Renesas R5F5110JADFM#30

Overview

R5F5110JADFM#30 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 16 KB on-chip flash, 8 KB SRAM, 12-bit A/D converter with 14 channels, RTC, and dual SCI + I²C + RSPI interfaces. It targets low-power industrial sensing and control nodes requiring deterministic real-time response and IEC 60730 compliance.

For engineers reviewing the R5F5110JADFM#30 datasheet, R5F5110JADFM#30 pinout, R5F5110JADFM#30 application, or R5F5110JADFM#30 equivalent, key selection criteria include its −40 to +85°C temperature grade, 64-pin LFQFP (PLQP0064KB-A) package, software standby current of 0.35 μA, and integrated clock accuracy measurement circuit for functional safety validation.

Technical Context

The R5F5110JADFM#30 implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle 32×32-bit multiply operations. Its on-chip debugging uses FINE interface compatible with E1 emulator.

It integrates a 32-bit RX CPU core with 64-bit accumulator, independent watchdog timer driven by dedicated 15 kHz oscillator, and clock generation supporting main (1–20 MHz), sub (32.768 kHz), and high-speed on-chip (32 MHz ±1%) oscillators. The system clock (ICLK), peripheral clock (PCLK), and FlashIF clock (FCLK) are independently configurable.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (PLQP0064KB-A), 10 × 10 mm body, 0.5 mm pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit MCU applications.

Compared with R5F5110JADFM#30, R5F51103ADFM#30 provides 4× more flash for firmware scalability while retaining identical low-power and timing features, whereas R5F5110JAGFM#30 delivers identical functionality at elevated temperature - making the D-grade optimal for cost-sensitive commercial-grade designs.

Availability

R5F5110JADFM#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, and home appliance control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F5110JADFM#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.

The RX110 Group, including R5F5110JADFM#30, is designed for cost-sensitive, low-power embedded applications demanding real-time performance, functional safety support, and rich peripheral integration in compact packages.

FAQ

What is the maximum operating frequency and corresponding supply voltage requirement for the R5F5110JADFM#30?

The R5F5110JADFM#30 operates at a maximum frequency of 32 MHz, but this is only guaranteed when the VCC supply is between 2.7 V and 3.6 V. At 1.8–2.4 V, maximum frequency drops to 8 MHz; at 2.4–2.7 V, it is limited to 16 MHz. These voltage-frequency dependencies are enforced by internal regulators and must be observed in system design to ensure timing compliance.

Does the R5F5110JADFM#30 support IEC 60730 Class B compliance out of the box?

Yes, the R5F5110JADFM#30 includes hardware features required for IEC 60730 Class B: clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated oscillator, RAM test assist functions, and voltage monitoring circuits. However, full certification requires proper implementation of software self-tests per Annex H - the hardware enables but does not automatically satisfy compliance.

How many serial communication interfaces does the R5F5110JADFM#30 provide, and what protocols do they support?

The R5F5110JADFM#30 provides three serial interfaces: two SCI modules (SCI1 and SCI5) and one SCIf module (SCI12), plus one I²C bus interface (RIIC) and one RSPI interface. SCI/SCIf support asynchronous, clock-synchronous, simple I²C, and simple SPI modes; RIIC supports standard and fast-mode I²C/SMBus; RSPI supports master-only SPI up to 16 Mbps with 8–32 bit frame lengths.

What is the purpose of the CACREF pin on the R5F5110JADFM#30, and how is it used?

The CACREF pin on the R5F5110JADFM#30 serves as the reference input for the Clock Accuracy Measurement Circuit (CAC). It accepts an external precision clock signal (e.g., from a TCXO) against which the internal high-speed oscillator (32 MHz) is compared. This enables real-time drift monitoring essential for functional safety applications requiring clock integrity verification per IEC 60730.

Can the R5F5110JADFM#30's A/D converter perform simultaneous sampling across multiple channels?

No, the R5F5110JADFM#30's 12-bit A/D converter does not support true simultaneous sampling. It performs sequential conversions with minimum 1.0 µs per channel at 32 MHz ADCLK. However, it offers double-trigger mode to duplicate conversion results - useful for noise rejection in motor control - and supports scan modes (single, continuous, group) with software or timer-triggered start.