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Features

  • 80MHz Arm Cortex-M33 with TrustZone
  • 512KB dual bank flash supporting BGO
  • 96KB SRAM with 64KB parity and 32KB ECC
  • 8KB data flash
  • 168µA/MHz active current, 1.73µA standby current
  • Fast wake-up <3.5µS (from MOCO)
  • 6 SCI (UART, Simple SPI, Simple I2C), SSI
  • 2 x low-power UARTs with 32kHz support
  • 2 x I2C multi-master interface
  • 3 x SPI interfaces
  • CAN FD
  • Quad SPI with XIP
  • 32-bit and 16-bit timers, 32-bit ultra-low power timers
  • 2 x watchdog timer
  • High-precision Real-Time Clock (RTC)
  • 12-bit ADC
  • Temperature sensor with 1% accuracy
  • 8 x 44 segment LCD drive
  • Advanced security engine with support for: TRNG, Unique ID, AES, ECC, SHA

Description

The Renesas RA4C1 32-bit MCU group features the low-power, Arm® Cortex®-M33 (CM33) core with TrustZone® to deliver an ideal balance of low voltage operation, low power consumption, and high performance. The RA4C1 offers operation down to 1.6V, combined with a low-power standby current of as little as 1.73µA and a multitude of low-power features enabling the user to dynamically optimize power/performance to their application requirements.

The RA4C1 integrates an advanced security engine offering isolation from improper access from the CPU or a debugger, and offers a 128-bit unique ID, secure key management, and acceleration for AES, ECC, and SHA algorithms. This security feature secures data from cyberattacks and complies with the latest legislation.

Many low-power features are included in the RA4C1 MCUs, such as segment LCD display drive, RTC with a high-precision mode, ADC, and timers, as well as integrated communications interfaces such as CAN FD, I2C, SPI, and low-power UARTs. All these built-in features make the RA4C1 MCUs ideal for metering applications such as power, gas, and water meters, as well as many industrial automation, home appliances, smart home, consumer, and building/home automation applications.

The RA4C1 comes in a range of 64-pin or 100-pin LQFP packages and offers support for operating temperatures of -40°C to 105°C. The RA4C1 MCUs are fully supported by the Renesas Flexible Software Package and a comprehensive set of hardware and software development tools.

Parameters

AttributesValue
Main CPUArm Cortex-M33
Program Memory (KB)256, 512
RAM (KB)96
Carrier TypeFull Carton (Tray), Full Tray (Tray)
Supply Voltage (V)1.6 - 3.6
I/O Ports49, 83
DRAM I/FNo
Temp. Range (°C)Ta= -40 to +105, Ta = -40 to +105
Operating Freq (Max) (MHz)80
Ethernet speedNo
EtherCat (ch) (#)0
USB FS (host ch/device ch)( 0 / 0 )
USB HS (host ch/device ch)( 0 / 0 )
USB SS (host ch/device ch)( 0 / 0 )
SCI or UART (ch)6
SPI (ch)3
I2C (#)2
CAN (ch)0
CAN-FD (ch)1
WirelessNo
SDHI (ch)0
High Resolution Output TimerNo
PWM Output (pin#)12
32-Bit Timer (ch)4
16-Bit Timer (ch) (#)4
Standby operable timerYes
Asynchronous General Purpose Timer / Interval Timer (ch)2
16-Bit A/D Converter (ch)0
14-Bit A/D Converter (ch)0
12-Bit A/D Converter (ch)12, 16
24-Bit Sigma-Delta A/D Converter (ch)0
12-Bit D/A Converter (ch)0
8-Bit D/A Converter (ch)0
Capacitive Touch Sensing Unit (ch)0
Image CodecNo
Segment LCD ControllerYes
Security & EncryptionUnique ID, TRNG, AES256, ECC384, SHA512

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
LQFP10 x 10 x 1.7640.5
LQFP14 x 14 x 1.71000.5

Product Comparison

RA4C1RA4L1
Supply Voltage1.6 - 3.61.6 - 3.6
Temp. Range (°C)Ta= -40 to +105, Ta = -40 to +105Ta = -40 to +105, Ta= -40 to +125, Ta = -40 to +125, Tj= -40 to +125
Pkg. TypeLQFPCSP, HWQFN, LFBGA, LQFP
Segment LCD ControllerYesYes
CAN-FD (ch)11
I2C (#)21
SPI (ch)31

Application Block Diagrams

Dual-needle gauge interactive block diagram displays multiple real-time values for fast, intuitive analog monitoring.
Dual-Needle Gauge
Dual-needle gauge displays two real-time values for fast, intuitive analog monitoring.
Interactive block diagram of this flexible metering system features ultra-low power metrology MCUs, UART with optical isolation, and Sub-1 GHz MCU.
Smart 1-Ph E-Meter
Flexible energy metering system with wired and wireless communications, tamper detection, and isolation support.
Interactive block diagram of the industrial electronic valve control features a dual MCU system and RS-485 supporting the SIL2 standard.
Industrial Electronic Valve Control
Industrial electronic valve to offer precise, SIL2-compliant control.

