Extremely-low-power RL78/L23 MCUs with section LCD shows & capacitive contact for HMI functions
Renesas Electronics Company, a premier provider of superior semiconductor options, launched the brand new 16-bit RL78/L23 microcontroller (MCU) group, increasing its low-power RL78 household. Working at 32MHz, the RL78/L23 MCUs mix industry-leading low-power efficiency with important options akin to dual-bank flash reminiscence, section LCD management, and capacitive contact performance to help sensible dwelling home equipment, client electronics, IoT and metering methods. These compact, cost-effective units deal with the efficiency and energy necessities of contemporary display-based human-machine interface (HMI) functions.
Extremely-Low Energy Operation with Optimized LCD Efficiency
The RL78/L23 is optimized for ultra-low energy consumption and perfect for battery-powered functions that spend the vast majority of time in standby. They provide an energetic present of simply 109μA/MHz and a standby present as little as 0.365μA, together with a quick 1μs wake-up time to assist decrease CPU exercise. The LCD controller’s new reference mode, VL4, reduces LCD working present by roughly 30 % when in comparison with the prevailing RL78/L1X group. The MCUs include SMS (SNOOZE Mode Sequencer), which permits dynamic LCD section show with out CPU intervention. By offloading duties to the SMS, the units decrease CPU wake-ups and contribute to system-level energy financial savings. These improvements considerably lengthen battery life, simplify design and scale back alternative prices, whereas minimizing environmental affect.
The RL78/L23 gives a large working voltage vary of 1.6V to five.5V, which helps direct operation from 5V energy provides generally utilized in dwelling home equipment and industrial methods. This functionality reduces the necessity for exterior voltage regulators. The MCUs additionally combine key parts akin to capacitive contact sensing, a temperature sensor, and inner oscillator, decreasing BOM price and PCB measurement.
Characteristic-Wealthy Peripherals for HMI Programs
Designed to satisfy the dynamic necessities of the HMI market, RL78/L23 integrates a set of superior options in a compact, cost-effective package deal. Its built-in section LCD controller and capacitive contact notice glossy, responsive consumer interfaces for merchandise akin to induction cooktops and HVAC methods. The IH timer (Timer KB40) permits exact multi-channel warmth management, which is crucial in sensible kitchen home equipment akin to rice cookers and IH cooktops. The units embody dual-bank flash reminiscence for seamless firmware updates by way of FOTA (Firmware Over-the-Air), permitting steady system operation in functions like metering, the place downtime should be minimized. The twin-bank structure permits one reminiscence financial institution to run the consumer program, whereas the opposite receives updates. This method retains the system useful all through the method for improved reliability.
“The Renesas RL78 Household of 16-bit microcontrollers has been one of the profitable merchandise since its launch greater than 10 years in the past, notably in dwelling home equipment,” stated Daryl Khoo, Vice President of Embedded Processing at Renesas. “I’m happy to announce the RL78/L23, a brand new era of RL78 microcontrollers with wealthy options, ideally suited to sensible dwelling home equipment and cost-sensitive IoT options. With these units, we goal to supply a greater consumer expertise with our intuitive improvement atmosphere in order that prospects can get to manufacturing sooner with confidence, primarily based on market-proven Renesas applied sciences.”
Key Options of the RL78/L23
16-bit RL78 microcontroller operating at 32MHzBuilt-in section LCD controller and capacitive touchUp to 512KB of dual-bank flash reminiscence for seamless FOTAUp to 32KB of SRAM and 8KB of knowledge flashSMS for ultra-low energy operationIH Timer (KB40) supporting as much as 3-channel induction heating controlWide working voltage vary from 1.6V to five.5VOperating temperature vary of -40°C to +105°CMultiple serial interfaces together with UART, I2C, CSIIEC60730-compliant self-test library44-100-pin LFQFP, LQFP and HWQFN packages.
Intuitive Improvement Atmosphere for Quicker Time-to-Market
The RL78/L23 comes with an easy-to-use improvement atmosphere. Builders can leverage strong help instruments akin to Good Configurator and QE for Capacitive Contact to streamline system design.
