Renesas R5F56108WNBG#U0

Overview

R5F56108WNBG#U0 from Renesas is a 32-bit RX610 Group MCU with 100 MHz CPU, 2 Mbytes flash, 128 Kbytes RAM, and 32 Kbytes data flash, featuring single-precision FPU, 7-channel SCI, dual I²C, 4×10-bit ADC units, and 2×10-bit DAC channels - deployed in office automation and industrial control systems requiring deterministic real-time response.

For engineers reviewing the R5F56108WNBG#U0 datasheet, R5F56108WNBG#U0 pinout, R5F56108WNBG#U0 application, or R5F56108WNBG#U0 equivalent, this page delivers verified package mapping (176-pin LFBGA), validated peripheral register-level functions, confirmed interrupt vector count (116), and precise clock domain partitioning (ICLK/PCLK/BCLK).

Technical Context

The R5F56108WNBG#U0 implements the RX CPU core with one-instruction-per-cycle execution, IEEE 754-compliant single-precision FPU, and 32×32→64-bit multiplier/divider. Its memory subsystem includes on-chip flash with three programming modes (SCI boot/user program/user boot) and 128 Kbytes of SRAM accessible at full 100 MHz ICLK.

Peripheral timing is segmented across independent clocks: ICLK (8–100 MHz) for CPU/DMAC/DTC/RAM/ROM; PCLK (8–50 MHz) for timers, ADC, DAC, and communication interfaces; BCLK (8–25 MHz) for external bus operations. The 117 GPIO pins include 16 open-drain outputs, 40 pull-up resistors, and 10 5-V-tolerant inputs.

Key Specifications

Pinout & Package

Package: 176-pin LFBGA (PLBG0176GA-A), 10 mm × 10 mm, 0.8 mm pitch, bottom-side thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56108WNBG#U0, the R5F56108VNFP offers easier assembly at the expense of I/O count and package density, while the R5F56107WNBG retains identical form factor and temperature range but trades 512 Kbytes of flash for lower unit cost - both require no schematic changes but distinct layout adaptations.

Availability

R5F56108WNBG#U0 is available at Aetrix Electronics and suitable for office automation equipment, digital industrial controllers, and embedded human-machine interfaces requiring stable component supply, long-term manufacturing continuity, and Renesas-qualified wide-temperature operation.

Supply support for R5F56108WNBG#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 enterprise applications.

The RX610 Group targets high-performance embedded control applications demanding real-time determinism, integrated analog peripherals, and scalable memory - designed specifically for office equipment and industrial automation where code efficiency and peripheral integration reduce system complexity.

FAQ

What is the maximum operating frequency and core architecture of the R5F56108WNBG#U0?

The R5F56108WNBG#U0 operates at a maximum frequency of 100 MHz using the proprietary 32-bit RX CPU core. It achieves one instruction per clock cycle, includes a single-precision IEEE 754 floating-point unit, and supports 73 base instructions plus 8 floating-point and 9 DSP-specific operations - all confirmed in the official R01DS0097EJ0120 datasheet.

Does the R5F56108WNBG#U0 support external memory expansion, and what are the bus configuration options?

Yes, the R5F56108WNBG#U0 supports external memory via an 8-area configurable bus interface (CS0–CS7), each supporting up to 16 Mbytes. Each area allows independent 8-bit or 16-bit data bus width selection and per-area endian configuration for data - fully documented in Section 1.1.2 and Table 1.1 of the R5F56108WNBG#U0 datasheet.

How many analog-to-digital converter channels does the R5F56108WNBG#U0 provide, and what is their resolution and speed?

The R5F56108WNBG#U0 integrates four independent 10-bit ADC units, totaling 16 analog input channels. Each unit achieves 1.0 µs conversion time when operating at 50 MHz PCLK, with support for single, scan, and continuous scan modes - specifications verified in Table 1.1 and Section 1.1.2 of the R01DS0097EJ0120 datasheet.

What communication interfaces are integrated into the R5F56108WNBG#U0, and do they support standard protocols?

The R5F56108WNBG#U0 includes seven Serial Communication Interface (SCI) channels supporting asynchronous, clock-synchronous, and smart card modes; two I²C bus interfaces (RIIC) compliant with I²C and SMBus standards up to 1 Mbps; and a CRC calculator with selectable polynomials - all explicitly listed in the "Communication function" section of the R01DS0097EJ0120 datasheet.

What power management features does the R5F56108WNBG#U0 offer for low-power industrial applications?

The R5F56108WNBG#U0 provides four dedicated power-down modes: Sleep, all-module clock stop, software standby, and deep software standby - plus individual module stop control for peripherals. These features enable dynamic power scaling while maintaining real-time responsiveness, as detailed in Section 1.1.2 ("Power down") of the R01DS0097EJ0120 datasheet.