Renesas R5F56316CDBG#G0

Overview

R5F56316CDBG#G0 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 Mbyte on-chip flash, 128 Kbyte SRAM, and 32 Kbyte data flash. It operates from a 2.7–3.6 V supply, supports -40 to +105°C (G version), and targets industrial networking and embedded control systems requiring real-time connectivity and cryptographic acceleration.

For engineers reviewing the R5F56316CDBG#G0 datasheet, R5F56316CDBG#G0 pinout, R5F56316CDBG#G0 application, or R5F56316CDBG#G0 equivalent, key selection criteria include Ethernet MAC support (MII/RMII), AES-128/192/256 DEU, 12-bit A/D converter with 21 channels, USB 2.0 host/function/OTG, and CAN v2.0B with 32 mailboxes per channel - all in a 176-pin LFBGA (PLBG0176GA-A) package.

Technical Context

The R5F56316CDBG#G0 implements the RX CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates dedicated hardware accelerators including a Data Encryption Unit (DEU) for AES-ECB/CBC modes and a CRC calculator supporting three polynomials (X⁸+X²+X+1, X¹⁶+X¹⁵+X²+1, X¹⁶+X¹²+X⁵+1).

Its timing subsystem includes independent watchdog timer (IWDT) driven by a dedicated 125-kHz on-chip oscillator, real-time clock (RTC) with battery backup and time-capture capability, and multiple timer units (MTU2, TPU, TMR, CMT) supporting PWM generation, input capture, phase counting, and A/D trigger synchronization - all configurable via programmable clock dividers and digital filters.

Key Specifications

Pinout & Package

Package: 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA), PLBG0176GA-A, 13 × 13 mm, 0.8-mm ball pitch, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56316CDBG#G0, R5F56318CDBG#G0 offers greater firmware headroom while maintaining full pin and peripheral compatibility, whereas R5F56306CDFP#30 sacrifices Ethernet and temperature grade for lower cost and smaller footprint - making it suitable only for non-networked, commercial-grade applications.

Availability

R5F56316CDBG#G0 is available at Aetrix Electronics and suitable for industrial gateways, secure edge controllers, HMI terminals, and energy management systems requiring stable component supply, long-term lifecycle support, and automotive-grade reliability under extended temperature conditions.

Supply support for R5F56316CDBG#G0 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 industrial, automotive, and enterprise applications.

The RX63N Group, including R5F56316CDBG#G0, was designed for high-performance, network-connected embedded systems demanding real-time determinism, hardware security, and multi-protocol interoperability in harsh environments.

FAQ

What is the maximum operating frequency and core architecture of the R5F56316CDBG#G0?

The R5F56316CDBG#G0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit. The core supports memory protection (MPU), JTAG/FINE debugging, and ultra-compact code density - all confirmed in Renesas document R01DS0098EJ0180.

Does the R5F56316CDBG#G0 include an Ethernet controller, and what interfaces does it support?

Yes, the R5F56316CDBG#G0 includes a fully integrated Ethernet MAC compliant with IEEE 802.3, supporting 10/100 Mbps in full- and half-duplex modes. It supports both MII and RMII physical layer interfaces, Magic Packet™ wake-on-LAN, and IEEE 802.3x flow control. The dedicated EDMAC hardware accelerator handles descriptor-based frame transfers with 2 KB TX/RX FIFOs - features explicitly assigned to the RX63N Group in the datasheet.

What are the memory resources available on the R5F56316CDBG#G0?

The R5F56316CDBG#G0 integrates 1.5 Mbyte of on-chip flash memory (no wait states at 100 MHz), 128 Kbyte of SRAM, and 32 Kbyte of reprogrammable data flash rated for 100,000 erase/write cycles. Flash supports on-board programming via multiple methods, and SRAM provides backup capability during deep software standby. These values are specified in Table 1.1 and confirmed for the "CDBG" package variant in Table 1.3 of R01DS0098EJ0180.

Which security and cryptographic functions are implemented in hardware on the R5F56316CDBG#G0?

The R5F56316CDBG#G0 includes a dedicated Data Encryption Unit (DEU) supporting AES-128, AES-192, and AES-256 encryption/decryption in ECB and CBC modes. It also integrates a CRC calculator with three selectable polynomials (X⁸+X²+X+1, X¹⁶+X¹⁵+X²+1, X¹⁶+X¹²+X⁵+1) and a unique 16-byte device ID (G version only). These features are documented in Sections 1.1 and Table 1.1 of R01DS0098EJ0180.

What is the package type and pin count of the R5F56316CDBG#G0, and what I/O capabilities does it offer?

The R5F56316CDBG#G0 uses a 176-pin LFBGA package (PLBG0176GA-A), measuring 13 × 13 mm with 0.8-mm ball pitch. It provides 133 general-purpose I/O pins, of which 18 are 5-V tolerant, all supporting pull-up resistors and open-drain outputs. The package supports module stop functions and low-power modes - details verified in Table 1.2 and "Package" section of R01DS0098EJ0180.