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R5F21237KFP#U1

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R5F21237KFP#U1

IC MCU 16BIT 48KB FLASH 48LFQFP

Manufacturer: Renesas Electronics Corporation

Categories: Microcontrollers

Quality Control: Learn More

Renesas Electronics Corporation R8C/2x/23 Series microcontroller, part number R5F21237KFP-U1. This 16-bit microcontroller features a 16MHz R8C core and operates from a 2.7V to 5.5V supply. It offers 48KB of FLASH program memory and 2.5KB of RAM, complemented by 2KB of EEPROM. Connectivity options include CANbus, I2C, LINbus, SIO, SSU, and UART/USART. The device integrates a 12-channel, 10-bit Analog-to-Digital converter and peripherals such as Power-On Reset (POR), Voltage Detect, and Watchdog Timer (WDT). With 41 I/O lines and an operating temperature range of -40°C to 125°C, this surface-mount component is housed in a 48-LQFP (7x7) package. Applications span industrial automation, automotive control, and consumer electronics.

Additional Information

Series: R8C/2x/23RoHS Status: ROHS3 CompliantManufacturer Lead Time: 12 week(s)Product Status: Not For New DesignsPackaging: TrayDatasheet:
Technical Details:
PackagingTray
Package / Case48-LQFP
Mounting TypeSurface Mount
Speed16MHz
Program Memory Size48KB (48K x 8)
RAM Size2.5K x 8
Operating Temperature-40°C ~ 125°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
ProgrammableVerified

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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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