FM3 CY9Bx10R-Series High Performance Arm® Cortex®-M3 Microcontroller (MCU) Family | Cypress Semiconductor

FM3 CY9Bx10R-Series High Performance Arm® Cortex®-M3 Microcontroller (MCU) Family

The Cypress FM3 family of 32-bit general-purpose MCUs is based on the Arm® Cortex® -M3 CPU, which provides a scalable platform for many consumer and industrial applications. Popular applications range from motor control, factory automation, white goods and power tools to medical devices, major home appliances, digital consumer devices and office automation equipment.

The FM3 CY9Bx10R-Series is a high performance group that operates with a voltage range of 2.7V to 5.5V. The FM3 CY9Bx10R-Series delivers high-performance with a 144 MHz CPU clock speed, 512 KB of flash with 16 KB of work flash and features a pre-fetch buffer for zero-wait-state operation at 144 MHz.

CY9Bx10R-Series Features

High Performance MCU Subsystem

  • 478 CoreMark®, 144-MHz Arm® Cortex®​-M3 CPU
  • 2.7V to 5.5V operating voltage
  • Up to 512KB flash, 64KB SRAM with a 16KB work flash accelerator
  • Error-Correcting Code (ECC) support, hardware WDT, low-voltage detect and clock supervisor blocks for safety-critical applications

Digital Subsystem

  • 3x Multi-Function Timers (MFT)
  • 9x Programmable Pulse Generators (PPG)
  • 8x Base Timers
  • 3x Quadrature Position/Revolution Counters (QPRC)
  • 1x Dual Timer, CRC and, Watch Counter
  • 8x Multi-Function Serial (MFS) interfaces configurable as SPI, UART, I2C
  • 1x USB, 2x CAN and External Bus Interfaces

Analog Subsystem

  • 3x 12-bit, 2-Msps ADCs with a 16-channel multiplexer input


  • LQFP100, LQFP120, BGA112

CY9Bx10R-Series Block Diagram

CY9Bx10R-Series Block Diagram

  1. Watchdog Timer
  2. Cyclical Redundancy Check
  3. Controller Area Network
  4. Ethernet Communications with IEEE 1588 Precision Time Protocol (PTP) Standard
  5. Memory Protection Unit
  6. Direct Memory Access

Function Differences between each High Performance Line by part

Series CY9BD10T CY9B610T CY9B510T CY9B410T CY9B310T CY9B210T CY9B110T CY9B510R CY9B410R CY9B310R CY9B110R

1024/128 1024/128 1024/128 1024/128 1024/128 1024/128 1024/128 512/64 512/64 512/64 512/64
GPIO 154 154 154 154 154 154 154 103 103 103 103
Base Timer 16 16 16 16 16 16 16 8 8 8 8
RTC - - - - - - - Y Y Y Y
USB 2 2 2 - 2 2 - 1 - 1 -
CAN 2 - 2 2 - - - 2 2 - -
Ether-MAC 2 2 - - - 1 - 1 - 1 -
ADC 32 32 32 32 32 32 32 16 16 16 16
FM3 CY9Bx10R-Series Datasheets
  • The FM3 CY9Bx10R-Series datasheets are intended to provide quick reference for this FM3 series.
FM3 CY9Bx10R-Series Flash Specifications
  • Flash Programming Manual explains the functions, operations and serial programming of the flash memory for FM3 CY9Bx10R-Series devices. This manual is intended for engineers engaged in the actual development of products using the FM3 devices.
FM3 CY9Bx10R-Series Technical Reference Manual
  • The FM3 Technical Reference Manual provides detailed information on the device features and how they work. It is intended for advance user's who want to understand what's going on under the hood.
Application Notes

Peripheral Driver Library

FM MCU Peripheral Driver Library (PDL)

The FM MCU Peripheral Driver Library (PDL) simplifies software development for the FM0+, FM3, and FM4 MCU families. The PDL reduces the need to understand register usage and bit structures, thus easing software development for the extensive set of peripherals in the FM families. You configure the library for the particular device, and then use API calls to initialize and use a peripheral. Using the PDL makes it easier to port code from one family to the other, because the same code supports all FM families.


Support Tools

Vendor Link Comments
IAR Systems!?architecture=ARM IAR Embedded Workbench for Arm 7.50.2 or later
Arm Keil Keil Embedded Development Tools for Arm 5.17 or later
GCC Arm Embedded GCC Arm Embedded 4.9-2015-q1-update or later
iSystem iSYSTEM winIDEA 9.12 or later



Click on the link below to download the tool

Product Description
Pin and Code Wizard Tool that helps set the IO ports for Cypress's 32-bit Arm Cortex FM MCUs
Serial Port Viewer Tool Tool that is used to monitor all available com ports and provides a terminal emulator
CMSIS-DAP USB Drivers CMSIS-DAP is the interface firmware for a Debug Unit that connects the Debug Port to USB. Debuggers, which execute on a host computer, connect via USB to the Debug Unit and to the Device that runs the application software
FLASH Programmer Tool that converts RS232C data to readable data on your PC
USB Wizard Tools that supports editing USB descriptors and templates

FM3 MCU Starter Kits

These kits will help you get started with FM3 MCU development.

Development Kits

FM3-100PMC-MB9BF516N Arm® Cortex®-M3 MCU Pioneer Kit

Arm® Cortex®-M3 MCU Pioneer Kit

The Sample Programs ("Programs") are offered for use in developing systems for Cypress microcontrollers.

The Programs will be useful in the following situations:

  • I need a simple sample program, as I am going to develop software. The sequence of resource access, among others, can be confirmed using these Programs.
  • I would like to examine, before development, whether each resource will operate as expected.
    The Programs support several specifications, even for the operation of one resource.
  • If resources do not operate properly on my system, I would like software for which confirmation of operation has been completed. Cypress has confirmed the actual operation of the Programs on each of its microcontrollers, so you will be able to compare your program with the Program.

For the FM portfolios, code examples are provided with the Peripheral Driver Library (PDL). Download and install the PDL, and look in the examples folder.