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NXP MCX W23

MCX W23 - Ultra-Low Power Bluetooth® Low Energy Solution With Arm® Cortex® M33 TrustZone® for IoT

The MCX W23 provides connectivity solutions for IoT applications. The MCX W23 device constitute a highly integrated, single chip, ultra-low-power Bluetooth^® Low Energy 5.3 wireless transceiver with embedded microcontroller and flash.

Because of the integrated ultra-low-power radio and flash, the MCX W23 provides extended battery lifetime. The MCX W23 is a cost-effective solution within a small solution area required for body-worn / battery-powered sensors and actuator applications.

Enable with the flexible Buck and Boost option of the DCDC converter, the MCX W23 runs directly from a large range of batteries.

Built with advanced security in mind, the MCX W23 is part of the Certified Edgelock Assurance program (SESIP Level 2 / PSA Level 2).

MCX W23 and enablement (documentation, software and boards) are available. For additional information and sample availability, contact support or your local sales representative.

Features

Application Processor
- Arm^® Cortex^®–M33F
- with TrustZone^® running up to 32 MHz
- MCX W236: 1 MB Flash and 128 KB RAM
- MCX W235: 512 KB Flash and 96 KB RAM
- 256 KB ROM
- 16 KB data RAM and 512 bytes sequencer RAM
Boot Modes
- Autonomous boot from flash
- In-system programming (ISP)
- Secure bootloader
General
- WLCSP package: < 6.56 mm2 with 37 bumps
- QFN package: 5mm x 5mm with 40 pins
- Low number of external passive components
- Operating temperature: -40 °C to +85 °C
Interfaces
- 3 FlexComm interfaces. Each FlexComm interface can be selected by software to be a USART, SPI, or I²C interface
- SPIFI with XIP feature uses up to four data lines to access off-chip SPI/DSPI/QSPI flash memory
- Up to 23 GPIOs
Power Modes
- MCXW23xB
  - High-voltage supply mode (HV_SM) for 3 V battery support using integrated buck DC-DC converter
  - External regulated supply mode (XR_SM) for PMIC support (bypassing the integrated DC-DC converter)
- MCXW23xA
  - Low-voltage supply mode (LV_SM) for 1.5 V battery support using integrated boost DC-DC converter

RF
- A 2.4 GHz RF transceiver supporting Bluetooth Low Energy 5.3
- Sensitivity -94 dBm in Bluetooth Low Energy 2 Mbps
- Sensitivity -97 dBm in Bluetooth Low Energy 1 Mbps
- Sensitivity -100 dBm in Bluetooth Low Energy 500 kbps
- Sensitivity -102 dBm in Bluetooth Low Energy 125 kbps
- Flexible RF transmitter level configurability:
- TX mode 1 (TXM1): Range from -31 dBm to +2 dBm when VDD_RF exceeds 1.1 V
- TX mode 2 (TXM2): Range from -28 dBm to +6 dBm when VDD_RF exceeds 1.7 V
Security
- AES-256 encryption/decryption engine with PUF keys
- Secure hash algorithm (SHA1 and SHA2-256)
- PUF silicon fingerprint
- PRINCE encryption module
- Secure GPIO
- True random number generator (TRNG) compliant to NIST SP 800-90B, NIST SP 800-22
Timers
- 32-bit real-time clock (RTC) with 1 s resolution running in the always-on power domain
- Additional timer in the RTC can be used for wake up from all low power modes with 1 ms resolution
Product Longevity Program
- This product is included in the NXP Product Longevity program ensuring a stable supply of products for your embedded designs
MCUXpresso Developer Experience
- MCUXpresso ecosystem support
  - Support VSCODE with MCUXpresso plugin
  - Pin, clock, peripheral, security and memory config tools
  - Security programming and provisioning tools
  - Software development kit (SDK) connectivity stack and examples available via github

Applications

Industrial

Appliances
Companion Chip for UWB Tracking Tags and Localization Applications
Continuous Glucose Monitoring (CGM)
Home Control Panel
Patient Monitor
Respiratory Care

Benefits

Small form-factor to design light-weight miniaturized devices
Multiple low-power modes provide ultra-low energy data transfers and a longer battery life
Rich set of security features enabling safe and private data handling

Block diagram

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MCX W Series MCUs

The MCX W series are secure, wireless MCUs designed to enable more compact, scalable and innovative designs for the next generation of smart and secure connected devices.