Renesas R5F101PLDFA#70

Overview

R5F101PLDFA#70 from Renesas is a 100-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers, 10-bit ADC (16 channels), UART/I²C/CSI interfaces, and operates from 1.6–5.5 V across –40°C to +85°C for embedded control in metering and sensor nodes.

For engineers reviewing the R5F101PLDFA#70 datasheet, R5F101PLDFA#70 pinout, R5F101PLDFA#70 application, or R5F101PLDFA#70 equivalent, key selection criteria include its no-data-flash configuration, LQFP-100 package with 0.65-mm pitch, industrial temperature rating, integrated real-time clock with calendar, and support for background data flash rewriting during program execution.

Technical Context

The R5F101PLDFA#70 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). It features on-chip power-on-reset, 14-level voltage detector, and HALT/STOP/SNOOZE low-power modes optimized for battery-backed applications.

Its peripheral set includes up to 16 channels of 16-bit timer, one 12-bit interval timer, one real-time clock with calendar/alarm/correction, one watchdog timer, and serial interfaces: CSI (SPI-compatible), UART/LIN, and I²C - all configurable via dedicated SFRs and interrupt vectors without external glue logic.

Key Specifications

Pinout & Package

Package: 100-pin plastic LQFP (14 × 20 mm, 0.65-mm pitch), RoHS-compliant, industrial-grade (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F101PLAFA#70, the R5F101PLDFA#70 eliminates data flash to reduce cost and simplify firmware architecture where parameter persistence is handled externally; compared with R5F101PLDFA#V0, the #70 variant offers tape-and-reel delivery optimized for high-throughput SMT lines.

Availability

R5F101PLDFA#70 is available at Aetrix Electronics and suitable for metering systems, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply, long-term lifecycle support, and industrial temperature compliance.

Supply support for R5F101PLDFA#70 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 targeting cost-sensitive, battery-operated, and industrial control applications where energy efficiency, integration, and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the R5F101PLDFA#70?

The R5F101PLDFA#70 supports up to 32 MHz operation using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and –20°C to +85°C. Its minimum instruction time is 0.03125 μs at this frequency, delivering 41 DMIPS performance. The core also supports ultra-low-speed operation down to 32.768 kHz for RTC and low-power sensing tasks.

Does the R5F101PLDFA#70 include data flash memory?

No, the R5F101PLDFA#70 does not include data flash memory. Per Renesas part numbering convention, the "1" in the second digit (R5F101PL…) indicates no data flash, distinguishing it from "0"-series variants like R5F100PL… which integrate 4–8 KB data flash. This simplifies firmware architecture for applications that store parameters externally or in code flash with wear-leveling.

What package type and pin count does the R5F101PLDFA#70 use?

The R5F101PLDFA#70 uses a 100-pin plastic LQFP package with 0.65-mm pitch (14 × 20 mm body), identified by the "FA" suffix in the part number and confirmed in Table 1-1 of the RL78/G13 datasheet. It is rated for industrial temperature range (–40°C to +85°C) and shipped in tape-and-reel format (#70 suffix).

Can the R5F101PLDFA#70 operate from a 1.8 V supply?

Yes, the R5F101PLDFA#70 operates across 1.6 V to 5.5 V, fully supporting 1.8 V nominal supply. At this voltage, it maintains full functionality including 32 MHz operation (with reduced margin), 10-bit ADC conversion, RTC operation, and I/O compatibility with 1.8 V logic families - enabling direct interface with low-voltage sensors and transceivers without level shifters.

How many analog input channels does the R5F101PLDFA#70 support?

The R5F101PLDFA#70 supports 16 analog input channels for its 10-bit ADC, as specified in the RL78/G13 family overview and confirmed by pin mapping for 100-pin variants. These channels include dedicated ANI0–ANI15 pins and support internal reference (1.45 V) and temperature sensor input, enabling standalone environmental monitoring without external signal conditioning.