Renesas Electronics America Inc R5F100LHGFA#10

R5F100LHGFA#10 RL78/G13 Microcontroller Product Summary

The R5F100LHGFA#10 is a high-performance 16-bit microcontroller (MCU) from Renesas Electronics, belonging to the RL78/G13 series. Designed around the advanced RL78 CPU core, this MCU offers a combination of true ultra-low power operation, a wide voltage, and temperature range, as well as a flexible peripheral set tailored for robust general-purpose and industrial applications. With 192KB of embedded flash memory, this device is offered in a 64-pin LQFP package (12x12 mm) and supports operation at up to 32MHz. The RL78/G13 series presents a scalable platform supporting code flash memory from 16KB to 512KB, which benefits both cost-sensitive products and function-rich embedded systems.

Main Characteristics and Structure of R5F100LHGFA#10 RL78/G13

At the heart of the R5F100LHGFA#10 is a CISC-architecture CPU featuring a 3-stage pipeline and a minimum instruction execution time selectable from very high speed (0.03125μs at 32MHz) to ultra-low speed (30.5μs at 32.768kHz), enabling a balance of performance and energy efficiency. The core is complemented by 2–32KB of on-chip RAM and a 1MB address space, making it suitable for code-intensive applications.

The device’s low-power operation (66μA/MHz, or 0.57μA in RTC+LVD-only mode) is achieved through multiple standby modes (HALT, STOP, SNOOZE), and single-supply voltage compatibility from 1.6V to 5.5V. This accommodates both battery-powered and line-powered designs. On-chip flash supports block management, security (prohibited block erase/rewrite), self-programming, and debug functionality.

A robust DMA controller offers 2–4 channels for fast internal data transfers. The flexible clock system includes a high-speed oscillator (1MHz–32MHz, ±1% over -20 to 85°C, 1.8–5.5V) and multiple oscillator options for real-time, timer, and event-driven applications.

Power Ratings and Operational Limits of R5F100LHGFA#10 RL78/G13

The R5F100LHGFA#10 caters to both consumer and industrial grades, supporting ambient temperatures from -40°C up to +85°C and up to +105°C for dedicated industrial models. It is engineered for reliable operation across a broad power supply range. The electrical design meets rigorous absolute maximum ratings. Designers must ensure that all voltage, current, and ESD limits are observed to maintain device reliability.

Supply current characteristics scale with operating mode:

Active Mode (32MHz): ~66μA/MHz (typical)

RTC/LVD only: ~0.57μA (typical)

HALT, STOP, SNOOZE and subsystem clock modes adapt current draw to the system's operational needs.

Pin characteristics, including maximum current sourcing/sinking values, differential input thresholds, and output buffer configuration (open-drain, TTL-compatible, pull-up) ensure compatibility with a wide range of peripheral circuitry.

Built-in Peripheral Devices of R5F100LHGFA#10 RL78/G13

The R5F100LHGFA#10 is distinguished by its comprehensive peripheral set, positioning it as a versatile MCU for both standalone control and complex node applications:

Serial Interfaces: Up to 8 channels of simplified SPI (CSI), 2–4 channels of UART (with LIN support), and 3–10 channels of I2C/simplified I2C.

Timers: Multiple channels of 16-bit timers (up to 16), a 12-bit interval timer, real-time clock with calendar/alarm/auto-correction, and a robust watchdog.

Analog Modules: 8/10-bit A/D converter (6–26 channels), internal reference voltages (1.45V), and built-in temperature sensor.

Power Management: Power-on-reset (POR), multi-level voltage detection (LVD) with flexible reset/interrupt selection, and sophisticated oscillation circuits.

Digital I/O: Up to 120 configurable I/O ports (open-drain/high-voltage tolerant/TTL/pull-up). Key interrupt and peripheral IO redirection provide significant board-level flexibility and alternate pin mapping.

Package Types and Pin Layout Choices for R5F100LHGFA#10 RL78/G13

The RL78/G13 family, including R5F100LHGFA#10, is available in a wide choice of packages (LQFP, LFQFP, HWQFN, WFLGA, VFBGA) and pin counts (20 up to 128), enabling design scaling from ultra-compact to high-connectivity platforms. The specific R5F100LHGFA#10 package is a 64-pin LQFP (12x12mm), with full documentation on pin assignments, function mapping, alternate functions (via IO redirection register), and guidance for proper grounding and decoupling layouts.

Designers are cautioned to reference the “outline of functions” and pin identification details, especially when seeking pin muxing flexibility or noise reduction in sensitive applications, such as analog signal acquisition.

Environmental Impact and Quality Assurance of R5F100LHGFA#10 RL78/G13

The R5F100LHGFA#10 meets Moisture Sensitivity Level (MSL) 3 (168 hours), supporting common assembly and board reflow processes. The device is classified under ECCN 3A991A2 and HTSUS 8542.31.0001 for international trade and supply chain management. Data retention and endurance are robust: Flash memory supports 1 million typical rewrite cycles (self-programming mode), and RAM data is preserved as dictated by POR detection voltage thresholds.

For high-reliability or extended-temperature industrial deployments, derating recommendations and operational guarantees through -40°C to +105°C are available (for “G” grade devices).

Use Cases and Design Guidelines for R5F100LHGFA#10 RL78/G13

The R5F100LHGFA#10’s balance of memory size, ultra-low-power modes, scalable processing performance, and rich connectivity makes it suitable for applications including:

Industrial motor or process control with multiple real-time timers and robust analog front ends.

Consumer or white goods requiring reliability and low standby power (e.g., HALT/STOP/SNOOZE modes).

Battery-powered or handheld devices benefiting from operation down to 1.6V and current consumption as low as 0.57μA in RTC mode.

Networked sensor interfaces using integrated UART, SPI/CSI, and I2C, with alternate voltage/potential communication features.

Reliability in operation is further enhanced by power-on-reset, LVD, debug security, and flexible boot/self-programming schemes. For instance, in safety-oriented industrial contexts, the selectable LVD levels allow for precise control over brownout and fault detection strategies.

Alternative and Substitute Models for R5F100LHGFA#10 RL78/G13

When designing with the R5F100LHGFA#10 RL78/G13, engineers may consider other RL78/G13 family variants as potential equivalents or replacements, depending on required memory size, pin count, package form factor, or industrial/consumer temperature ratings. Example alternatives within the RL78/G13 family can include:

R5F100MLGFA#10 (with different pin/package options but comparable core and feature set)

R5F100MGGFA#10 (for +105°C industrial grade)

Lower or higher code flash variants (e.g., R5F1008E, R5F100EE) if less or more memory is needed.

For detailed cross-reference, consult the full RL78/G13 device table. Selection should consider package compatibility, memory requirements, and temperature/environmental ratings.

Conclusion

The Renesas R5F100LHGFA#10 microcontroller stands out in the RL78/G13 portfolio as an optimal combination of ultra-low power, flexible peripherals, robust analog/digital mix, and scalable memory—all within a broad range of packages and temperature grades. For engineers in device selection and procurement, it offers strong longevity assurance, field-proven design robustness, and utility across a span of industrial and consumer application domains. Device choice should be matched to specific application needs, referencing the underlying RL78/G13 architecture and available package, memory, and environmental options to ensure project success and supply continuity.