In April 2025, Megahunt and Wiznet formally announced to deliver an MCU of Arm Cortex M3, with:
True Random Number Generator, Hardware Encryption Algorithm Unit, 1024KB Flash, 96KB SRAM, 10/100M Ethernet MAC and PHY, Hardware Internet controller with an integrated full TCP/IP stack, USB, CAN, 17 Timers, 3 ADCs, 2 DACs, up to 12 communication interfaces, and even more resources.
This device part number is MH2153A, with two packages: QFN100 (MH2153AL) and QFN68(MH2153AQ).
Features:
■ Core: 32-bit Arm Cortex-M3 core
− Up to 216MHz operation frequency,2.54 DMips/MHz (CoreMark1.0)
− Single-cycle multiplication and hardware division
■ Memories
− 1024K bytes of Flash memory
− 96K bytes of SRAM
■ Clock, reset and supply management
− 2.0～3.6V application supply and I/Os
− POR, PDR, and programmable voltage detector (PVD)
− 4～16MHz crystal oscillator
− Internal 8MHz factory-trimmed RC
− Internal 40kHz RC oscillator with calibration
− 32kHz RTC oscillator with calibration
■ Low power
− Sleep, Stop and Standby modes
− supply for RTC and backup registers
■ 3 x 12-bit, 1 µs A/D converters (up to 12 channels)
− Conversion range: 0 to 3.6V
− Temperature sensor
■ 2 x 12-bit D/A converters
■ DMA：12-channel DMA controller
■ Ethernet：10/100M Ethernet MAC and PHY
− Supports Hardwired TCP/IP Protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
− Supports 8 independent sockets simultaneously
− Internal 32K bytes Memory for Tx/Rx Buffers
− 10BaseT/100BaseTX Ethernet PHY embedded
− Support Auto Negotiation (Full and half duplex, 10 and 100-based)
− LED outputs (Full/Half duplex, Link, Speed, Active)
■ Debug mode
− Serial wire debug (SWD) & JTAG interfaces
− Embedded Tracking Module (ETM)
■ I/O ports
− 66(MH2153AL) / 36(MH2153AQ) multi-function bidirectional I/O ports, all mappable on 16 external interrupts
− All GPIOs can be forced to configure pull-up and pull-down resistors
■ Enhanced CRC calculation unit
■ 17 Timers
■ Up to 12 communication interfaces
− Up to 2 x I2C interfaces (support SMBus/PMBus)
− Up to 5(MH2153AL) / 3(MH2153AQ) x USARTs
− Up to 2 x SPIs, 1 multiplexed with I2S interface
− CAN interface (2.0B Active)
− USB 2.0 full-speed interface (Optional internal 1.5K pull-up resistor)
− SDIO interface (only MH2153AL)
■ Hardware encryption algorithm unit
− Built-in hardware algorithm(DES、AES、SHA)
− Provide a complete high-performance algorithm library
■ TRNG：generate sequence of true random numbers
− Four independent true random sources, which can be configured individually
− 128bit random numbers can be generated at one time
− Optional digital post-processing function
− Attack detection
■ SENSOR：voltage & temperature sensor alarm
− VBAT and VDD voltage can be detected independently
− Provide temperature detection sensor
− Optional reset or interrupt after alarm