Renesas R5F101BGDNA#U0

Overview

R5F101BGDNA#U0 from Renesas is a 32-bit RL78/G13 microcontroller with 96 KB flash, 8 KB RAM, and no data flash memory, designed for ultra-low-power embedded control in industrial temperature-grade (-40°C to +105°C) applications. It operates from 1.6 V to 5.5 V, delivers 41 DMIPS at 32 MHz, and integrates 16-bit timers, 10-bit ADC (26 channels), UART/I²C/CSI interfaces, RTC, and hardware multiplier/divider.

For engineers reviewing the R5F101BGDNA#U0 datasheet, R5F101BGDNA#U0 pinout, R5F101BGDNA#U0 application, or R5F101BGDNA#U0 equivalent, key selection criteria include its VFBGA-64 package (0.4 mm pitch), absence of on-chip data flash, industrial-grade thermal rating (G suffix), and support for SNOOZE mode and background data flash programming in compatible variants.

Technical Context

The R5F101BGDNA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory map spans 1 MB address space, with general-purpose register banks enabling efficient context switching in interrupt-driven real-time control.

Power management includes HALT, STOP, and SNOOZE modes; the device achieves 66 μA/MHz active current and 0.57 μA in RTC+LVD-only operation. Peripheral integration features DMA (4 channels), 16-bit timer array (16 channels), real-time clock with calendar/alarm, and 10-bit A/D converter with internal reference voltage (1.45 V) and temperature sensor.

Key Specifications

Pinout & Package

VFBGA-64 package (4 mm × 4 mm, 0.4 mm pitch, ball layout per Renesas PVBG0064LA-A); RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F101BGDNA#U0, R5F101BGNA#U0 adds data flash capability without changing footprint or thermal spec, while R5F100BGDNA#U0 trades industrial temperature range for data flash - making each alternative optimal only when those specific features outweigh the trade-offs.

Availability

R5F101BGDNA#U0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, factory automation I/O modules, energy monitoring units, and HVAC system controllers requiring stable component supply across long production lifecycles.

Supply support for R5F101BGDNA#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.

The RL78/G13 family targets cost-sensitive, ultra-low-power embedded control applications - balancing performance, integration, and energy efficiency for industrial and consumer equipment.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F101BGDNA#U0?

The R5F101BGDNA#U0 operates up to 32 MHz and delivers 41 DMIPS (Dhrystone MIPS) at that frequency. This performance level supports real-time tasks such as motor control algorithms, protocol stack processing, and sensor fusion without external acceleration. The RL78 core's 3-stage pipeline ensures deterministic timing critical for industrial control loops.

Does the R5F101BGDNA#U0 include on-chip data flash memory?

No, the R5F101BGDNA#U0 does not include on-chip data flash memory - the "D" in the part number explicitly denotes "data flash not provided." This distinguishes it from variants like R5F101BGNA#U0, which includes 4 KB of data flash. Code flash remains at 96 KB and supports self-programming with boot swap functionality.

What package type and pin count does the R5F101BGDNA#U0 use?

The R5F101BGDNA#U0 uses a VFBGA-64 package (4 mm × 4 mm, 0.4 mm ball pitch), identified by the "BG" suffix and "#U0" tray packaging code. It has 64 I/O balls, including dedicated analog inputs (e.g., P20/ANI0, P21/ANI1, P147/ANI18), serial interface pins, and power/ground connections conforming to Renesas PVBG0064LA-A mechanical specification.

What is the operating temperature range specified for the R5F101BGDNA#U0?

The R5F101BGDNA#U0 is rated for industrial operation from -40°C to +105°C, indicated by the "G" suffix in the part number. This extended temperature grade qualifies it for deployment in demanding environments such as motor drives, factory floor controllers, and outdoor energy monitoring equipment where ambient temperatures exceed standard commercial limits.

Which low-power modes are supported by the R5F101BGDNA#U0, and what are their typical current draws?

The R5F101BGDNA#U0 supports HALT mode (0.23 μA), STOP mode (0.42 μA), and SNOOZE mode (1.2 μA), all with RTC and LVD active. In STOP mode with only RTC and LVD enabled, current consumption drops to 0.57 μA - enabling decade-long battery life in periodic wake-up applications. These modes are controlled via dedicated system registers and require no external components.