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The NuMicro® M481 Base series is a high performance, low power microcontroller powered by the Arm® Cortex®-M4F core with DSP extension. Running up to 192 MHz with 175 or 130 µA/MHz dynamic power consumption provides excellent energy efficiency. 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 256 KB embedded Flash memory supports up to 4 configurable eXecute-Only-Memory regions, and the 128 KB embedded SRAM provides multi-level retention in standby power-down mode. The factory pre-loaded bootloader delivers Secure Boot functionality to check code integrity inside embedded Flash memory. One-Time Programmable ROM is also included for product life-cycle management.

The NuMicro® M481 Base series supports operating voltage from 1.8V to 3.6V, and industrial operating temperature from -40°C to 105°C. It is integrated with camera interface, 12-bit 5 MSPS ADC, and up to eight sets of high-speed UART interface. Package type includes QFN33, LQFP48, and LQFP64. The part number ended with 2A supports dual ADC for simultaneous sampling.


Target Application:
Gaming Accessory, Sensor Hub, Signal Processing, 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
  - 256 KB zero-wait state flash supports eXecute-Only-Memory (XOM)
  - 128 KB RAM (with 32 KB hardware parity check)
  - 2 KB One-Time-Programmable ROM for general purpose
   
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 (variation < ±0.25%)
  - Internal 12 MHz RC oscillator (variation < ±2%)
  - Internal 10 kHz RC with calibration
   
RTC
  - Independent VBAT power pin
  - 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
Analog
  - One 12-bit, 5 MSPS SAR ADC (up to 16 channels) with 0 to analog supply conversion range
  - One 12-bit, 1 MSPS DAC
  - Two rail-to-rail comparators
   
Communication Interfaces
  - Up to 8 low power UART interfaces (17 Mbps), including 2 LIN interfaces
  - Up to 1 ISO-7816 interface (3.4 MHz), supporting full duplex UART mode
  - Three I²C interfaces (Up to 3.4 Mbps)
  - Two Quad-SPI interfaces (Up to 96 MHz)
  - Up to 3 SPI/ I²S interfaces (SPI up to 96 MHz, I²S up to 192 kHz/16-bit)
  - One I²S interface (192 kHz/32-bit)
  - One Secure Digital Host Controllers (50 MHz)
   
Control Interfaces
  - Two quadrature encoder interfaces (QEI)
  - Two 24-bit, 3-ch input capture timer/counter units
   
Camera interface
  - CMOS Sensor interface with hardware 1-bit luminance output
     
Operating Characteristics
  -  Voltage range: 1.8V to 3.6 V
  -  Temperature range: -40°C to +105°C
     
IEC-60730 Class B compliance
     
Cryptography Accelerator
  - AES-256
  - True random number generator
 

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Part No. Check Disty Flash SRAM Data Flash ISP ROM PDMA I/O Timer UART ISO-7816-3 SPI I2C CAN LIN EBI I2S/ AC97 USB OTG USB Host USB Device PWM Comparator DAC ADC Audio Codec Touch Key RTC Tamper Detect (pin) Voltage Adjustable Interface ISP/ICP/IAP Package Operating Temp. Range (¢FXC ) Status SD Host Ethernet MAC Camera Interface QEI OP Amp. Crypto
M481LGAAE Check Disty None 256K 96K Configurable 4K 16 41 4*32-bit 8 3 7 5 - 2 4 - - - 24*16-bit 2 2*12-bit 12*12-bit - - Y - Y ISP, ICP, IAP LQFP48 -40 to +105 Mass Production 2 - - 2 2 -
M481LGCAE Check Disty None 256 K 128 K Configurable 4K 16 41 4*32-bit 6 1 4 3 - 2 3 - - - 24*16-bit 2 1*12-bit 12*12-bit - - VBAT 6 Y ISP, ICP, IAP LQFP48 -40 to +105 Mass Production 1 - 1 2 - AES
M481LIDAE Check Disty None 512K 160K Configurable 4K 16 41 4*32-bit 8 3 7 5 - 2 4 - - - 24*16-bit 2 2*12-bit 12*12-bit - - Y - Y ISP, ICP, IAP LQFP48 -40 to +105 Mass Production 2 - - 2 2 -
M481SGAAE Check Disty None 256K 96K Configurable 4K 16 52 4*32-bit 8 3 8 5 - 2 5 - - - 24*16-bit 2 2*12-bit 16*12-bit - - Y 1 Y ISP, ICP, IAP LQFP64 -40 to +105 Mass Production 2 - - 2 2 -
M481SGCAE Check Disty None 256 K 128 K Configurable 4K 16 52 4*32-bit 6 1 5 3 - 2 4 - - - 24*16-bit 2 1*12-bit 16*12-bit - - VBAT 6 Y ISP, ICP, IAP LFQP64 -40 to +105 Mass Production 1 - 1 2 - AES
M481SGCAE2A Check Disty None 256 K 128 K Configurable 4K 16 52 4*32-bit 6 1 5 3 - 2 4 - - - 24*16-bit 2 1*12-bit (8+8)*12-bit - - VBAT 6 Y ISP, ICP, IAP LFQP64 -40 to +105 Mass Production 1 - 1 2 - AES
M481SIDAE Check Disty None 512K 160K Configurable 4K 16 52 4*32-bit 8 3 8 5 - 2 5 - - - 24*16-bit 2 2*12-bit 16*12-bit - - Y 1 Y ISP, ICP, IAP LQFP64 -40 to +105 Mass Production 2 - - 2 2 -
M481ZGAAE Check Disty None 256K 96K Configurable 4K 16 26 4*32-bit 8 3 7 5 - 2 - 4 - - - 24*16-bit 2 2*12-bit 10*12-bit - - Y - Y ISP, ICP, IAP QFN33 -40 to +105 Mass Production 1 - - 1 1 -
M481ZGCAE Check Disty None 256 K 128 K Configurable 4K 16 26 4*32-bit 6 1 4 3 - 2 3 - - - 24*16-bit 2 1*12-bit 10*12-bit - - VBAT 6 Y ISP, ICP, IAP QFN33 -40 to +105 Mass Production 1 - 1 2 - AES
M481ZIDAE Check Disty None 512K 160K Configurable 4K 16 26 4*32-bit 8 3 7 5 - 2 - 4 - - - 24*16-bit 2 2*12-bit 10*12-bit - - Y - Y ISP, ICP, IAP QFN33 -40 to +105 Mass Production 1 - - 1 1 -

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