Renesas R5F56106WDBG#G0

Overview

R5F56106WDBG#G0 from Renesas is a 32-bit RX610 Group microcontroller featuring a 100 MHz RX CPU core with single-cycle instruction execution, integrated 1 MB flash memory, 128 KB RAM, 32 KB data flash, 10-bit A/D and D/A converters, and dual I²C interfaces. It supports industrial automation control systems requiring deterministic real-time response and mixed-signal processing.

For engineers reviewing the R5F56106WDBG#G0 datasheet, R5F56106WDBG#G0 pinout, R5F56106WDBG#G0 application, or R5F56106WDBG#G0 equivalent, key selection criteria include its 176-pin LFBGA package, 100 MHz max operating frequency, 10-bit analog conversion capability, external bus interface for memory expansion, and support for deep software standby power-down mode.

Technical Context

The R5F56106WDBG#G0 implements the RXv1 CPU architecture with IEEE 754-compliant single-precision FPU, 32×32→64-bit multiplier, and 32/32→32-bit divider. Its interrupt controller supports 116 peripheral interrupts and 16 external IRQ pins with eight priority levels.

It integrates seven SCI channels (asynchronous/clock-synchronous/smart card), two RIIC modules (up to 1 Mbps), four independent 10-bit A/D units (1.0 µs conversion at 50 MHz PCLK), and two 10-bit D/A channels. Clock generation includes PLL with independent system (ICLK), peripheral (PCLK), and external bus (BCLK) domains.

Key Specifications

Pinout & Package

176-pin LFBGA (PLBG0176GA-A) package with 0.8 mm pitch, 12 × 12 mm body size, and exposed thermal pad. Pin functions include dedicated A/D input channels (AN0–AN15), D/A outputs (DA0, DA1), external bus signals (CS0#–CS7#, BCLK, WAIT#), and on-chip emulator interface (TCK, TDI, TDO, TRST#).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56106WNBG, R5F56106WDBG#G0 adds −40°C low-temperature operation for harsh environments; compared with R5F56107WDBG, it reduces flash cost while maintaining identical peripheral set, power management, and real-time performance for fixed-function embedded control.

Availability

R5F56106WDBG#G0 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, office equipment motor controllers, building automation gateways, and portable test equipment requiring stable component supply and long-term lifecycle support.

Supply support for R5F56106WDBG#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 manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.

The RX610 Group targets cost-sensitive industrial and office automation applications requiring high CPU performance, integrated analog peripherals, and external memory expansion-without sacrificing real-time determinism or low-power operation.

FAQ

What is the maximum operating frequency of the R5F56106WDBG#G0?

The R5F56106WDBG#G0 operates at a maximum system clock frequency of 100 MHz. This is achieved via its on-chip PLL circuit, which accepts an external crystal (XTAL/EXTAL) and generates ICLK for the CPU and DMAC, PCLK for peripherals, and BCLK for external bus operations-all independently configurable within specified ranges (ICLK: 8–100 MHz, PCLK: 8–50 MHz, BCLK: 8–25 MHz). The 100 MHz rating is validated under the wide-temperature specification (−40 to +85°C).

Does the R5F56106WDBG#G0 support external memory expansion?

Yes, the R5F56106WDBG#G0 supports external memory expansion through its integrated external bus interface (EBI). It provides eight chip-select signals (CS0#–CS7#), each configurable for 16 Mbyte address spaces, with independent 8-bit or 16-bit data bus width selection per area. Signals include BCLK, RD#, WR#, WAIT#, and address/data multiplexing capability. This allows direct connection to SRAM, NOR flash, or FPGA peripherals without external glue logic.

How many A/D and D/A converter channels does the R5F56106WDBG#G0 include?

The R5F56106WDBG#G0 integrates four independent 10-bit A/D converter units (totaling 16 input channels: AN0–AN15) and two 10-bit D/A converter channels (DA0, DA1). Each A/D unit supports single-scan, continuous-scan, and hardware-triggered conversion modes with sample-and-hold functionality. D/A outputs deliver rail-to-rail voltage (0 V to VREFH) and support simultaneous update for synchronized analog signal generation.

What power management features are available on the R5F56106WDBG#G0?

The R5F56106WDBG#G0 offers four distinct power-down modes: Sleep mode (CPU clock stopped, peripherals active), all-module clock stop mode (all clocks halted except oscillation circuit), software standby mode (PLL stopped, selected modules retain state), and deep software standby mode (minimal current draw with RAM retention and wake-up via IRQ/NMI/RTC). These modes are controlled via the System Control Unit (SCU) and support rapid wake-up with deterministic latency.

Is the R5F56106WDBG#G0 pin-compatible with other RX610 Group members in the same package?

Yes, the R5F56106WDBG#G0 is pin-compatible with all other RX610 Group devices in the 176-pin LFBGA (PLBG0176GA-A) package, including R5F56107WDBG, R5F56108WDBG, and R5F56104WDBG. Pin assignments-including power, clock, I/O, analog, and emulator signals-are identical across this package variant. Firmware and PCB layout can be reused across these variants, differing only in flash capacity (768 KB to 2 MB) and temperature grade.