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M487 Ethernet Series

The NuMicro® M487 Ethernet series is a high performance, low power microcontroller powered by the Arm® Cortex®-M4F core with DSP extension. It can run up to 192 MHz with 175 µA/ MHz dynamic low power consumption. The 512 KB embedded dual bank Flash memory supports OTA ( Over-The-Air ) firmware upgrade, and the 160 KB embedded SRAM includes 32 KB cache to speed up external SPI Flash code execution. The factory pre-loaded bootloader delivers Secure Boot functionality to provide the code integrity check in embedded Flash memory. The built-in Secure Protection ROM provides a safe space for saving confidential program or data. One-Time Programmable ROM is also included for product life-cycle management.

The NuMicro® M487 Ethernet series supports operating voltage from 1.8V to 3.6V, and industrial operating temperature from - 40°C to 105°C. It is equipped with 10/100 Mbps Ethernet MAC with RMII and hardware cryptography engine. Package type includes LQFP64, LQFP128 and LQFP144.

Target Application:

Industrial IoT, Smart Home, IoT Gateway, Serial-to-Ethernet Converter, etc.

Key Features:

• Core
  - Up to 192 MHz Arm® Cortex ®-M4F delivering 1.25 DMIPS per MHz
  - DSP instruction set
  - Memory Protection Unit ( MPU )
   
• Memory
  - 512 KB zero-wait state Flash memory
  - 160 RAM, including 32 KB external SPI Flash cache
  - 4 KB Secure Protection ROM
  - 2 KB One-Time-Programmable ROM
   
• Cyclic Redundancy Calculation Unit
   
• 16-ch Peripheral DMA Controller
   
• External Bus Interface
  - LCD parallel interface, i80 mode
   
• Clocks
  - 4 to 24 MHz crystal oscillator
  - 32 kHz oscillator for RTC
  - Internal 12 MHz RC oscillator
  - Internal 10 kHz RC oscillator
  - Internal PLL up to 480 MHz
   
• RTC
  - 80 bytes of battery-powered backup registers
   
• Timer & PWM
  - Four 32-bit timers
  - Twelve Enhanced PWM with twelve 16-bit timers
  - Twelve Basic PWM with two 16-bit timers
  - One 24-bit count-down SysTick timer
  - One watchdog timer
  - One window watchdog timer
     
• Cryptography Accelerator
  - ECC ( P-521, B-571, K-571 )
  - AES-128, 192, 256
  - DES/ 3DES
  - SHA-160, 224, 256, 384, 512
  - HMAC
  - Random number generator
• Analog Peripheral
  - One 12-bit, up to 16-ch 5MSPS SAR ADC
  - Two 12-bit, 1 MSPS DAC
  - Two rail-to-rail comparators
  - Three operational amplifiers
   
• Communication Interface
  - Up to 6 low power UART interfaces ( 17 Mbps ) , including 2 LIN interfaces
  - Up to 3 ISO-7816 interfaces ( 3.4 MHz ) , supporting full duplex UART mode
  - Three I²C interfaces ( Up to 3.4 Mbps )
  - One SPI Flash interface ( Up to 96 MHz ) supports quad mode
  - One Quad- SPI interface ( Up to 96 MHz )
  - Up to 4 SPI / I²S interfaces ( SPI up to 96 MHz , I²S up to 192 kHz/16-bit )
  - One I²S interface ( 192 kHz/32-bit )
  - Two USCI interfaces, supporting configurable UART / SPI / I²C
  - Two CAN 2.0B interfaces
  - Two Secure Digital Host Controllers ( 50 MHz )
   
• Control Interface
  - Two quadrature encoder interfaces
  - Two 24-bit, 3-ch input capture timer/counter units
   
• Advanced Connectivity
  - USB 2.0 high speed device/ host/ OTG controller with on-chip PHY
  - USB 2.0 full speed device/ host/ OTG controller with on-chip PHY
  - 10/100 Mbps Ethernet MAC with RMII
     
• Operating Characteristic
  - Voltage range: 1.8V to 3.6V
  - Temperature range: - 40°C to +105°C