Renesas R5F101FCDFP#30

Overview

R5F101FCDFP#30 from Renesas is a 44-pin LQFP-packaged RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, and 4 KB RAM, operating from 1.6–5.5 V at up to 32 MHz (41 DMIPS), optimized for ultra-low-power industrial control applications including sensor nodes and battery-powered HMI.

For engineers reviewing the R5F101FCDFP#30 datasheet, R5F101FCDFP#30 pinout, R5F101FCDFP#30 application, or R5F101FCDFP#30 equivalent, key selection criteria include its 0.57 μA RTC+LVD stop-mode current, integrated 10-bit 26-channel ADC, dual UART/LIN support, and 16-bit timer complement - all in a compact 10 × 10 mm LQFP-44 package rated for -40°C to +85°C industrial operation.

Technical Context

The R5F101FCDFP#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 ultra-low-speed mode). It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer driven by a dedicated low-speed on-chip oscillator.

Its peripheral set includes up to 4 UART/LIN channels, 3–10 I²C/Simplified I²C interfaces, 2–8 CSI (SPI-compatible) channels, 8–16 16-bit timers, and DMA controller with 2/4 channels enabling zero-wait-state transfers between SFR and RAM in just two clocks per 8/16-bit word.

Key Specifications

Pinout & Package

Package: 44-pin plastic LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100FCDFP#30, the R5F101FCDFP#30 trades data flash capacity for lower cost and identical industrial temperature support, while R5F101FCDFA#30 provides scalable I/O headroom at the expense of PCB area - making the R5F101FCDFP#30 optimal for cost-sensitive, space-constrained industrial controllers requiring precise low-power timing and analog integration.

Availability

R5F101FCDFP#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, programmable logic relays, and energy monitoring modules requiring stable component supply across multi-year production cycles.

Supply support for R5F101FCDFP#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 product line delivers true low-power 16-bit MCUs targeting cost-sensitive industrial and consumer equipment requiring robust analog integration, deterministic real-time performance, and long-life battery operation.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F101FCDFP#30?

The R5F101FCDFP#30 operates at up to 32 MHz with a measured performance of 41 DMIPS. This rating is achieved using the high-speed on-chip oscillator, which maintains ±1.0% accuracy across 1.8–5.5 V supply and -20°C to +85°C ambient conditions - enabling deterministic real-time control without external crystal dependency.

Does the R5F101FCDFP#30 support hardware LIN bus communication?

Yes, the R5F101FCDFP#30 supports hardware LIN bus communication through its UART peripheral, which includes built-in sync-break detection, checksum generation, and identifier filtering compliant with ISO 9141-2 and SAE J2602 standards - eliminating software overhead and ensuring timing-critical frame transmission.

What are the low-power modes supported by the R5F101FCDFP#30, and what is the lowest achievable current draw?

The R5F101FCDFP#30 supports HALT, STOP, and SNOOZE modes. Its lowest operational current is 0.57 μA in STOP mode with only the real-time clock and low-voltage detector active - verified at VDD = 3.0 V and TA = 25°C - making it suitable for decade-long battery operation in metering and sensor applications.

Can the R5F101FCDFP#30 perform background data flash rewriting while executing application code?

Yes, the R5F101FCDFP#30 supports background operation (BGO) for data flash rewriting. During BGO, the CPU executes instructions from code flash memory while the flash control unit rewrites the 4 KB data flash - enabling seamless firmware parameter updates or logging without interrupting real-time tasks.

Is the R5F101FCDFP#30 pin-compatible with other RL78/G13 variants in the same LQFP-44 package?

Yes, the R5F101FCDFP#30 shares identical pinout and electrical characteristics with all RL78/G13 devices in the PLQP0044GC-A package (e.g., R5F100FCDFP#30, R5F101FCDFA#30 is not pin-compatible due to different pin count). This allows drop-in replacement within the same memory/peripheral configuration family for design flexibility and BOM optimization.