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W55MH32

The W55MH32 is a high-security, low-power MCU featuring a powerful Cortex-M3 core with rich peripherals in iMCU series. Its provides an advanced IoT connectivity to work on consumer and industrial applications.

ARM Cortex-M3

Support 32-bit ARM Cortex-M3 (216MHz)

66(L)/36(Q) GPIOs

Support 66(W55MH32L), 36(W55MH32Q) GPIOs

SPI(2), UART(4 to 5)

Support SPI 2ch, UART 5ch(W55MH32L)/4ch(W55MH32Q)

Timer(15), Watchdog(2)

Support 10x16-bit Timer, 2x16-bit motor PWM, Wathdog(2), 2x16-bit base Timer

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Key Features

DMA(12)

Support DMA 12ch

Flash 1M/SRAM 96KB/OTP

Support Flash 1Mbytes, SRAM 96KB and OTP(32 Byte)

AES, DES, SHA

Support Hardware Encrytion algorithm unit(AES, DES, SHA) and TRNG

Ethernet MACPHY

Support 10BaseT/100BaseTX Ethernet MACPHY

CAN, USB 2.0 FS

Support CAN(2.0B Active), USB 2.0 Full-speed

3.3V -40℃ to 85℃

Support 3.3V Operation (2.7V to 3.6V)

66QFN, 36QFN

Support 66QFN(W55MH32L), 36QFN(W55MH32Q)

Features

  • Core: 32-bit Arm® Cortex®-M3 Core − Up to 216MHz operation
  • Hardwired TCP/IP stack
  • 1024K bytes of Flash memory
  • 96K bytes of SRAM
  • 12-channel DMA controller
  • Hardware encryption algorithm unit
  • Generate sequence of true random numbers
  • 66 (W55MH32L) / 36 (W55MH32Q) GPIO pins
    • Up to 12 different Peripherals
    • 5 (W55MH32L) / 4 (W55MH32Q) USARTs
    • 2 SPI controllers
    • 1 multiplexed I2S controllers(only W55MH32L)
    • 2 I2C controllers
    • CAN interface
    • USB 2.0 full-speed controller
    • SDIO interface (only W55MH32L)
  • Supported Network Protocols
    • TCP
    • UDP
    • IPv4
    • ICMP
    • ARP
    • IGMP
    • PPPoE

Documentation

Datasheet

Name Description Notes
W55MH32 Datasheet[EN] Technical specifications and features of the W55MH32 chip - W55MH32 Datasheet[EN] link
W55MH32 Datasheet[CN] Technical specifications and features of the W55MH32 chip - W55MH32 Datasheet[CN] link

Technical Documents

Name Description Notes
W55MH32 User Manal[EN] Technical specifications and features of the W55MH32 chip - W55MH32 User Manal[EN] link
W55MH32 User Manal[CN] Technical specifications and features of the W55MH32 chip - W55MH32 User Manal[CN] link

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Evaluation Boards & Related modules

Complementary WIZnet solutions with diverse interfaces and performance levels

Evaluation Boards

W55MH32Q-EVBlink

The W55MH32Q-EVB is a high-performance evaluation board featuring the W55MH32Q microcontroller, designed for industrial and IoT applications. With a 216MHz 32-bit processor, built-in TCP/IP offload engine, 10/100M Ethernet MAC & PHY, and versatile digital peripherals like USB-C, SPI, I2C, USART, and CAN, it enables seamless connectivity. Equipped with encryption, CRC unit, DMA, and real-time monitoring, this board is ideal for networking, security, and automation projects.

W55MH32L-EVBlink

The W55MH32L-EVB is a full-featured evaluation board based on the W55MH32L microcontroller, designed for industrial and IoT applications. It features a 216MHz 32-bit processor, built-in TCP/IP offload engine, 10/100M Ethernet MAC & PHY, and a wide range of digital peripherals, including USB-C, SPI, I2C, USART, CAN, SDIO, and Arduino-compatible pin headers for easy prototyping. With built-in encryption, CRC unit, DMA, real-time monitoring, and SD card support, this board is ideal for advanced networking, security, automation, and data logging projects.

W55MH32

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