High-performance microcontroller achieving 4.55CoreMark/MHz (546CoreMark) with

RXv2 core employed


The RX64M Group 32-bit microcontrollers are capable of operating at up to 120 MHz, providing a leading edge performance of 4.55 CoreMark/MHz. The RX64M employs the powerfully evolved RXv2 core, which is backward compatible with the RX core employed in existing RX products. The RXv2 core enables 1.45 times the CoreMark/MHz performance and a 40% reduction in power consumption compared to existing RX products, and even higher code efficiency, allowing the realization of high-speed, low consumption systems.


The RX64M Group is equipped with large-capacity memory of up to 4 MB of ROM for code and 552 KB work RAM. Built-in functions include the well-received event link controller from the RX200 and abundant functions from the RX63N, as well as SD card and audio interfaces, which are highly demanded by the market, and IEEE 1588 industrial Ethernet functions have been added. Thus, the RX64M Group is suitable for industrial equipment, network devices, and other applications requiring advanced real-time performance and large-capacity memory. We are also preparing a variety of middleware to support short system development times at low cost.



CPU core RX CPU v2 core Maximum operating frequency:120MHz
・General registers: 32-bit x 16
・Multiplier: 32-bit multiplier
・Divider: Yes
・Multiply-accumulator: Yes (two types: memory-to-memory operations and register-to-register operations)
Maximum operating frequency 120MHz
Power supply voltage 2.7 to 3.6 V (3.0 to 3.6 V when using USB)
Floating-point operation unit Single-precision floating-point operation unit
(supports addition/subtraction/comparison/multiplication/division/other instructions)
Program Flash Max. 4 MB
Data Flash 64KB
SRAM RAM Total 552KB
- Non-ECC : 512KB
- with ECC : 32KB
- Standby RAM : 8KB
On-chip peripheral functions
  • External bus: 177/176-pin (32/16/8-bit), 145/144/100-pin (16/8-bit)
  • DMAC: 8 channels
  • DMAC for external bus transfer (EXDMAC): 2 channels
  • Data transfer controller
  • 16-bit timer pulse unit: 6 channels
  • Multifunction timer pulse unit 3: 9 channels
  • General PWM timer: 4 channels
  • Port output enable 3
  • Programmable pulse generator: Max. 32-bit output
  • 8-bit timer: 4 channels
  • Compare match timer: 4 channels
  • Two comparison match timer W:2 channels
  • Real-time clock
  • Watchdog timer
  • Independent watchdog timer
  • Ethernet controller: 177/176-pin: 2 ch; other: 1 ch
  • PTP controller for Ethernet
  • DMA controller for Ethernet controller (EDMAC)
  • USB 2.0 full-speed (host/function/OTG):177,176-pin:2channels; 145,144,100-pin:1channel;
  • Serial communications interface (SCIg): 177, 176, 145, 144-pin: 8 channels;
  • 100-pin:6 channels
  • Serial communications interface with FIFO (SCIF): 177, 176, 145, 144-pin: 4 channels; 100-pin: 2 channels
  • Serial communications interface (SCIh)
  • I2C bus interface: 2 channels
  • Serial peripheral interface (RSPI)
  • CAN: 177, 176, 145, 144-pin: 3 channels; 100-pin: 2 channels
  • Quad serial peripheral interface (QSPI)
  • Serial sound interface: 2 channels
  • Sampling rate comparator
  • SD host interface
  • MMC host interface
  • Parallel data capture unit: 177, 176, 145, 144-pin only
  • 12-bit A/D converter: 177, 176, 145, 144-pin: 29 channels; 100-pin: 22 channels
  • 12-bit D/A converter: 177, 176, 145, 144-pin: 2 channels; 100-pin: 1 channel
  • Temperature sensor
  • CRC calculator
  • Power-on reset circuit
  • Voltage detection circuit (LVD)
  • Real-time clock (RTC): Vbatt battery backup possible
  • Data operation circuit
  • Clock frequency accuracy measurement circuit
  • Encryption functions (AES/DES/SHA/RNG)
Debugging functions Yes (with trace function)
Low power consumption modes Four modes
  • Sleep mode
  • All-module clock stop mode
  • Software standby mode
  • Deep software standby mode
Packages PLQP0100KB-A (100-pin LFQFP, 14 x 14 mm, 0.5-mm pitch)
PTLG0100JA-A (100-pin TFLGA, 7 x 7 mm, 0.65-mm pitch)
PLQP0144KA-A (144-pin LFQFP, 20 x 20 mm, 0.5-mm pitch)
PTLG0145kA-A (145-pin TFLGA, 7 x 7 mm, 0.5-mm pitch)
PLQP0176KB-A (176-pin LFQFP, 24 x 24 mm, 0.5-mm pitch)
PLBG0176GA-A (176-pin LFBGA, 13 x 13 mm, 0.8-mm pitch)
PTLG0177KA-A (177-pin TFLGA, 8 x 8 mm, 0.5-mm pitch)

Pin Count / Memory Size Lineup:

Program Flash



Block Diagram:

You can find an explanation of orderable part numbers here.

Resources for Software and Hardware

Title Description
My Renesas Create a My Renesas account to use our tool download services, receive e-newsletter/update notifications, and take advantage of our other services.
e-learning Information for studying and learning about microcontrollers and microprocessors.
FAQ Frequently asked questions and useful hints for development.
Forum A forum and community site to share technical information, questions and opinions with others who use Renesas products.


Software Design Support

Title Description
e² studio This integrated development environment (IDE) is based on the popular combination of the open-source Eclipse IDE and its CDT plug-in that enables C/C++ language development.
CS+ This integrated development environment (IDE) can be used for coding, assembly, compiling, and simulation. CS+ is also included with starter kits.
E2 emulator Lite This entry-level on-chip debugging emulator provides functionality equivalent to that of the E1 emulator at a low price.
E2 emulator This on-chip debugging emulator has advanced features that improve the efficiency of development. In addition to the basic functions from debugging to flash programming, this emulator supports hot plug-in and external triggers as standard items. This emulator also helps to reduce development time by downloading at high speeds (compared to the E1 emulator) and the ability to work in combination with various solutions such as the tuning of current drawn by systems under development.
E20 emulator This on-chip debugging emulator has enhanced debugging facilities such as large-capacity tracing and real-time RAM monitoring when used in combination with RX600 and RX700 MCUs (this emulator provides debugging functionality equivalent to that of the E1 emulator for other MCUs).
E1 emulator This on-chip debugging emulator is a standard model which provides basic debugging functions (production is to be discontinued at the end of December 2019).


Hardware Design Support

Title Description
IBIS/BSDL IBIS standard simulation data is required for high-speed board design and can be used to run simulations to examine and troubleshoot issues such as waveform reflection, ringing, and so on, before producing the actual board.
BSDL is a data input format supported by most IEEE 1149.1 (JTAG)-compliant tools. The automatic test pattern generation (ATPG) and automatic test equipment functions of these tools facilitate testing.
Resonator Information Please search for your resonator on its manufacturer's site linked below. If you require optimal oscillation circuit constants for your particular system, please ask the manufacturer of the oscillator.

For main clock resonators : 
KYOCERA: Click here for RX64M oscillation evaluation result.
Murata Manufacturing: For IC Manufacturer, select Renesas Electronics, and enter R5F564M into the IC Part Number search box.

For subclock resonators :
KYOCERA: Click here for RX64M oscillation evaluation result.
You can filter the sample codes and application notes that are displayed using the below filters.

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