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Features

  • CPU: RL78 core, Max. 24MHz
  • Voltage: 1.6V to 3.6V
  • Package: 24-pin to 32-pin QFN, 32-pin to 48-pin QFP, 20-pin to 30-pin SOP
  • Memory: SRAM Max. 3KB, Program Flash Max. 32KB

Description

The RL78/I1D microcontroller has enhanced analog functions such as operational amplifiers, 12-bit A/D converter, and window comparators. The MCU also supports very-low power operation (124µA at 1MHz) and a high-speed 4µs wake up.

Parameters

Attributes Value
Program Memory (KB) 8, 16, 32
Data Flash (KB) 2
RAM (KB) 0.7, 2, 3
Carrier Type Full Carton (Tray), Full Tray (Tray), Magazine, Tape & Reel
Supply Voltage (V) -
I/O Ports 14, 18, 24, 26, 42
Temp. Range (°C) Ta = -40 to +105
Operating Freq (Max) (MHz) 24
USB FS (host ch/device ch) ( 0 / 0 )
SCI or UART (ch) 1
SPI (ch) 1, 2
I2C (#) 1, 2
CAN (ch) 0
CAN-FD (ch) 0
Wireless No
LIN (#) 1
16-Bit Timer (ch) (#) 4
12-Bit A/D Converter (ch) 6, 12, 17
10-Bit A/D Converter (ch) 0
24-Bit Sigma-Delta A/D Converter (ch) 0
12-Bit D/A Converter (ch) 0
10-Bit D/A Converter (ch) (#) 0
8-Bit D/A Converter (ch) 0
Capacitive Touch Sensing Unit (ch) 0
Segment LCD Controller No
Security & Encryption No

Package Options

Pkg. Type Pkg. Dimensions (mm) Lead Count (#) Pitch (mm)
HVQFN 5 x 5 x 0.9 32 0.5
HWQFN 4 x 4 x 0.8 24 0.5
LFQFP 7 x 7 x 1.7 48 0.5
LQFP 7 x 7 x 1.7 32 0.8
LSSOP 6 x 4 x 1.45 20 0.65
LSSOP 9.85 x 6.1 x 1.4 30 0.65
TSSOP 6.5 x 4.4 x 1.2 20 0.65

Application Block Diagrams

Simplified Contactless Thermometer Block Diagram
Contactless IR Thermometer
Contactless IR thermometer features a low‑power MCU, precision ADC, charger, and display.
4-20mA Current Loop Transmitter Block Diagram
4-20mA Current Loop Transmitter
4-20mA transmitter with ultra-low power MCU, stable power, and precision analog performance.

Additional Applications

  • Healthcare
  • Human machine interface
  • Office security

Applied Filters:

The easy-to-build RL78 Quick Solutions feature Renesas' ultra-low power RL78 MCUs and analog devices. These solutions showcase device combinations that improve design performance and power efficiency to support your product development.