Renesas R5F101LJAFB#30

Overview

R5F101LJAFB#30 from Renesas is a 64-pin LFQFP, 0.5-mm pitch, 192 KB flash, 8 KB data flash, 16 KB RAM RL78/G13 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode), used in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F101LJAFB#30 datasheet, R5F101LJAFB#30 pinout, R5F101LJAFB#30 application, or R5F101LJAFB#30 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm package, 192 KB code flash with self-programming, integrated 10-bit 26-channel ADC, real-time clock with calendar, and support for UART/LIN, I²C, and CSI serial interfaces in industrial temperature grade (-40°C to +85°C).

Technical Context

The R5F101LJAFB#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock), and features on-chip power-on-reset, 14-level voltage detector, and HALT/STOP/SNOOZE low-power modes.

It integrates a DMA controller (4 channels), 16×16-bit multiplier and 32÷32-bit divider, background operation for data flash rewriting, and peripheral functions including up to 16× 16-bit timers, 12-bit interval timer, watchdog timer, and simplified SPI (CSI), UART/LIN, and I²C interfaces - all optimized for deterministic real-time control in resource-constrained embedded systems.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP, 10 mm × 10 mm, 0.5 mm pitch, exposed pad (PLQP0064KF-A). Pin count and footprint match JEDEC MS-026AC standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F101LJAFB#50 and R5F101LKAFB#30, the R5F101LJAFB#30 provides the most cost-effective 64-pin LFQFP solution for industrial control applications requiring exactly 192 KB flash and 16 KB RAM - avoiding over-provisioned memory or unnecessary packaging complexity.

Availability

R5F101LJAFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, wireless sensor nodes, and PLC I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R5F101LJAFB#30 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 family is designed for ultra-low-power general-purpose embedded control - balancing performance, energy efficiency, and integration for cost-sensitive industrial and consumer applications.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the R5F101LJAFB#30?

The R5F101LJAFB#30 operates at a maximum frequency of 32 MHz and delivers 41 DMIPS (Dhrystone MIPS) under benchmark conditions. This performance level is achieved using the RL78 CPU core's 3-stage pipeline and high-speed on-chip oscillator, enabling deterministic real-time response in control applications such as motor drives and sensor fusion. The R5F101LJAFB#30 maintains this throughput across its full 1.6–5.5 V supply range.

Does the R5F101LJAFB#30 include data flash memory, and what are its endurance and voltage specifications?

Yes, the R5F101LJAFB#30 includes 8 KB of on-chip data flash memory. It supports 1,000,000 write/erase cycles (typical) and operates with programming voltage ranging from 1.8 V to 5.5 V. Background operation (BGO) allows CPU execution from program memory while rewriting data flash - essential for logging, calibration storage, and field firmware updates without halting system operation. The R5F101LJAFB#30 uses flash library RAM starting at address FAF00H.

What low-power modes are supported by the R5F101LJAFB#30, and what is its lowest current consumption state?

The R5F101LJAFB#30 supports HALT, STOP, and SNOOZE low-power modes. Its lowest active current consumption is 66 μA per MHz in normal operation, and it achieves 0.57 μA in STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) enabled - ideal for battery-backed timekeeping and wake-on-event applications. All modes retain RAM content and allow fast wake-up with configurable interrupt sources. The R5F101LJAFB#30 meets these specs across its -40°C to +85°C industrial temperature range.

Which serial communication interfaces are integrated into the R5F101LJAFB#30, and does it support LIN bus protocol?

The R5F101LJAFB#30 integrates simplified SPI (CSI), UART, I²C, and simplified I²C interfaces - with 2–4 UART channels, 3–10 I²C channels, and 2–8 CSI channels depending on variant. Crucially, its UART peripheral includes native LIN bus support (LIN 2.2 compliant), enabling direct connection to LIN transceivers for automotive body electronics and industrial distributed control networks. No external protocol translation is required. The R5F101LJAFB#30 implements this in hardware without firmware overhead.

What is the ADC resolution, channel count, and reference configuration available on the R5F101LJAFB#30?

The R5F101LJAFB#30 features a 10-bit successive-approximation ADC with up to 26 analog input channels. It supports external reference inputs or internal 1.45 V reference voltage (selectable only in HS mode), and includes an integrated temperature sensor. Input voltage range is tied to VDD (1.6–5.5 V), eliminating need for external scaling. The ADC is synchronized with the RL78's peripheral event controller for precise timing-critical sampling. All specifications apply directly to the R5F101LJAFB#30 without derating.