at Aetrix Electronics and suitable for Bluetooth LE beacon deployment, industrial wireless sensor node development, and automotive LIN/CAN protocol gateway validation requiring stable component supply and regulatory-compliant RF design support.
Supply support for FRDM-KW38 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The FRDM-KW38 belongs to NXP's Freedom Development Platform family, designed to accelerate evaluation and prototyping of ultra-low-power, multi-protocol wireless MCUs targeting certified BLE 5.0 end-node and gateway applications.
FAQ
What is the primary function of the FRDM-KW38?
The FRDM-KW38 is a fully assembled, ready-to-run development platform centered on the KW38Z MCU. Its primary function is to enable rapid evaluation and prototyping of Bluetooth Low Energy 5.0 applications-including beacons, sensor networks, and wireless gateways-with pre-integrated RF, debug, and peripheral interfaces. The FRDM-KW38 eliminates the need for custom carrier boards during early-stage design.
Does the FRDM-KW38 include a certified Bluetooth radio?
Yes, the FRDM-KW38 integrates the KW38Z MCU with a fully certified Bluetooth LE 5.0 radio compliant with EU Radio Equipment Directive 2014/53/EU. It operates in the 2360–2483 MHz band with a maximum transmitted power of +5 dBm, and includes both F-antenna and SMA connector options for RF validation and antenna tuning. This certification applies directly to the FRDM-KW38 board.
Can the FRDM-KW38 be used for CAN or LIN communication?
Yes, the FRDM-KW38 features dedicated CAN and LIN headers (labeled "CAN Header" and "LIN Header") that connect directly to the KW38Z MCU's on-die peripherals. These interfaces support physical-layer signal conditioning and are validated for automotive-grade protocol evaluation. The FRDM-KW38 allows developers to prototype gateway functionality between BLE and legacy vehicle buses without additional level-shifting hardware.
What debug capabilities does the FRDM-KW38 provide?
The FRDM-KW38 includes an onboard OpenSDA debug circuit (FWOS8700CQ) that implements SWD over USB, enabling programming, real-time debugging, and virtual COM port communication. No external debugger is needed-just a micro-USB cable connects the FRDM-KW38 to a host PC. All debug functions are accessible through standard IDEs supporting CMSIS-DAP, including MCUXpresso IDE and Keil µVision. This capability is integral to the FRDM-KW38 design.
Is the FRDM-KW38 compatible with NXP's IoT Toolbox mobile app?
Yes, the FRDM-KW38 ships with preloaded firmware that supports immediate interaction with the NXP IoT Toolbox mobile app. When powered via USB, the FRDM-KW38 broadcasts as a BLE beacon and appears in the app's "Beacons" demo. This out-of-box experience validates RF functionality, device enumeration, and service discovery-confirming correct operation of the FRDM-KW38 before any code modification.
FRDM-KW38 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Transceiver; Bluetooth® 5.x (BLE)
- Frequency:
- 2.4GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- KW38
FRDM-KW38 FAQ
1.How can I place an order for FRDM-KW38 through Aetrix?
Please submit a Request for Quotation (RFQ) for FRDM-KW38 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for FRDM-KW38 reliable?
The price and inventory of FRDM-KW38 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FRDM-KW38 is usually 5 days.
3.What payment methods are accepted for FRDM-KW38?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FRDM-KW38 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FRDM-KW38?
FRDM-KW38 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FRDM-KW38 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for FRDM-KW38?
For technical support, including FRDM-KW38 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FRDM-KW38 requirements.
6.How does Aetrix verify that FRDM-KW38 is sourced from the original manufacturer or authorized distributors?
All FRDM-KW38 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FRDM-KW38 meets industry standards.
7.What is the process for return or replacement of FRDM-KW38?
All FRDM-KW38 units undergo pre-shipment inspection (PSI). If there is an issue with FRDM-KW38, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The FRDM-KW38 part is unused and in its original packaging.
Return procedure for FRDM-KW38:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FRDM-KW38 Tags

-
113991054
Seeed Technology Co., Ltd

-
SC0918
Raspberry Pi

-
113991114
Seeed Technology Co., Ltd

-
ESP32-C6-DEVKITM-1-N4
Espressif Systems

-
ESP32-DEVKITM-1
Espressif Systems

-
C008
M5Stack Technology Co., Ltd.

-
ESP32-C3-DEVKITC-02
Espressif Systems

-
ESP32-C6-DEVKITC-1-N8
Espressif Systems

-
DFR0478
DFRobot

-
102010448
Seeed Technology Co., Ltd

-
ESP32-DEVKITC-32E
Espressif Systems

-
ESP32-DEVKITC-32UE
Espressif Systems
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

