R8C/3x
Overview
The R8C/3x Series offers even higher performance and ease of use than the R8C/2x Series. These products have a maximum operating frequency of 20 MHz and support a wide operating voltage range from 1.8 to 5.5 V. Standard on-chip peripherals include 8-bit Multifunction Timers, 16-bit Timers, UART/Clock Synchronous Serial Interface, , , , Watchdog Timer, etc.
Key Applications
Electronic household appliances, office equipment, audio equipment, consumer products, peripherals (USB applicable), audio components, cameras, televisions, communication devices, mobile devices, industrial equipment, automotive, etc.


Product Lineup:
| Documents | Tools | Operating Voltage (V) |
Max. Frequency (MHz) |
Program Memory (KB) |
Data Flash (KB) |
RAM (KB) |
Pins |
|---|---|---|---|---|---|---|---|
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R8C/38A I2C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 80-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 32 - 128 | 4 | 2.5 - 10 | 80,81 | |
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R8C/32C I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 20-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 4 - 16 | 4 | .5 - 1.5 | 20 | |
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R8C/33C I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 32-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 4 - 32 | 4 | .5 - 2.5 | 32 | |
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R8C/34C I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 48-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 16 - 32 | 4 | 1.5 - 2.5 | 48 | |
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R8C/35C I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 52-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 16 - 128 | 4 | 1.5 - 10 | 52 | |
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R8C/36C I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 64-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 16 - 128 | 4 | 1.5 - 10 | 64 | |
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R8C/38C I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 80-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 32 - 128 | 4 | 2.5 - 10 | 80 | |
|
R8C/3GC I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 24-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 4 - 32 | 4 | .5 - 2.5 | 24 | |
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R8C/3JC I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 36-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 8 - 32 | 4 | 1 - 2.5 | 36 | |
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R8C/32D 10-bit A/D Converter, Comparator, Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Maximum operating frequency is 20 MHz. 20-pin package is available. |
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Development Environment |
1.8 - 5.5 | 20 | 4 - 16 | 0 | 1 - 1 | 20 | |
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R8C/33D 10-bit A/D Converter, Comparator, Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Maximum operating frequency is 20 MHz. 32-pin package is available. |
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Development Environment |
1.8 - 5.5 | 20 | 4 - 32 | 0 | 1 - 1 | 32 | |
|
R8C/35D 10-bit A/D Converter, Comparator, Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Maximum operating frequency is 20 MHz. 52-pin package is available. |
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Development Environment |
1.8 - 5.5 | 20 | 16 - 32 | 0 | 1 - 1 | 52 | |
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R8C/3GD 10-bit A/D Converter, Comparator, Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Maximum operating frequency is 20 MHz. 24-pin package is available. |
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Development Environment |
1.8 - 5.5 | 20 | 4 - 32 | 0 | 1 - 1 | 24 | |
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R8C/32M Highly functional version equipped with high-precision high-speed on-chip oscillator. I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 20-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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|
Development Environment |
1.8 - 5.5 | 20 | 4 - 16 | 4 | .5 - 1.5 | 20 | |
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R8C/33M Highly functional version equipped with high-precision high-speed on-chip oscillator. I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 32-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 4 - 32 | 4 | .5 - 2.5 | 32 | |
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R8C/34M Highly functional version equipped with high-precision high-speed on-chip oscillator. I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 48-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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|
Development Environment |
1.8 - 5.5 | 20 | 16 - 32 | 4 | 1.5 - 2.5 | 48 | |
|
R8C/35M Highly functional version equipped with high-precision high-speed on-chip oscillator. I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 52-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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|
Development Environment |
1.8 - 5.5 | 20 | 16 - 128 | 4 | 1.5 - 10 | 52 | |
|
R8C/36M Highly functional version equipped with high-precision high-speed on-chip oscillator. I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 64-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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|
