Renesas Electronics America Inc R5F100LKGFB#V0

RL78/G13 Series R5F100LKGFB#V0 Product Summary

The Renesas RL78/G13 Series R5F100LKGFB#V0 microcontroller (MCU) is engineered for general-purpose embedded applications demanding strong performance, ultra-low power, and versatile peripheral support. Built around a 16-bit CISC RL78 CPU core running at up to 32MHz, R5F100LKGFB#V0 offers 384KB of onboard flash memory, ample RAM resources, and up to 41 DMIPS computational throughput. Its operational voltage flexibility (1.6V to 5.5V) and robust package variants (including the widely used 64-LFQFP package with compact 10x10mm footprint) suit both consumer and industrial-grade designs.

Core Features and Capabilities of RL78/G13 Series R5F100LKGFB#V0

The RL78/G13 Series demonstrates a comprehensive suite of integrated features, facilitating seamless hardware development:

Ultra-low power technology: Delivers optimized current profiles, consuming approximately 66μA/MHz in active mode and as low as 0.57μA during real-time clock (RTC) or voltage detection operations.

Multiple power management modes (HALT, STOP, SNOOZE): Allow dynamic power optimization across diverse use cases, including battery-sensitive embedded devices.

1MB address space with flexible register banking: Ensures efficient code execution and memory access.

Enhanced memory subsystem: 384KB code flash (with security, block management, and on-chip debug support) plus up to 8KB data flash supporting 1,000,000 typical rewrites and background write operation.

Built-in frequency flexibility: Internal oscillator selections range from 1MHz to 32MHz with ±1.0% accuracy across a wide temperature and voltage envelope.

Wide temperature range: Devices are specified for consumer applications (-40°C to +85°C) and industrial applications (-40°C to +105°C), with derating recommendations for operation at elevated temperatures.

Integrated peripherals: DMA controller (up to 4 channels), math accelerator (multiply/divide/accumulate), and key interrupt/data protection features.

Advanced timers: 16-bit timer array (up to 16 channels), 12-bit interval timer, programmable RTC (with alarm/calendar), watchdog timer, and clock/buzzer controllers.

Multi-channel A/D converter: Supports up to 10-bit resolution and as many as 26 analog input channels, with on-chip reference voltage and temperature sensor options.

Flexible I/O: Supports up to 120 pins, with N-ch open drain, TTL input buffering, on-chip pull-up, multi-voltage interfacing (1.8V/2.5V/3V), and user-programmable pin functions.

RL78/G13 Series R5F100LKGFB#V0 Package Formats and Physical Attributes

The RL78/G13 Series is available in a broad range of packages (LQFP, LFQFP, HWQFN, VFBGA, LSSOP, TSSOP, WFLGA), spanning 20 to 128 pins and suiting everything from compact consumer electronics to interface-rich industrial controllers. The R5F100LKGFB#V0 model itself features the 64-LFQFP package (10x10mm, 0.5mm pitch), delivering high pin-count connectivity without excessive board real estate.

Package-level engineering notes include:

REGC pin connection requirements: Must be tied to Vss via a 0.47–1μF capacitor for stable regulation; certain multi-voltage packages require additional considerations for noise-sensitive applications.

Ground and power isolation recommendations for reduced on-chip noise and interference, including the use of separate supply and ground lines for core and I/O rails.

Pin multiplexing: Many pins offer selectable alternate functions via the peripheral I/O redirection register (PIOR).

RL78/G13 Series R5F100LKGFB#V0 Electrical Characteristics

The RL78/G13 R5F100LKGFB#V0 supports operation from 1.6V to 5.5V, with detailed specifications for supply currents, oscillator stability, pin-level output/input characteristics, and robust data retention.

Key electrical performance aspects:

Supply currents: Active operation scales based on voltage, frequency, and mode (active, HALT, STOP, SNOOZE), offering class-leading efficiency for battery-powered applications.

Absolute maximum ratings: Strict adherence required to avoid physical damage; includes max voltages for pins and reference voltages.

Oscillator characteristics: Internal oscillator selectable by user, with defined stabilization timing; external crystal oscillator support including hardware initialization recommendations.

Pin characteristics: Maximum allowable current, voltage swing, and duty cycles provided for all functional pins, enabling detailed I/O interface design.