Additional Applications

  • Smart meters: power meters, gas meters, water meters, flow meters
  • Appliances: small appliances, home appliances
  • Smart home and building automation: entry systems, intercoms, thermostats, security panels, alarm sensors, smart locks, voice recognition
  • Office automation: asset management, printer display, QR code readers, fingerprint scanners
  • Healthcare: heart rate monitors, glucose meters, oximeters, BP monitors, imaging equipment
  • Voice AI applications

Complete Your Design

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Part NumberStatusSamplesStockPackageBudgetary Price (USD)Carrier TypeFamily NameSeries NameGroup NameCPU ArchitectureMain CPUSub CPUFloating Point UnitBit LengthProgram Memory (KB)Data Flash (KB)RAM (KB)ECC SRAMLead Count (#)Pitch (mm)Pkg. Dimensions (mm)Number of Supply Voltage(s) (#)Supply Voltage (V)I/O PortsDMAC or DTCDMA (ch)Temperature Sensor (ch) (#)Power-On ResetWatchdog Timer (ch)External Memory Bus (bit)DRAM I/F3D GPUAcceleratorMOQTemp. Range (°C)External Interrupt Pins (#)LVD or PVDOperating Freq (Max) (MHz)Sub-clock (32.768 kHz)On-chip OscillatorEthernet speedEthernet (ch)EtherCat (ch) (#)USB Ports (#)USB FS (host ch/device ch)USB HS (host ch/device ch)USB SS (host ch/device ch)PCI Express (generation and ch)SCI or UART (ch)SPI (ch)QSPI (ch)OSPI (ch)I2C (#)I3C (ch)CAN (ch)CAN-FD (ch)WirelessIrDALIN (#)SDHI (ch)High Resolution Output TimerPWM Output (pin#)32-Bit Timer (ch)16-Bit Timer (ch) (#)8-Bit Timer (ch)Standby operable timerAsynchronous General Purpose Timer / Interval Timer (ch)RTC16-Bit A/D Converter (ch)14-Bit A/D Converter (ch)12-Bit A/D Converter (ch)10-Bit A/D Converter (ch)24-Bit Sigma-Delta A/D Converter (ch)16-Bit D/A Converter (ch)12-Bit D/A Converter (ch)10-Bit D/A Converter (ch) (#)8-Bit D/A Converter (ch)Analog Comparator (ch)OPAMP (ch) (#)PGA (ch)Capacitive Touch Sensing Unit (ch)Graphics LCD ControllerMIPI Interfaces (DSI) (ch)MIPI Interfaces (CSI) (ch)Camera I/F (Parallel)Image Codec2D Drawing EngineSegment LCD ControllerSSI (ch)Security & EncryptionDebug InterfaceMoisture Sensitivity Level (MSL)
R7FA4C1BB3CFM#BA0ActiveN/AOut of StockLFQFP1ku | $2.8Full Carton (Tray)RARA4RA4C1ArmArm Cortex-M33NoSingle32256KB8KB96KBYes64#0.5mm10 x 10 x 1.71#1.6 - 3.649DMAC&DTC81#Yes2NoNoNoNo1280Ta= -40 to +10516#Yes80MHzYesYesNo000( 0 / 0 )( 0 / 0 )( 0 / 0 )No63102#001NoYes1#0No1244#0Yes2Yes00120000000000No00NoNoNoYes0Unique ID, TRNG, AES256, ECC384, SHA512SWD3
R7FA4C1BB3CFM#UA0ActiveN/AOut of StockLFQFPFull Tray (Tray)RARA4RA4C1ArmArm Cortex-M33NoSingle32256KB8KB96KBYes64#0.5mm10 x 10 x 1.71#1.6 - 3.649DMAC&DTC81#Yes2NoNoNoNo160Ta = -40 to +10516#Yes80MHzYesYesNo000( 0 / 0 )( 0 / 0 )( 0 / 0 )No63102#001NoYes1#0No1244#0Yes2Yes00120000000000No00NoNoNoYes0Unique ID, TRNG, AES256, ECC384, SHA512SWD3
