Microcontrollers(444)

Voice ICs(260)

M252KG6AE

The NuMicro® M252KG6AE is a low-power microcontroller based on Arm® Cortex®-M23 core for Armv8-M architecture. It runs up to 48 MHz with 256 Kbytes embedded Flash memory and 32 Kbytes embedded SRAM , 4 Kbytes Flash loader memory ( LDROM ) for In-System Programming ( ISP ) , The 32-bit low-power microcontrollers supports wide supply voltage from 1.8 ~ 5.5 V and operating temperature range from - 40 ℃ ~ + 105 ℃ .

The NuMicro® M252KG6AE behaves low power consumption in Normal Run mode 138 μA / MHz at 48 MHz , Idle mode 60 μA / MHz , power down mode 2.5 μA ( RTC on, RAM retention ) , power down mode 1.5 μA ( RTC off, RAM retention ) and Deep Power-down mode. The NuMicro® M252KG6AE series integrates RTC with independent VBAT voltage source pin to support low power mode with main power off and VBAT only. It’s low power, wide supply voltage and fast wake-up features make it suitable for battery-powered IoT applications.

The NuMicro® M252KG6AE provides 8 channels of Nuvoton proprietary interface “Programmable Serial I / O” ( PSIO ) capable of generating specific waveform to emulate arbitrary serial communication protocols to connect with specific peripherals by PSIO hardware engine. PSIO can be treated as extension of popular serial communication standard ( UART , SPI …etc. ) , niche serial communication standard ( Maxim 1-wire, Microchip single-wire UNI / O for EEPROM, Wiegand for card swipe ) and proprietary protocol ( SPI -like protocol for LED-lighting application…etc. ) . High elasticity and flexibility makes PSIO being a powerful and useful tool while connecting to diverse peripherals

The NuMicro® M252KG6AE series integrates Voltage Adjustable Interface ( VAI ) , with 6 I / O pins to support the 2nd I / O voltage from 1.65 ~ 5.5 V to save level shifter components while connecting to external devices.

The NuMicro® M251 / M252 series provides 1-region programable eXecute-Only-Memory ( XOM ) to secure critical program codes. The AES 256 / 192 / 128 hardware accelerator and Pseudo Random Number Generator ( PRNG ) are built-in for data encryption. A tamper pin is implemented to avoid malicious damage from hacker. Accompany with 96-bit Unique Identification ( UID ) and 128-bit Unique Customer Identification ( UCID ) to enhance the product security.

The NuMicro® M252KG6AE is equipped with plenty of peripherals such as Timers, Watchdog Timers, RTC, PDMA x 8, External Bus Interface ( EBI ) , UART x 3, Universal Serial Control Interface ( USCI ) x 3, Q SPI x 1, SPI / I²S x 1, I2C x 2, ISO-7816-3 x 1, GPIOs x 81, up to 24 channels of PWM , makes it highly suitable for connecting comprehensive external modules and LED lighting control. The M252KG6AE integrates high performance analog front-end circuit blocks, such as 16 channels of 12-bit 880 kSPS ADC , analog comparator, operational amplifier, temperature sensor, low voltage reset ( LVR ) and brown-out detector ( BOD ) to enhance product performance, reduce external components and form factor simultaneously.

NuMicro® M252KG6AE supports a crystal-less USB 2.0 full speed device that can generate precise frequency required by USB protocol without the need of external crystal to reduce the BOM cost and PCB size.

The package types of the M252KG6AE is LQFP128 ( 14 mm x 14 mm ) . Pin-to-pin compatible in same package makes optimizing product features and performance easily.

Target Application:

  • Smart Home / Smart Home Appliance
  • Industrial Control / Industrial Automation
  • Smart City
  • IoT Device
  • Security Alarm System
  • Electronic Payments
  • Communication Modules
  • Portable Wireless Data Collector
  • Smart Door lock
  • Handheld Medical Device
  • ( GPS ) Location Tracker
  • Electronic Shelf Labels ( ESL )

 

Key Features:

Operating Characteristics
  - Voltage range: 1.8 V ~ 5.5 V
  - Temperature range: - 40  ℃ ~ + 105 ℃
   
Core
  - Arm® Cortex®-M23, Armv8-M, 48 MHz
  - 32-bit H / W multiplier / divider
     
Memories
  - 256 KB Flash
  - 32 KB SRAM
  - 4 KB LDROM
  - 1-region eXecute-Only-Memory ( XOM )
  - ISP / ICP / IAP programming
     
Clocks
  - 4 ~ 32 MHz external high speed crystal oscillator ( HXT ) for precise timing operation
  - 32.768 kHz external low speed crystal oscillator ( LXT ) for RTC function and low-power system operation
  - 48 MHz internal high speed RC oscillator ( HIRC ) for system operation ( Factory pre-trimmed to ± 0.25 % and frequency deviation ± 2 % over entire temperature from - 40 ~ 105 ℃ )
  - 4.032 MHz internal high speed RC oscillator ( MIRC ) for system operation
  - 38.4 kHz internal low speed RC oscillator ( LIRC ) for Watchdog Timer and wake-up operation.
     
Power management
  - Integrated with Power-on Reset, Brown-out Reset and Low Voltage Reset
  - Built-in LDO
  - Support RTC with independent VBAT voltage source pin
     
   
Low Power Consumption
  - 138 μA / MHz in operating mode
  - 60 μA / MHz in idle mode
  - 2.5 μA in Power down mode ( RTC on, RAM retention )
  - 1.5 μA in Power down mode ( RTC off, RAM retention )
  - 1.3 μA in Deep Power down mode
     
RTC
  - Supports external power pin VBAT ( Standalone VBAT for RTC power domain )
     
Timers
  - Up to 4 * 32-bit timers
     
PDMA
  - 8 channels
     
PWM
  - 24-channels PWM
  - Supports trigger ADC
  - Supports maximum clock frequency up to 96 MHz
  - Supports independent mode for PWM output / Capture input channel
  - Supports complementary mode for 3 complementary paired PWM output channel
   
Analog
  - 16 channels 12-bit 1 880 kSPS ADC
  - 2 sets of rail-to-rail comparators ( ACMP )
  - 1 set of 12bit 1 MSPS voltage type DAC
     
Communication interfaces
  - 3 sets of UART interface
  - 2 sets of I²C interfaces
  - 1 set of Q SPI interface
  - 1 set of SPI / I²S interface ( Configured as SPI or I²S )
  - 1 set of Smart Card Interface ( ISO-7816-3 )
  - 3 sets of USCI ( Configured as UART , SPI or I²C )
  - 16 / 8-bits EBI ( External Bus Interface ) interface
     
VAI ( Voltage Adjustable Interface )
  - 6 I / O pins to support the 2nd I/O voltage from 1.65 ~ 5.5 V, applied voltage to the VDDIO pin
     
PSIO ( Programmable Serial I / O )
  - PSIO ( Programmable Serial I / O ) is capable of generating specific waveform to emulate arbitrary serial communication protocols to connect with specific peripherals by PSIO hardware engine.
  - 8 PSIO pins
     
USB
  - 1 set of USB 2.0 full speed device with on-chip PHY ( crystal-less design )
     
96-bit Unique ID ( UID )
     
128-bit Unique Customer ID ( UCID )
     
Packages
  - LQFP128 ( 14 mm x 14 mm )