Renesas R5F101LCABG#W0

Overview

R5F101LCABG#W0 from Renesas is a 64-pin VFBGA-packaged RL78/G13 16-bit microcontroller with 128 KB flash memory, 8 KB RAM, and no data flash. It operates from 1.6 V to 5.5 V, delivers 41 DMIPS at 32 MHz, and supports ultra-low-power modes (0.57 μA in RTC+LVD mode), targeting battery-powered industrial sensors and smart metering interfaces.

For engineers reviewing the R5F101LCABG#W0 datasheet, R5F101LCABG#W0 pinout, R5F101LCABG#W0 application, or R5F101LCABG#W0 equivalent, key selection criteria include its VFBGA-64 package, absence of on-chip data flash, industrial-grade temperature range (–40°C to +105°C), and integrated peripherals including 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, and CSI serial interfaces.

Technical Context

The R5F101LCABG#W0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory map spans 1 MB address space with 128 KB code flash and 8 KB RAM.

It integrates a 10-bit A/D converter with up to 26 analog inputs, real-time clock with calendar and alarm, watchdog timer, DMA controller (4 channels), and hardware multiplier/divider. Power management includes on-chip POR, LVD with 14 selectable levels, HALT/STOP/SNOOZE modes, and a high-accuracy ±1.0% on-chip oscillator (1–32 MHz).

Key Specifications

Pinout & Package

VFBGA-64 package (4 mm × 4 mm, 0.4 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F100LCABG#W0, the R5F101LCABG#W0 trades data flash for higher code density margin and extended temperature capability; versus R5F101LGABG#W0, it provides greater firmware capacity and thermal robustness at identical pin count and package, making it optimal for next-generation industrial edge devices.

Availability

R5F101LCABG#W0 is available at Aetrix Electronics and suitable for smart metering, industrial motor control, wireless sensor networks, and PLC I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R5F101LCABG#W0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding industrial applications - balancing performance, integration, and energy efficiency.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the R5F101LCABG#W0?

The R5F101LCABG#W0 operates at up to 32 MHz and achieves 41 DMIPS performance. This metric reflects its RL78 CPU core's efficiency in executing instructions under typical workloads, enabling responsive real-time control in applications such as motor commutation and sensor data processing. The R5F101LCABG#W0 maintains this performance across its full industrial temperature range (–40°C to +105°C) with appropriate voltage scaling.

Does the R5F101LCABG#W0 include on-chip data flash memory?

No, the R5F101LCABG#W0 does not include on-chip data flash memory. As indicated by the "101" prefix in its part number (per Renesas RL78/G13 documentation), this variant provides only code flash (128 KB) and SRAM (8 KB). For applications requiring nonvolatile parameter storage, external EEPROM or SPI flash must be used - or the pin-compatible R5F100LCABG#W0 (with 4 KB data flash) selected instead. The R5F101LCABG#W0 retains full self-programming capability for its code flash.

What package type and pin count does the R5F101LCABG#W0 use?

The R5F101LCABG#W0 uses a 64-pin Very Thin Fine-Pitch Ball Grid Array (VFBGA) package measuring 4 mm × 4 mm with 0.4 mm ball pitch. The "BG" suffix in the part number explicitly denotes VFBGA, and "#W0" indicates embossed tape packaging. This compact, thermally efficient package supports high-density PCB layouts required in space-constrained industrial modules and smart meters. The R5F101LCABG#W0 shares the same footprint as other RL78/G13 VFBGA-64 variants, enabling design reuse.

What is the operating temperature range specified for the R5F101LCABG#W0?

The R5F101LCABG#W0 is rated for an operating ambient temperature range of –40°C to +105°C, designated as "G grade" per Renesas' ordering nomenclature. This qualifies it for industrial applications exposed to elevated thermal stress, such as motor drives, power supplies, and outdoor metering equipment. Unlike "A" (–40°C to +85°C) or "D" (–40°C to +85°C, industrial) variants, the G-grade R5F101LCABG#W0 undergoes extended characterization to ensure reliable operation at the upper limit without derating.

Which serial communication interfaces are integrated into the R5F101LCABG#W0?

The R5F101LCABG#W0 integrates three hardware serial interface types: CSI (Renesas' SPI-compatible interface, up to 8 channels), I²C/Simplified I²C (up to 10 channels), and UART/LIN (up to 4 channels, with LIN physical layer support). These are mapped to dedicated pins and operate independently of the CPU core via peripheral control registers. The R5F101LCABG#W0 supports simultaneous use of multiple interfaces - for example, UART for host communication, I²C for sensor reading, and CSI for display or memory expansion - without software bit-banging overhead.