Development Environment |
1.8 - 5.5 | 20 | 16 - 128 | 4 | 1.5 - 10 | 64 | |
|
R8C/38M Highly functional version equipped with high-precision high-speed on-chip oscillator. I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 80-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 32 - 128 | 4 | 2.5 - 10 | 80 | |
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R8C/3GM |
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Development Environment |
1.8 - 5.5 | 20 | 8 - 32 | 4 | 1 - 2.5 | 24 | |
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R8C/3JM |
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Development Environment |
1.8 - 5.5 | 20 | 8 - 32 | 4 | 1 - 2.5 | 36 | |
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R8C/33T Sensor Control Unit (SCU) for capacitive touch sensors added to standard peripherals. System Control as well as electrostatic capacitive touch detection of a maximum of 18 channels of input. On-chip SCU is also a response to demands for more compact system size, reduced power consumption, and improved noise tolerance. Maximum operating frequency is 20 MHz. 32-pin package is available. |
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Development Environment |
1.8 - 5.5 | 20 | 16 - 32 | 4 | 1.5 - 2.5 | 32 | |
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R8C/3JT Sensor Control Unit (SCU) for capacitive touch sensors added to standard peripherals. System Control as well as electrostatic capacitive touch detection of a maximum of 22 channels of input. On-chip SCU is also a response to demands for more compact system size, reduced power consumption, and improved noise tolerance. Maximum operating frequency is 20 MHz. 40-pin package is available. |
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Development Environment |
1.8 - 5.5 | 20 | 16 - 32 | 4 | 1.5 - 2.5 | 40 | |
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R8C/3NT Sensor Control Unit (SCU) for capacitive touch sensors added to standard peripherals. System Control as well as electrostatic capacitive touch detection of a maximum of 5 channels of input. On-chip SCU is also a response to demands for more compact system size, reduced power consumption, and improved noise tolerance. Maximum operating frequency is 20 MHz. 48-pin package is available. |
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Development Environment |
1.8 - 5.5 | 20 | 48 - 128 | 4 | 4 - 10 | 48 | |
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R8C/3MK USB 2.0 Module (Host/Peripheral), I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, Comparator, DTC (Data Transfer Controller), PLL Frequency Synthesizer, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 40-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 64 - 128 | 4 | 8 - 10 | 40 | |
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R8C/34K USB 2.0 Module (Host/Peripheral), I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, Comparator, DTC (Data Transfer Controller), PLL Frequency Synthesizer, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 48-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 64 - 128 | 4 | 8 - 10 | 48 | |
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R8C/3MU USB 2.0 Module (Peripheral), I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, Comparator, DTC (Data Transfer Controller), PLL Frequency Synthesizer, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 40-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 32 - 64 | 4 | 4 - 8 | 40 | |
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R8C/34U USB 2.0 Module (Peripheral), I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, 10-bit A/D Converter, Comparator, DTC (Data Transfer Controller), PLL Frequency Synthesizer, and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 48-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 5.5 | 20 | 32 - 64 | 4 | 4 - 8 | 48 | |
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R8C/3MQ 2.4 GHz RF Transceiver Circuit compliant with IEEE802.15.4 standard, I<sup>2</sup>C-bus Interface (IIC)/Synchronous Serial Communication Unit, DTC (Data Transfer Controller), Sub Clock Generation Circuit, and Oscillation Stop Detection Function are added to standard peripherals. Maximum operating frequency is 16 MHz. 40-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded. |
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Development Environment |
1.8 - 3.6 | 16 | 32 - 112 | 4 | 2.5 - 7.5 | 40 | |
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R8C/32G, R8C/32H Synchronous Serial Communication Unit, 10-bit A/D Converter, Comparator, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 20-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/32G). |
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Development Environment |
2.7 - 5.5 | 20 | 16 - 32 | 0,4 | 1.5 - 2.5 | 20 | |
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R8C/33G, R8C/33H Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 32-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/33G). |
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Development Environment |
2.7 - 5.5 | 20 | 16 - 32 | 0,4 | 1.5 - 2.5 | 32 | |
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R8C/34P, R8C/34R Synchronous Serial Communication Unit, 10-bit A/D Converter, 8-bit D/A Converter, Comparator, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module. Maximum operating frequency is 20 MHz. 48-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/34P). |
