Smart Home Audio(325)

M0A23 Series

NuMicro® M0A21, M0A23 Series MCU M0A21OC1AC M0A23OC1AC M0A23OC1ACU M0A21EC1AC M0A23EC1AC M0A23EC1ACU

The NuMicro® M0A23 series is a 32-bit microcontroller based on Arm® Cortex®-M0 core. It provides compact package with highly flexible digital pin function assignment, rich analog peripherals, -40 ℃ to 125 ℃ operating temperature, 2.4V ~ 5.5V operating voltage, CAN 2.0B and LIN interface for robust communication. The NuMicro® M0A23 series targets robust and high operating temperature applications, such as 24 GHz mmWave radar, Battery Management System (BMS), car lighting, electric window lifter, and power seat.

The NuMicro® M0A23 series provide SSOP20 and TSSOP28 package with rich analog and digital functions, which are especially suitable for small form factor applications. SSOP20 provides up to 18 IO pins and TSSOP28 provides up to 26 IO pins. Each IO pin of the M0A23 series can be arbitrarily assigned to digital peripherals, such as UART, SPI, and PWM. The M0A23 series provides rich analog functions including 17-ch 12-bit 500 KSPS ADC, 1 set of 5-bit DAC and 2 sets of ACMP in both SSOP20 and TSSOP28 package. Moreover, it provides low voltage reset (LVR) and brown-out detector (BOD) to ensure the system safety.

The NuMicro® M0A23 series runs up to 48 MHz and supports hardware divider. It provides 32 Kbytes Flash memory, 4 Kbytes SRAM and 2 Kbytes LDROM for ISP (In-System Programming) feature for easily firmware update. It is equipped with plenty of peripherals including up to four 32-bit timers, 6-ch 16-bit PWM generators, 1 set of CAN 2.0B controller, 2 sets of LIN functions, 5-ch PDMA, 2 sets of UART with One-Wire mode, IrDA and RS485 functions. Besides, the M0A23 series provides two sets of Universal Serial Control Interfaces (USCI) that can be configured as UART, SPI or I²C.

The package types of the M0A23 series are included SSOP20 (5.3x7.2x1.75 mm) and TSSOP28 (4.4x9.7x1.0 mm).

• M0A23 User Manual • M0A23 Technical Reference Manual (TRM)
• NuMaker-M0A23OC Schematic, PCB, Gerber File & BOM • M0A21/M0A23 Series Board Support Package (BSP)

The M0A23 is targeted at applications such as:

  • 24GHz mmWave radar
  • BMS (Battery Management System)
  • Car lighting
  • Electric window lifter
  • Power seat

Key Features:

  - Arm® Cortex®-M0 core running up to 48 MHz
  - Single-cycle 32-bit hardware divider
  - 32 KB Flash for program code
  - Up to 4 KB SRAM
  - Up to 2 KB SRAM
  - Supports In-System-Program (ISP) and In-Application-Program (IAP) application code update
Peripheral DMA (PDMA)
  - Supports up to 5 independent configurable channels for automatic data transfer between memories and peripherals
CRC calculation unit
  - Supports CRC-CCITT, CRC-8, CRC-16 and CRC-32 polynomials
  - Internal 48 MHz RC oscillator (frequency drift <± 2 % @ - 40 ℃ ~ 105°C, <± 3 % @- 40 ℃ ~ 125 °C)
  - Internal 38.4 kHz RC with calibration (frequency drift <± 10 % @ - 40 ℃ ~105 ℃, < ± 15 % @ - 40 ℃ ~ 125 ℃)
  - 4 to 24 MHz crystal oscillator
  - 32.768 kHz crystal oscillator
  - 4 sets of 32-bit timers
  - 6-ch 48 MHz 16-bit PWM
  - One 24-bit SysTick Timer
  - Watchdog Timer
  - Window Watchdog Timer
  - 17-ch 12-bit 500 kSPS ADCs
  - Two analog comparators (ACMP)
  - One 5-bit DAC
  - One built-in temperature sensor
Communication interfaces
  - 2 sets of UART interfaces with One-Wire mode, IrDA, RS-485 and LIN function
  - 2 sets of USCI interfaces to be configured as UART, SPI or I²C
  - 1 set of CAN interface, supporting CAN protocol version 2.0 part A and B
Up to 26 GPIOs in SSOP28
Operating Characteristics
    Voltage range: 2.4 V to 5.5 V
    Temperature range: - 40 ℃ to 125 ℃
96-bit Unique ID (UID)
  - Can be used as a security key
128-bit Unique Customer ID (UCID)
  - SSOP20
  - TSSOP28
Evaluation Board
EVB Part No. Supported Devices
NuMaker-M0A23EC M0A23EC1ACM0A23OC1AC
NuMaker-M0A23OC M0A23OC1AC
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