Low power consumption, standard LCD microcontrollers suitable for LCD display of home appliances or measurement devices
RL78/L13 microcontrollers have a built-in segment LCD driver. Three LCD driving voltage generation methods (external resistance division, capacitive split, and internal voltage boost) are supported, corresponding to a variety of segment LCD panels. They realize low current consumption (*1): external resistance division: 1.61 μA (*2), and internal voltage boost: 1.42 μA, and capacitive split: 0.77 µA. With a lineup of 64/80-pin products supporting up to 376 segments, these microcontrollers are perfect for devices with built-in LCD panels such as home appliances and healthcare devices.
(*1) Current (typ.) at 1/3 bias, subclock operation, HALT mode, and RTC operation
(*2) Resistance value for external resistance division = 1000 kΩ
|Memory||Program Flash||16 to 128 KB|
|Data Flash||4 KB|
|SRAM||1 to 8 KB|
|CPU||RL78 CPU Core|
|Operating Frequency||24 MHz (max.)|
|Clock circuit||High speed system clock||
|High speed on-chip oscillator||
|subsystem clock||XT1(crystal) oscillation, external subsystem clock input (EXCLKS) 32.768 kHz (VDD=1.6 to 5.5V)|
|Low speed on-chip oscillator||Internal oscillation 15 KHz(TYP.) : VDD=1.6 to 5.5V|
|I / O||49||65|
|Timer||TAU(16-bit timer)||8 ch (with 1 ch remote control output function) (timer outputs: 8, PWM output 7 ch)|
|KB20(16-bit timer)||1 ch (PWM outputs: 2)|
|Watchdog Timer||1 ch|
|12-bit timer||Interval timer x 1 ch (15 kHz/32.768 kHz)|
|Real-time clock2 (RTC2)||1 ch|
|8/10-bit A/D Convertor||9 ch||12 ch|
|UART: 1 ch||1||2|
|Vector interrupt||11 (external) / 32 (internal)||11 (external) / 35 (internal)|
|LCD controller/driver||Method||Internal voltage boosting method, capacitor split method, and external resistance division method are switchable|
|Segment signal output||36(32)||51(47)|
|Common signal output||4(8)|
|Multiplier and divider /||16*16,32/32,16*16+32|
|Other peripheral functions||LVD, POR, Key return, Clock output/buzzer function|
|On-chip debug function||Available|
|Power supply voltage||VDD = 1.6 to 5.5 V|
|Operating ambient temperature||TA = -40 to + 85 ℃ for A-Version product / TA = -40 to + 105 ℃ for G-Version product|
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Software Design Support
|e² studio||This integrated development environment (IDE) is based on the popular combination of the open-source Eclipse IDE and its CDT plug-in that enables C/C++ language development.
|CS+||This integrated development environment (IDE) can be used for coding, assembly, compiling, and simulation. CS+ is also included with starter kits.
|E2 emulator Lite||This entry-level on-chip debugging emulator provides functionality equivalent to that of the E1 emulator at a low price.
|E2 emulator||This on-chip debugging emulator has advanced features that improve the efficiency of development. In addition to the basic functions from debugging to flash programming, this emulator supports hot plug-in and external triggers as standard items. This emulator also helps to reduce development time by downloading at high speeds (compared to the E1 emulator) and the ability to work in combination with various solutions such as the tuning of current drawn by systems under development.
|E1 emulator||This on-chip debugging emulator is a standard model which provides basic debugging functions (production is to be discontinued at the end of December 2019).|
Hardware Design Support
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