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R5F21238JFP#W4

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R5F21238JFP#W4

IC MCU 16BIT 64KB FLASH 48LFQFP

Manufacturer: Renesas Electronics Corporation

Categories: Microcontrollers

Quality Control: Learn More

The Renesas Electronics Corporation R8C/2x/23 series R5F21238JFP-W4 is a 16-bit microcontroller featuring a 20MHz R8C core. This device offers 64KB of FLASH program memory and 2KB of EEPROM, complemented by 3KB of RAM. Connectivity options include CANbus, I2C, LINbus, SIO, SSU, and UART/USART interfaces. It integrates a 12-channel, 10-bit Analog-to-Digital converter and essential peripherals such as Power-On Reset (POR), Voltage Detection, and Watchdog Timer (WDT). With 41 I/O lines and a 48-LQFP (7x7) surface mount package, this component operates within a voltage range of 2.7V to 5.5V and an ambient temperature range of -40°C to 85°C. Typical applications include automotive control systems and industrial automation. This component is supplied in Tape & Reel packaging.

Additional Information

Series: R8C/2x/23RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tape & Reel (TR)Datasheet:
Technical Details:
PackagingTape & Reel (TR)
Package / Case48-LQFP
Mounting TypeSurface Mount
Speed20MHz
Program Memory Size64KB (64K x 8)
RAM Size3K x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeInternal
Program Memory TypeFLASH
EEPROM Size2K x 8
Core ProcessorR8C
Data ConvertersA/D 12x10b
Core Size16-Bit
Voltage - Supply (Vcc/Vdd)2.7V ~ 5.5V
ConnectivityCANbus, I2C, LINbus, SIO, SSU, UART/USART
PeripheralsPOR, Voltage Detect, WDT
Supplier Device Package48-LQFP (7x7)
Number of I/O41
ProgrammableNot Verified

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Microcontroller FAQs

A microcontroller is a compact integrated circuit that combines a processor, memory, and input/output peripherals for embedded control applications.

Microcontrollers execute programmed instructions to process sensor inputs and control outputs such as motors, displays, and communication interfaces.

Microcontrollers are commonly used in:

  • Automotive systems
  • Robotics
  • IoT devices
  • Industrial automation
  • Household appliances
  • Smart electronics

Microcontrollers integrate memory and peripherals on-chip for dedicated tasks, while microprocessors are designed for higher-performance computing systems requiring external components.

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