Renesas R5F101GDANA#U0

Overview

R5F101GDANA#U0 from Renesas is a 32-bit RL78/G13 microcontroller with no data flash memory, 128 KB code flash, 12 KB RAM, and HWQFN-48 package (7 × 7 mm, 0.5-mm pitch). It operates from 1.6–5.5 V, achieves 41 DMIPS at 32 MHz, and delivers ultra-low power consumption (66 μA/MHz active, 0.57 μA in RTC+LVD mode), targeting battery-powered industrial sensor nodes and smart metering interfaces.

For engineers reviewing the R5F101GDANA#U0 datasheet, R5F101GDANA#U0 pinout, R5F101GDANA#U0 application, or R5F101GDANA#U0 equivalent, key selection criteria include its data-flash-free configuration for firmware-immutable designs, 48-pin HWQFN thermal performance, integrated RTC with calendar/alarm, and support for LIN-bus UART and hardware BGO-capable peripherals in space-constrained embedded control.

Technical Context

The R5F101GDANA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). Its memory map spans 1 MB address space, with on-chip resources including 16-bit timers (up to 16 channels), 10-bit A/D converter (26-channel input), and real-time clock with calendar function.

Power management includes HALT, STOP, and SNOOZE low-power modes, plus on-chip POR and LVD with 14 selectable voltage thresholds. Peripheral integration covers up to 10 I²C/Simplified I²C channels, 8 CSI (SPI-compatible) channels, and 4 UART/LIN channels - all configurable without external components for deterministic timing-critical control loops.

Key Specifications

Pinout & Package

Package: HWQFN-48 (7 × 7 mm, 0.5-mm pitch), wettable flank, RoHS-compliant, thermal pad exposed on bottom for enhanced heat dissipation in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F101GDANA#U0, R5F100GDANA#U0 adds data flash for runtime parameter storage but increases cost and complexity; R5F101GDAFA#V0 trades HWQFN's thermal efficiency for LQFP's assembly flexibility - both require PCB layout changes and differ in thermal management strategy.

Availability

R5F101GDANA#U0 is available at Aetrix Electronics and suitable for smart metering, industrial temperature control, wireless sensor nodes, and appliance motor control requiring stable component supply across extended product lifecycles.

Supply support for R5F101GDANA#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 industrial, automotive, and IoT markets.

The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - designed to replace legacy 8/16-bit MCUs with scalable 32-bit performance and integrated analog/peripheral sets.

FAQ

What is the maximum operating temperature range for the R5F101GDANA#U0?

The R5F101GDANA#U0 is rated for industrial operation from –40°C to +105°C (G-grade), validated across full voltage and frequency ranges. This specification is confirmed in the RL78/G13 datasheet Rev.3.80 Section 1.1 under "Operating ambient temperature", and applies directly to the R5F101GDANA#U0 as a G-field part. The device maintains timing compliance and flash reliability within this range without derating.

Does the R5F101GDANA#U0 include an integrated data flash memory?

No, the R5F101GDANA#U0 does not include data flash memory. Per the RL78/G13 datasheet Rev.3.80 Section 1.2 ("List of Part Numbers"), the "101" prefix explicitly denotes "Data flash is not provided". This distinguishes it from "100"-series variants like R5F100GDANA#U0, which include 8 KB data flash. The R5F101GDANA#U0 relies solely on its 128 KB code flash for program storage.

Which package type and pin count does the R5F101GDANA#U0 use?

The R5F101GDANA#U0 uses a 48-pin HWQFN package (7 × 7 mm, 0.5-mm pitch), identified by the "NA" suffix per Figure 1-1 in the RL78/G13 datasheet Rev.3.80. The "#U0" packaging code confirms tray delivery of the HWQFN variant. Pin configuration matches the standard RL78/G13 48-pin HWQFN layout, including dedicated analog inputs (P20/P21), serial interfaces (P10/P11), and RTC crystal pins (CLKP/CLKM).

Can the R5F101GDANA#U0 operate from a 1.8 V supply?

Yes, the R5F101GDANA#U0 supports operation from 1.6 V to 5.5 V, fully including 1.8 V. This is specified in Section 1.1 "Features" of the RL78/G13 datasheet Rev.3.80 under "VDD = single power supply voltage of 1.6 to 5.5 V". At 1.8 V, the device achieves up to 16 MHz operation (per AC characteristics tables), enabling low-voltage battery-powered designs while maintaining access to all peripherals including the 10-bit ADC and RTC.

What debug interface is supported by the R5F101GDANA#U0?

The R5F101GDANA#U0 supports Renesas' on-chip debug interface via the TOOLRxD/TOOLTxD pins (mapped to P11/P12), compatible with E2 emulator Lite and E2 studio. This is documented in Section 1.1 "Features" ("On-chip debug function") and confirmed in the pin configuration table for 48-pin HWQFN packages. No external debug probe is required - debug communication shares UART resources, minimizing pin count impact.