Renesas R5F5634ECDFB#30

Overview

R5F5634ECDFB#30 from Renesas is a 32-bit RX634 Group microcontroller with 54 MHz CPU, 2 Mbyte flash, 128 Kbyte SRAM, and integrated 12-bit ADC (1 μs conversion), 10-bit DAC (2 channels), CEC transceiver, and dual remote control receivers - deployed in industrial HMI panels requiring real-time motor control, safety-critical IEC60730 compliance, and IR/CEC-based appliance interoperability.

For engineers reviewing the R5F5634ECDFB#30 datasheet, R5F5634ECDFB#30 pinout, R5F5634ECDFB#30 application, or R5F5634ECDFB#30 equivalent, key selection criteria include 3-V supply operation (2.7–3.6 V), PLQP0144KA-A 144-pin LQFP package, 114 GPIOs with MPC flexibility, ELC-driven low-power peripheral coordination, and hardware-accelerated CRC/DOC for functional safety diagnostics.

Technical Context

The R5F5634ECDFB#30 implements a CISC Harvard-architecture RX CPU core with 5-stage pipeline, supporting 90 DMIPS at 54 MHz, IEEE 754-compliant single-precision FPU, and memory protection unit (MPU) for secure embedded execution. It integrates dual timer subsystems - six-channel MTU2a and six-channel TPUa - enabling synchronized PWM generation, phase counting, and A/D trigger synchronization.

Its peripheral architecture features event-driven operation via ELC (56 event sources), eliminating interrupt latency for time-critical tasks; on-chip 32 Kbyte data flash with 100,000 write cycles supports background programming; and dedicated IWDT with 125-kHz LOCO ensures fail-safe watchdog independence from system clock integrity.

Key Specifications

Pinout & Package

Package: PLQP0144KA-A - 144-pin LQFP, 20 mm × 20 mm body, 0.5 mm pitch, exposed pad, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5634ECDFB#30, R5F5634EYDFB#30 requires full voltage-domain redesign, while R5F5634DCDFB#30 offers drop-in replacement with reduced flash - both retain identical ELC, MPC, CEC, and RCR functionality for seamless peripheral integration.

Availability

R5F5634ECDFB#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance controllers, CEC-enabled AV hubs, and factory automation nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F5634ECDFB#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, and power solutions for automotive, industrial, and IoT markets.

The RX634 Group - including R5F5634ECDFB#30 - was designed for high-integrity industrial applications demanding real-time performance, functional safety (IEC60730), and rich analog/motor control peripherals in a single-chip solution.

FAQ

What is the operating voltage range for the R5F5634ECDFB#30?

The R5F5634ECDFB#30 operates from a single 2.7 V to 3.6 V supply, as confirmed in Table 1.1 and Table 1.3 of the R01DS0255EJ0100 datasheet. This 3-V package variant is incompatible with 5-V operation - using R5F5634EYDFB#30 is required for 4.0–5.5 V systems. The AVCC0, VREFH0, and VREFL0 pins must be tied accordingly within this range.

Does the R5F5634ECDFB#30 support hardware CEC functionality?

Yes, the R5F5634ECDFB#30 includes a dedicated CEC transmission/reception circuit compliant with CEC standard 1.4, accessible via the CECIO pin. As specified in Table 1.2 and Section 1.4, this feature is enabled only in 3-V packages like R5F5634ECDFB#30 - it is explicitly omitted in 5-V variants such as R5F5634EYDFB#30.

How many analog input channels does the R5F5634ECDFB#30 ADC support?

The R5F5634ECDFB#30 integrates the S12ADb 12-bit A/D converter with 16 analog input channels (AN000 to AN015), as documented in Table 1.1 and Section 1.4. It supports three-channel synchronized sampling, sample-and-hold for three channels, and self-diagnostic functions - all operational within the 2.7–3.6 V supply range.

What package type and pin count does the R5F5634ECDFB#30 use?

The R5F5634ECDFB#30 uses the PLQP0144KA-A package: a 144-pin LQFP with 20 mm × 20 mm body size and 0.5 mm pitch, as stated on page 1 and Table 1.3 of the R01DS0255EJ0100 datasheet. This package provides 114 general-purpose I/O pins, with MPC-enabled function remapping across multiple port groups.

Is the R5F5634ECDFB#30 qualified for IEC60730 functional safety compliance?

Yes, the R5F5634ECDFB#30 includes multiple hardware features targeting IEC60730 Class B compliance: oscillation-stop detection, clock accuracy measurement circuit (CAC), CRC calculator, independent watchdog timer (IWDT) with dedicated oscillator, and A/D converter self-diagnostic function - all explicitly listed in the "Useful functions for IEC60730 compliance" section of the datasheet.