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Product attributes Property Value
Manufacturer Cypress Semiconductor Corp
Product Series FM3 MB9AF344NB
Packaging Bulk |
Core Processor ARM® Cortex®-M3
Core Size 32-Bit Single-Core
Speed 40MHz
Connectivity CSIO, EBI/EMI, I2C, UART/USART, USB
Peripherals DMA, LVD, POR, PWM, WDT
Number of I/O 83
Program Memory Size 288KB (288K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 32K x 8
Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V
Data Converters A/D 24x12b SAR
Oscillator Type External, Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 112-PFBGA (10x10)
Package / Case 112-LFBGA
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Cypress MB9AF344NBBGL-GE1 is a high-performance 32-bit microcontroller built on the ARM Cortex-M3 architecture. It operates at up to 40MHz with a wide supply range of 1.65V to 3.6V, making it suitable for power-sensitive applications. The device provides 288KB of flash memory and 32KB of RAM, along with essential peripherals such as DMA, PWM, LVD, POR, and WDT. Housed in a compact 112-LFBGA package, it is designed for reliable operation across -40°C to 85°C.

  • High Memory Capacity: 288KB flash and 32KB RAM support complex firmware and data buffering without external memory.
  • Efficient Data Transfer: Integrated DMA reduces CPU load, improving real-time response in data-intensive applications.
  • Wide Voltage Flexibility: 1.65V-3.6V operation enables use in both 1.8V and 3.3V systems.
  • Robust Safety Features: LVD, POR, and WDT enhance system reliability in unpredictable environments.

Industrial Motor Control

The 40MHz Cortex-M3 core with PWM and DMA enables precise, low-latency control of brushless DC motors in industrial drives, leveraging the 288KB flash for complex control algorithms.

Portable Medical Devices

With a 1.65V minimum supply and low-power features like LVD and WDT, this MCU is ideal for battery-powered diagnostic tools requiring reliable operation and long battery life.

Smart Building Automation

The 112-LFBGA package and robust peripheral set support advanced HVAC controllers and lighting systems, where multiple PWM channels and DMA reduce CPU overhead.

Consumer Robotics

Real-time sensor fusion and actuator control are handled efficiently by the Cortex-M3 at 40MHz, with 32KB RAM providing ample buffer for sensor data streams.

Automotive Body Electronics

Operating from -40°C to 85°C, this MCU suits non-critical automotive modules like window lifts or mirror controls, where LVD and POR ensure stable startup and operation.

IoT Edge Gateways

The combination of DMA and multiple communication interfaces (via GPIO) allows efficient data aggregation from sensors, while the low-voltage operation supports energy-harvesting designs.

Q: What is the operating voltage range of the MB9AF344NBBGL-GE1?
A: The supply voltage range is 1.65V to 3.6V.
Q: What core processor does this MCU use?
A: It uses an ARM Cortex-M3 core running at up to 40MHz.
Q: How much flash memory and RAM does it have?
A: It has 288KB of program flash and 32KB of RAM.
Q: What package is available?
A: It comes in a 112-LFBGA package.
Q: What are the key integrated features?
A: It includes DMA, LVD, POR, PWM, and WDT.
Base Product Number : MB9AF344NBBGL
112-LFBGA 288KB Flash 32-bit MCU 32KB RAM 40MHz ARM Cortex-M3 DMA Industrial IoT LVD Medical POR PWM WDT
Q: What is the operating voltage range of the MB9AF344NBBGL-GE1?
A: The supply voltage range is 1.65V to 3.6V.
Q: What core processor does this MCU use?
A: It uses an ARM Cortex-M3 core running at up to 40MHz.
Q: How much flash memory and RAM does it have?
A: It has 288KB of program flash and 32KB of RAM.
Q: What package is available?
A: It comes in a 112-LFBGA package.
Q: What are the key integrated features?
A: It includes DMA, LVD, POR, PWM, and WDT.