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    4. Renesas Electronics Announces New Ultimate-Low-Power RL78 Microcontrollers with Built-in LCD Controller

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RL78/L12 Microcontrollers


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Main Specifications of Renesas' RL78/L12 MCUs

Item Specifications
Group Name RL78/L12
Pin-count 32-pin 44-pin 48-pin 52-pin 64-pin
Code flash memory (Bytes) 8 K, 16 K, 32 K 16 K, 32 K
Data flash memory (Bytes) 2 K
RAM 1 K, 1.5 K
Clock Main system clock External main system clock input: 1 to 20 MHz
High speed on-chip oscillator clock: 24/16/12/8/4/1 MHz
Sub system clock XT1 (crystal) oscillation, external subsystem clock
32.768 kHz (TYP.): VDD = 1.6 to 5.5 V
Low-speed on-chip oscillator clock Internal oscillation
15 kHz(TYP.)
CPU RL78 CPU core (16-bit CISC CPU)
30 DMIPS (24 MHz operation)
I/O 20 29 33 37 47
Timer 16-bit timer: 6 ch
“16-bit timer / 8-bit timer: 2 ch”: 2 ch
8/10-bit A/D 4 ch 7 ch 9 ch 10 ch 10 ch
Serial I/F UART (LIN-bus supported): 1ch / CSI: 2 ch
I2C: 1 ch
LCD controller/driver Selectable LCD drive power supply (internal voltage boosting method / capacitor split method / external resistance division).
  Segment signal output 13 22 (18)Note 1 26 (22)Note 1 30 (26)Note 1 39 (35)Note 1
Common signal output 4 4 (8)Note 1
External interrupt sources 4 6 7 7 9
DMA 2 ch
Other features Multiplier and divider/multiply accumulator
Clock output/buzzer output
Watchdog timer (WDT), real-time clock (RTC)
Low voltage detection (LVD), power-on reset (POR)
Safety functions, on-chip debug function
Power supply voltage 1.6 to 5.5 V
Operating ambient temperature −40℃ to +85℃
  • *Note 1: The value inside the parentheses ( ) is the number of segment signal outputs during 8COM operation.

(Remarks) The new RL78 Family uses SuperFlash® technology licensed from Silicon Storage Technology, Inc. SuperFlash® is a registered trademark of Silicon Storage Technology, Inc., of the U.S.A. in the United States, Japan, and other countries. Names of products or services mentioned in this release are the trademarks or registered trademarks of their respective owners.

The content in the press release, including, but not limited to, product prices and specifications, is based on the information as of the date indicated on the document, but may be subject to change without prior notice.