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R5F100JEAFA

RL78 16-bit MCU, 64KB flash, 4KB RAM, 12-ch ADC, 32MHz, LQFP-48

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Manufacturer Part：

R5F100JEAFA

Package：

LQFP-48 (7 x 7 x 1.4 mm)

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Description

Product Overview

The R5F100JEAFA from Renesas Electronics is a 16-bit RL78 microcontroller with 64KB flash, 4KB RAM, and rich analog peripherals including 10-bit ADC and comparator. Operating at up to 32MHz with wide 1.6V to 5.5V supply range, it targets low-power consumer and industrial applications in an LQFP-48 package.

Key Specifications

Core RL78 16-bit
Program Memory 64 KB Flash
RAM 4 KB
Data Flash 4 KB
Max Clock Frequency 32 MHz
I/O Pins 40
ADC 12-channel 10-bit
Supply Voltage 1.6V to 5.5V
Package LQFP-48 (7 x 7 mm)
Operating Temperature -40°C to +85°C

Features

  • RL78 16-bit core with high code efficiency (78K0R instruction set)
  • Ultra-low power consumption: 240μA/MHz (CPU), 0.68μA (standby)
  • 12-channel 10-bit A/D converter with high-speed conversion
  • Multiple serial interfaces: UART x 4, CSI (SPI) x 4, simplified I2C x 4

Applications

  • Consumer electronics and home appliance control
  • Industrial sensor and actuator interfaces
  • Battery-powered portable instruments
  • Building automation and HVAC controllers
  • Motor control in small appliances

The R5F100JEAFA from Renesas Electronics is a member of the RL78/G13 family of low-power 16-bit microcontrollers. Based on the RL78 core which combines the instruction sets of the 78K0R and R8C families, it delivers high code efficiency and processing performance at up to 32MHz. The device features 64KB of flash program memory, 4KB of RAM, and 4KB of data flash for parameter storage. Rich peripheral integration includes a 12-channel 10-bit ADC, multiple serial interfaces (4x UART, 4x CSI/SPI, 4x simplified I2C), timers, and a comparator. With ultra-low power consumption of 240μA/MHz during CPU operation and 0.68μA in standby mode, it is ideal for battery-powered and energy-conscious applications.

The R5F100JEAFA operates around four primary subsystems. (1) The RL78 CPU core executes the 78K0R-compatible instruction set with 16-bit processing at up to 32MHz, accessing 64KB flash and 4KB RAM through a unified address space. The core supports background operation (BGO) for flash programming and features a hardware multiplier for efficient computation. (2) The clock system provides flexible clock sources including a high-speed on-chip oscillator (up to 32MHz), external crystal/ceramic resonator, and low-speed on-chip oscillator (15kHz) for low-power modes. (3) The analog subsystem includes a 10-bit successive approximation ADC with 12 input channels and conversion times as fast as 3.5μs, plus a comparator for simple threshold detection. (4) The serial communication subsystem supports multiple UART, SPI, and I2C interfaces for connecting to external sensors, displays, and communication modules.

Pin Group Name Function
1-4 P10-P13 Port 1 I/O, ADC channels 0-3
5-8 P14-P17 Port 1 I/O, ADC channels 4-7
9-12 P20-P23 Port 2 I/O, serial interfaces
13-16 P30-P33 Port 3 I/O, timer I/O
17-20 P40-P43 Port 4 I/O, ADC channels 8-11
21-24 VDD/VSS Power supply and ground
25-48 Various Remaining ports, RESET, X1/X2, EVDD, MODE
  • Home appliance motor control with ADC feedback and PWM output
  • Industrial sensor nodes collecting multi-channel analog data via 12-ch ADC
  • Battery-powered portable instruments with sub-microamp standby current
  • Building HVAC controllers with multiple serial communication interfaces
  • Consumer electronics requiring low-cost 16-bit processing with rich analog I/O
Model Manufacturer Key Difference
R5F100LEAFA Renesas 128KB flash version
R5F100MEAFA Renesas 256KB flash version
R5F104GEAFA Renesas RL78/G14 with DA converter
PIC24FJ64GA002 Microchip 16-bit, 64KB flash, SOIC-28
MSP430F5529 TI 16-bit, 128KB flash, LQFP-80
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

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Contact Information

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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