R7FA4C1BB3CFP#BA0ActiveN/AOut of StockLFQFP1ku | $3.02Full Carton (Tray)RARA4RA4C1ArmArm Cortex-M33NoSingle32256KB8KB96KBYes100#0.5mm14 x 14 x 1.71#1.6 - 3.683DMAC&DTC81#Yes2NoNoNoNo720Ta= -40 to +10516#Yes80MHzYesYesNo000( 0 / 0 )( 0 / 0 )( 0 / 0 )No63102#001NoYes1#0No1244#0Yes2Yes00160000000000No00NoNoNoYes0Unique ID, TRNG, AES256, ECC384, SHA512SWD3
R7FA4C1BB3CFP#UA0ActiveN/AOut of StockLFQFPFull Tray (Tray)RARA4RA4C1ArmArm Cortex-M33NoSingle32256KB8KB96KBYes100#0.5mm14 x 14 x 1.71#1.6 - 3.683DMAC&DTC81#Yes2NoNoNoNo90Ta = -40 to +10516#Yes80MHzYesYesNo000( 0 / 0 )( 0 / 0 )( 0 / 0 )No63102#001NoYes1#0No1244#0Yes2Yes00160000000000No00NoNoNoYes0Unique ID, TRNG, AES256, ECC384, SHA512SWD3
R7FA4C1BD3CFM#BA0ActiveN/AOut of StockLFQFP1ku | $3.84Full Carton (Tray)RARA4RA4C1ArmArm Cortex-M33NoSingle32512KB8KB96KBYes64#0.5mm10 x 10 x 1.71#1.6 - 3.649DMAC&DTC81#Yes2NoNoNoNo1280Ta = -40 to +10516#Yes80MHzYesYesNo000( 0 / 0 )( 0 / 0 )( 0 / 0 )No63102#001NoYes1#0No1244#0Yes2Yes00120000000000No00NoNoNoYes0Unique ID, TRNG, AES256, ECC384, SHA512SWD3
R7FA4C1BD3CFP#BA0ActiveAvailableIn StockLFQFP1ku | $4.06Full Carton (Tray)RARA4RA4C1ArmArm Cortex-M33NoSingle32512KB8KB96KBYes100#0.5mm14 x 14 x 1.71#1.6 - 3.683DMAC&DTC81#Yes2NoNoNoNo720Ta= -40 to +10516#Yes80MHzYesYesNo000( 0 / 0 )( 0 / 0 )( 0 / 0 )No63102#001NoYes1#0No1244#0Yes2Yes00160000000000No00NoNoNoYes0Unique ID, TRNG, AES256, ECC384, SHA512SWD3
R7FA4C1BD3CFP#UA0ActiveN/AIn StockLFQFPFull Tray (Tray)RARA4RA4C1ArmArm Cortex-M33NoSingle32512KB8KB96KBYes100#0.5mm14 x 14 x 1.71#1.6 - 3.683DMAC&DTC81#Yes2NoNoNoNo90Ta= -40 to +10516#Yes80MHzYesYesNo000( 0 / 0 )( 0 / 0 )( 0 / 0 )No63102#001NoYes1#0No1244#0Yes2Yes00160000000000No00NoNoNoYes0Unique ID, TRNG, AES256, ECC384, SHA512SWD3
R7FA4C1BD3CFM#UA0NRNDN/AOut of StockLFQFPFull Tray (Tray)RARA4RA4C1ArmArm Cortex-M33NoSingle32512KB8KB96KBYes64#0.5mm10 x 10 x 1.71#1.6 - 3.649DMAC&DTC81#Yes2NoNoNoNo160Ta = -40 to +10516#Yes80MHzYesYesNo000( 0 / 0 )( 0 / 0 )( 0 / 0 )No63102#001NoYes1#0No1244#0Yes2Yes00120000000000No00NoNoNoYes0Unique ID, TRNG, AES256, ECC384, SHA512SWD3

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Renesas Boards & Kits

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Evaluation

RA Family Microcontroller Board

This solution provides a general-purpose evaluation board featuring Renesas RA Family microcontrollers. It is available as a standalone evaluation board or as part of functional kits supporting applications such as CAN, touch key interfaces, and brushless motor control.
HOKUTO DENSHI