Flash memory: Endurance of 1,000,000 typical rewrite cycles, retention across broad temperature and voltage range; onboard programming via dedicated UART mode.

RAM retention: Data preserved during power-cycling up to internal POR detection thresholds.

RL78/G13 Series R5F100LKGFB#V0 Communication Protocols and Interface Options

Versatile connectivity is a hallmark of the RL78/G13 Series:

UART (LIN supported): Up to four independent channels, supporting multi-voltage and multi-protocol interfacing, including differential voltage operation (down to 1.8V).

Simplified SPI (CSI: up to eight channels): Each CSI instance configurable for master/slave, internal/external clocking, and multi-voltage interface.

I²C / Simplified I²C: Up to ten channels enable broad support for sensor interfacing and peripheral expansion.

Communication at different potentials: The RL78/G13 I/O architecture supports mixed-voltage busses, with selectable buffer/output modes and detailed timing/baud rate error management formulas.

All serial interfaces are programmable for standby (SNOOZE) operation, low baud rates for battery conservation, and alternate pin mapping (PIOR), enabling flexible board layout.

Analog Features and ADC Functions of RL78/G13 Series R5F100LKGFB#V0

Comprehensive analog capabilities are built in:

Up to 26-channel multi-voltage A/D converter: Supports 8/10-bit precision, programmable reference sources (external, VDD, internal BGR), and integrates an on-chip temperature sensor.

Reference voltage architecture: User-selectable reference sources for optimal measurement accuracy or rail-to-rail operation; error margins provided for scale linearity, zero-scale, and full-scale conditions.

On-chip analog peripherals: Real-time clock (RTC) with calendar and alarm, internal voltage detection (LVD), and programmable timer outputs.

Data flash: Facilitates persistent data log or configuration storage with high endurance and background write operations, minimizing downtime during field update or configuration changes.

Durability and Environmental Performance of RL78/G13 Series R5F100LKGFB#V0

RL78/G13 Series R5F100LKGFB#V0 MCUs are designed to meet high standards of reliability and environmental resilience:

ROHS3 compliant: Ensures suitability for modern, eco-conscious manufacturing.

Moisture Sensitivity Level (MSL) 3 (168 hours): Supports robust handling and assembly.

Industrial and consumer operation: Full performance specified across -40°C to +85°C (consumer/industrial), and -40°C to +105°C (industrial G-variant), with derating guidance for prolonged high-temperature scenarios.

Internal protections: Integrated POR and LVD circuits facilitate reliable boot and protection against brownout events, with programmable thresholds and response modes.

Alternative or Substitute Models for RL78/G13 Series R5F100LKGFB#V0

Given the scale and modularity of the RL78/G13 platform, users seeking alternatives to the R5F100LKGFB#V0 should evaluate adjacent devices within the RL78/G13 series:

Memory mapping: RL78/G13 offers a range of code flash sizes (16KB to 512KB) and corresponding RAM, with otherwise compatible software and functional characteristics.

Package alternatives: Board layout changes may be minimised by selecting a package-width variant within RL78/G13, such as 44-pin LQFP, 48-pin HWQFN, or higher pin-count devices for extra I/O.

Temperature rating: For extended high-temperature applications, select G-suffix devices, validated for -40°C to +105°C.

Peripheral options: For applications with fewer or more serial channels, alternative RL78/G13 MCUs may offer a better fit.

Functional drop-in: The RL78/G14 series offers upward compatibility for users requiring greater computational or peripheral capabilities.

Engineers are advised to consult the RL78/G13 product selector and updated part number tables on the Renesas Electronics website for latest compatibility and lifecycle status information.

Conclusion

The Renesas RL78/G13 Series R5F100LKGFB#V0 microcontroller distinguishes itself in the 16-bit MCU space through superior energy efficiency, rich peripheral integration, and modular package options. Its ultra-low power architecture and broad voltage range allow deployment in cost- and power-sensitive applications ranging from smart appliances to industrial control systems. By enabling flexibility in interface design, analog performance, and reliability, RL78/G13 MCUs—typified by R5F100LKGFB#V0—are an optimal choice for engineers and procurement professionals seeking a robust solution for contemporary embedded designs. For replacement or design scaling, a comprehensive RL78/G13 ecosystem ensures seamless migration and futureproofing.