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RX63N, RX631

Enhanced security, image capture, and other functions from the RX62N, RX621 lineups


RX631/RX63N Group microcontrollers come in a comprehensive memory vs. package lineup to suit your system scale. In addition to standard functions such as 12-bit A/D converter, motor control timers, SCI, RSPI, I2C, CAN, and safety features, connectivity functions such as Ethernet and USB host have been enhanced. The lineup also includes products possessing specialized functions, such as sensing/image display using a CMOS camera, or security (hardware AES encryption). Products that support high-temperature (105°C) operation are also available.



Product Brochures

RX600/RX700 Brochure

Key Features:

  • 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 100MHz
Power supply voltage 2.7 to 3.6V
Floating-point processing unit Single-precision floating-point processing unit
(Supports add/subtract/compare/multiply/divide and other instructions)
Program Flash Max. 2MB
Data Flash Max. 32KB
SRAM Max. 256KB
On-chip peripheral functions
  • External bus: 177/176-pin(32bit@50MHz), 145/144-pin(16bit@50MHz), Under 100-pin PKG(16bit@25MHz)
  • DMAC: 4 channels
  • Direct memory access controller designed exclusively (EXDMAC) x 2 channels:
  • Over 100-pin PKG Only
  • Data transfer controller (DTC)
  • 16-bit multifunction timer pulse unit: 177/176/145/144-pin: 12 channels; Under 100-pin: 6 channels
  • Multifunction timer pulse unit 2: 6 channels
  • Port output enable 2
  • Programmable pulse generator: Max. 32-bit output
  • 8-bit timer: 4 channels
  • Compare match timer: 4 channels
  • Real-time clock (RTC): Except 48-pin PKG
  • Watchdog timer
  • Independent watchdog timer
  • Serial communication interface (SCIc): 177/176/145/144-pin: 12 channels;
  • 100-pin: 8 channels; 64-pin: 5 channels; 48-pin:4 channels
  • Serial communication interface (SCId)
  • I2C bus interface: 177/176/145/144-pin:4 channels;100-pin:2 channels;
  • 64/48-pin:1 channel
  • Serial peripheral interface (RSPI): 177/176/145/144-pin:3 channels;
  • Under 100-pin:2 channels
  • USB 2.0 full-speed (Host/function/OTG): 177/176-pin: 2 channels;
  • up to 145-pin: 1 channels
  • Ethernet controller*1
  • DMA controller for Ethernet controller (EDMAC)*1
  • CAN*2 : Max. 3 channels
  • IEBus x 1 ch(IEB)
  • 12-bit A/D converter: 177/176/145/144-pin: 21 channels; 100-pin: 14 channels;
  • 64-pin: 12 channels;48-pin: 8 channels
  • 10-bit A/D converter: Over 100-pin;8 channels
  • 10-bit D/A converter: 177/176/145/144-pin: 2 channels; 100/64-pin: 1channel
  • Temperature sensor
  • CRC calculator
  • Power-on reset circuit (POR)
  • Voltage detection circuit (LVD)
  • Data Encryption Unit (DEU)*3
    AES encryption
  • Parallel data capture unit (PDC) *4
On-chip debugging function Yes (with trace function)
Low power consumption modes 4 modes
  • Sleep mode
  • All-module clock stop mode
  • Software standby mode
  • Deep software standby mode
Packages PLQP0048KB-A (48-pin LFQFP, 7 x 7mm 0.5mm pitch)
PLQP0064KB-A (64-pin LFQFP, 10 x 10mm 0.5mm pitch)
PLQP0100KB-A (100-pin LFQFP, 14 x 14mm 0.5mm pitch)
PLQP0144KA-A (144-pin LFQFP, 20 x 20mm 0.5mm pitch)
PTLG0064JA-A (64-pin TFLGA、6 x 6mm 0.65mm pitch)
PTLG0145KA-A (145-pin TFLGA, 7 x 7mm 0.5mm pitch)
PLQP0176KB-A (176-pin LFQFP, 24 x 24mm 0.5mm pitch)
PLBG0176GA-A (176-pin LFBGA, 13 x 13mm 0.8mm pitch)
PTLG0177KA-A (177-pin TFLGA, 8 x 8mm 0.5mm pitch)

*1 RX63N Group (Over 100-pin PKG) only.
*2 part name differs between with CAN/without CAN versions.
*3 part name differs between with DEU/without DEU versions.
*4 Only RX631 products with up to 512 KB flash and 144 pins or more


Pin Count / Memory Size Lineup:

RX63N, RX631-Pin Count/Memory Size


Block Diagram:

RX63N, RX631 Block Diagram

Below you will find information to support the development of your application.
You can find an explanation of orderable part numbers here.

Resources for Software and Hardware

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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.
Video Watch videos related to this product.


Software Design Support

Title Description
CS+ An integrated development environment that can be used for coding, assembling/compiling, and simulation. (Also included with Renesas Starter Kits.)
e2 studio Renesas eclipse embedded studio, known as e² studio, is a complete development and debug environment based on the popular Eclipse CDT project.
E1 A standard Renesas on-chip debugging emulator that enables users to carry out ample debugging for real development at low cost. (Also included with starter kits.)


Hardware Design Support

Title Description

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 RX63N oscillation evaluation result. Click here for RX631 oscillation evaluation result.

Murata Manufacturing: For IC Manufacturer, select Renesas Electronics, and enter R5F563N or R5F5631 into the IC Part Number search box.


For subclock resonators :

KYOCERA: Click here for RX63N oscillation evaluation result. Click here for RX631 oscillation evaluation result.

You can filter the sample codes and application notes that are displayed using the below filters.

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