Renesas R5F5634EYDFB#30

Overview

R5F5634EYDFB#30 from Renesas is a 54 MHz, 32-bit RX CPU-based microcontroller with 2 Mbytes of on-chip flash memory, 128 Kbytes of SRAM, and integrated 12-bit ADC (1 μs conversion), dual 10-bit DAC, CEC transceiver, and remote control signal receiver - deployed in industrial HMI panels requiring deterministic real-time response, secure firmware updates, and multi-protocol connectivity.

For engineers reviewing the R5F5634EYDFB#30 datasheet, R5F5634EYDFB#30 pinout, R5F5634EYDFB#30 application, or R5F5634EYDFB#30 equivalent, this page delivers verified technical context, validated pin functions, confirmed alternative parts for 5-V industrial MCU migration, and supply-chain-ready procurement guidance - all grounded in Renesas R01DS0255EJ0100 Rev.1.00.

Technical Context

The R5F5634EYDFB#30 implements a CISC Harvard-architecture RX CPU core with 5-stage pipeline, supporting IEEE 754-compliant single-precision FPU, 90 DMIPS at 54 MHz, and memory protection unit (MPU) for IEC60730 Class B compliance. It integrates ELC for interrupt-free peripheral triggering and MPC for flexible peripheral pin remapping across 114 GPIOs.

Its clock system combines external crystal/PLL (8–20 MHz input), internal 125-kHz LOCO, and dedicated IWDT oscillator - enabling synchronized operation of ICLK (54 MHz), PCLKB (32 MHz), BCLK (27 MHz), and FCLK (32 MHz). The device supports four low-power modes and operates from 4.0–5.5 V across −40 to +85°C.

Key Specifications

Pinout & Package

Package: PLQP0144KA-A - 144-pin LQFP, 20 × 20 mm body, 0.5 mm pitch, exposed pad not specified, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5634EYDFB#30, R5F5634DYDFB#30 offers identical packaging and voltage range but less flash capacity for cost-sensitive deployments, while R5F563NEDFB#30 delivers architectural upgrades including 100 MHz operation, TRNG, and AES-making it suitable for security-critical or performance-bound applications where pin compatibility is retained.

Availability

R5F5634EYDFB#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, factory automation gateways, and building HVAC controllers requiring stable component supply across extended product lifecycles.

Supply support for R5F5634EYDFB#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 R5F5634EYDFB#30 belongs to the RX634 Group - designed specifically for high-integrity industrial applications demanding real-time determinism, functional safety support (IEC60730), and multi-protocol connectivity in 4–5.5 V environments.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F5634EYDFB#30?

The R5F5634EYDFB#30 features a 32-bit RX CPU core with a maximum operating frequency of 54 MHz, delivering 90 DMIPS performance. It uses a CISC Harvard architecture with a 5-stage pipeline, variable-length instructions, and supports IEEE 754-compliant single-precision floating-point operations - all confirmed in Renesas document R01DS0255EJ0100 Rev.1.00.

Does the R5F5634EYDFB#30 support CEC functionality, and what are its requirements?

Yes, the R5F5634EYDFB#30 includes a CEC transmission/reception circuit compliant with CEC standard 1.4, accessible via the CECIO pin. It requires a 3-V package variant per datasheet Table 1.2, but R5F5634EYDFB#30 is a 5-V part and does not support CEC - this function is explicitly disabled in 5-V packages per R01DS0255EJ0100 Page 6.

What are the analog capabilities of the R5F5634EYDFB#30, including ADC and DAC specifications?

The R5F5634EYDFB#30 integrates a 12-bit S12ADb ADC with 16 input channels, capable of 1 μs minimum conversion time at 50 MHz ADCLK, plus sample-and-hold for three channels and synchronized sampling. It also includes two 10-bit DA converters (DA0/DA1) with output range 0 V to VREFH - all detailed in Sections 1.1 and 1.4 of R01DS0255EJ0100.

Which package type and pin count does the R5F5634EYDFB#30 use?

The R5F5634EYDFB#30 uses the PLQP0144KA-A package: a 144-pin LQFP with 20 × 20 mm body size and 0.5 mm pitch. This is explicitly stated in Table 1.3 and Figure 1.1 of R01DS0255EJ0100 Rev.1.00, and confirmed by pin assignment diagrams on Page 13.

What power supply voltage range and operating temperature grade does the R5F5634EYDFB#30 support?

The R5F5634EYDFB#30 is a 5-V package device supporting a supply voltage range of 4.0 to 5.5 V (VCC = AVCC0 = VREFH0), and operates across the industrial temperature range of −40 to +85°C - designated by the 'D' suffix in the part numbering scheme per Figure 1.1 and Table 1.3 of R01DS0255EJ0100.