Renesas R5F56316CDLK#U0

Overview

R5F56316CDLK#U0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 1.5 MB on-chip flash memory, and 128 KB SRAM. It operates from a 2.7–3.6 V supply, supports -40 to +85°C industrial temperature range, and targets networked industrial control and gateway applications requiring deterministic real-time processing and wired connectivity.

For engineers reviewing the R5F56316CDLK#U0 datasheet, R5F56316CDLK#U0 pinout, R5F56316CDLK#U0 application, or R5F56316CDLK#U0 equivalent, key selection criteria include Ethernet MAC support (MII/RMII), 100 MHz CPU clock with FPU, 1.5 MB flash/128 KB RAM configuration, 145-pin TFLGA package (PTLG0145KA-A), and full peripheral set including USB 2.0 host/function, CAN, and dual A/D converters.

Technical Context

The R5F56316CDLK#U0 implements the 32-bit RX CPU core with 5-stage CISC Harvard pipeline, variable-length instructions, and hardware FPU compliant with IEEE-754 single-precision standard. It integrates dedicated DMA controllers (DMAC, EXDMAC, DTC) and an Ethernet MAC with MII/RMII interface, enabling concurrent high-throughput data movement without CPU intervention.

Its clock system combines external crystal oscillator (4–16 MHz), internal PLL, and multiple on-chip oscillators (HOCO, LOCO), with independent frequency division for ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (up to 50 MHz), and BCLK (up to 50 MHz). The MCU includes MPU, JTAG/FINE debug interfaces, and IEC60730 safety features such as CRC, oscillation-stop detection, and A/D self-diagnostic.

Key Specifications

Pinout & Package

Package: 145-pin TFLGA (PTLG0145KA-A), 7 × 7 mm body, 0.5 mm pitch, 0.8 mm height, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56316CDLK#U0, R5F563NEDDLK#U0 offers 512 KB additional flash for larger firmware or OTA update partitions, while R5F56316CDFB#U0 trades the compact TFLGA for easier assembly and test at the cost of 1 mm² larger footprint and reduced I/O count (111 vs. 111 I/O pins, but different pin mapping).

Availability

R5F56316CDLK#U0 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and building control systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability for ISO 9001-certified manufacturing.

Supply support for R5F56316CDLK#U0 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, with over 40 years of embedded systems expertise.

The RX63N Group, which includes R5F56316CDLK#U0, was designed for industrial networking applications demanding integrated Ethernet, real-time determinism, functional safety compliance (IEC60730), and robust operation across -40 to +85°C.

FAQ

What is the maximum operating frequency and core performance of the R5F56316CDLK#U0?

The R5F56316CDLK#U0 operates at a maximum system clock frequency of 100 MHz and delivers 165 DMIPS of processing performance using its 32-bit RX CPU core. Its hardware single-precision IEEE-754 floating-point unit enables efficient execution of math-intensive algorithms without software emulation overhead, making R5F56316CDLK#U0 suitable for real-time control and signal processing tasks.

Does the R5F56316CDLK#U0 support Ethernet connectivity, and what physical layer options are available?

Yes, the R5F56316CDLK#U0 integrates a full IEEE 802.3-compliant Ethernet MAC supporting both 10 Mbps and 100 Mbps operation in full- and half-duplex modes. It supports MII (Media Independent Interface) and RMII (Reduced MII) physical layer configurations, allowing flexible PHY selection and board layout optimization. The dedicated EDMAC controller handles descriptor-based packet transfers to minimize CPU utilization during network traffic.

What memory resources are included in the R5F56316CDLK#U0?

The R5F56316CDLK#U0 includes 1.5 MB of on-chip flash memory with zero-wait-state 100 MHz access, 128 KB of on-chip SRAM with zero-wait-state operation and deep software standby backup capability, and 32 KB of on-chip data flash rated for 100,000 program/erase cycles. These memory resources are sufficient for complex real-time applications with integrated protocol stacks and secure boot functionality in R5F56316CDLK#U0.

Which package type and pin count does the R5F56316CDLK#U0 use?

The R5F56316CDLK#U0 uses a 145-pin TFLGA (Thin Fine-Pitch Land Grid Array) package designated PTLG0145KA-A, measuring 7 × 7 mm with 0.5 mm pitch. This package provides 111 general-purpose I/O pins, 18 of which are 5-V tolerant, and supports high-density PCB layouts while maintaining thermal performance for industrial ambient conditions in R5F56316CDLK#U0 deployments.

What safety and reliability features does the R5F56316CDLK#U0 offer for industrial applications?

The R5F56316CDLK#U0 includes multiple IEC60730 Class B compliance features: hardware CRC calculator, main clock oscillation-stop detection, independent watchdog timer (IWDT) with dedicated LOCO clock, self-diagnostic function for the 10-bit A/D converter, and memory protection unit (MPU). These features enable robust fault detection and recovery in safety-critical industrial control systems using R5F56316CDLK#U0.