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Development Environment |
2.7 - 5.5 | 20 | 16 - 32 | 0,4 | 1.5 - 2.5 | 48 | |
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R8C/34W, R8C/34X, R8C/34Y, R8C/34Z Synchronous Serial Communication Unit, 10-bit A/D Converter, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module and CAN module compliant with ISO11898-1 (R8C/34W, R8C/34X). Maximum operating frequency is 20 MHz. 48-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/34W, R8C/34Y). |
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Development Environment |
2.7 - 5.5 | 20 | 32 - 128 | 0,4 | 2.5 - 10 | 48 | |
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R8C/36W, R8C/36X, R8C/36Y, R8C/36Z Synchronous Serial Communication Unit, 10-bit A/D Converter, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module and CAN module compliant with ISO11898-1 (R8C/36W, R8C/36X). Maximum operating frequency is 20 MHz. 64-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/36W, R8C/36Y). |
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Development Environment |
2.7 - 5.5 | 20 | 64 - 128 | 0,4 | 6 - 10 | 64 | |
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R8C/38W, R8C/38X, R8C/38Y, R8C/38Z Synchronous Serial Communication Unit, 10-bit A/D Converter, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module and CAN module compliant with ISO11898-1 (R8C/38W, R8C/38X). Maximum operating frequency is 20 MHz. 80-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/38W, R8C/38Y). |
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Development Environment |
2.7 - 5.5 | 20 | 64 - 128 | 0,4 | 6 - 10 | 80 | |
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R8C/32A Support for the R8C/32A Group is limited to customers who have already adopted these products. If adopting new products, please consider other ranges such as the R8C/32C Group or R8C/32M Group. |
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Development Environment |
- | - | - | - | - | 20 | |
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R8C/33A Support for the R8C/33A Group is limited to customers who have already adopted these products. If adopting new products, please consider other ranges such as the R8C/33C Group or R8C/33M Group. |
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Development Environment |
- | - | - | - | - | - | |
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R8C/35A Support for the R8C/35A Group is limited to customers who have already adopted these products. If adopting new products, please consider other ranges such as the R8C/35C Group or R8C/35M Group. |
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Development Environment |
- | - | - | - | - | 52 | |
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R8C/36A Support for the R8C/36A Group is limited to customers who have already adopted these products. If adopting new products, please consider other ranges such as the R8C/36C Group or R8C/36M Group. |
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Development Environment |
- | 20 | - | 4 | - | 64 | |
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R8C/3GA Support for the R8C/3GA Group is limited to customers who have already adopted these products. If adopting new products, please consider other ranges such as the R8C/3GC Group. |
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Development Environment |
- | 20 | - | 4 | - | 24 | |
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R8C/3JA Support for the R8C/3JA Group is limited to customers who have already adopted these products. If adopting new products, please consider other ranges such as the R8C/3JC Group. |
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Development Environment |
- | 20 | - | 4 | - | 36 | |
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R8C/34E, R8C/34F, R8C/34G, R8C/34H Synchronous Serial Communication Unit, 10-bit A/D Converter, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module and CAN module compliant with ISO11898-1 (R8C/34E, R8C/34F). Maximum operating frequency is 20 MHz. 48-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/34E, R8C/34G). |
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Development Environment |
- | - | - | - | - | 48 | |
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R8C/36E, R8C/36F, R8C/36G, R8C/36H Synchronous Serial Communication Unit, 10-bit A/D Converter, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module and CAN module compliant with ISO11898-1 (R8C/36E, R8C/36F). Maximum operating frequency is 20 MHz. 64-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/36E, R8C/36G). |
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Development Environment |
- | 20 | 64 - 128 | 0,4 | 6 - 10 | 64 | |
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R8C/38E, R8C/38F, R8C/38G, R8C/38H Synchronous Serial Communication Unit, 10-bit A/D Converter, DTC (Data Transfer Controller), and Oscillation Stop Detection Function are added to standard peripherals. Equipped with Hardware LIN Module and CAN module compliant with ISO11898-1 (R8C/38E, R8C/38F). Maximum operating frequency is 20 MHz. 80-pin package is available. Data Flash with Background Operation (BGO) function (1 KB × 4 blocks) is embedded (R8C/38E, R8C/38G). |
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Development Environment |
- | 20 | 64 - 128 | 0,4 | 6 - 10 | 80 | |
Singapore/South & Southeast Asia/Oceania

