Renesas R5F101GHDNA#U0
- Part No.:
- R5F101GHDNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F101GHDNA#U0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 48HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F101GHDNA#U0 from Renesas is a 48-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB RAM, and no data flash memory, operating at up to 32 MHz (41 DMIPS), supporting ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), and multiple serial interfaces for industrial control and sensor node applications.
For engineers reviewing the R5F101GHDNA#U0 datasheet, R5F101GHDNA#U0 pinout, R5F101GHDNA#U0 application, or R5F101GHDNA#U0 equivalent, key selection criteria include its 48-pin HWQFN-0.5mm package, absence of on-chip data flash, industrial-grade temperature range (−40°C to +105°C), and integrated real-time clock with calendar function.
Technical Context
The R5F101GHDNA#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 mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with 99-year calendar and alarm, and watchdog timer powered by dedicated low-speed oscillator.
Its peripheral set includes up to 16 channels of 16-bit timers, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN channels, 2–8 CSI (SPI-compatible) channels, and DMA controller with 4 channels supporting 2-clock transfers between SFR and RAM - all optimized for deterministic real-time response in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS); supports dynamic clock switching between high-speed on-chip oscillator options (1–32 MHz) |
| Memory Configuration | 128 KB code flash (1 KB block size), 8 KB RAM, 0 KB data flash - eliminates background rewrite overhead but requires external nonvolatile storage for logging |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled - enables multi-year battery life in metering and sensor nodes |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor (enabled only in HS mode) |
| Operating Temperature | −40°C to +105°C (Industrial G-grade), qualified for under-hood automotive and factory-floor environments |
| Supply Voltage Range | 1.6 V to 5.5 V single supply - supports direct Li-ion battery (3.0–4.2 V) or 3.3/5.0 V rail operation without regulators |
Pinout & Package
Package: 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation; thermal pad must be soldered for thermal management |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57 | General-purpose I/O ports | Up to 44 programmable I/O pins with N-ch open-drain (6 V tolerant), TTL input buffer, and pull-up resistor options |
| P20/P21 | ADC analog inputs / AVREFP/AVREFM | Dedicated analog reference voltage pins; enable precise 10-bit ADC measurements across full VDD range (1.6–5.5 V) |
| P10/P11/P12/P13 | SPI0 (CSI0) interface | Hardware SPI master/slave with configurable clock polarity/phase; supports daisy-chain sensor networks |
| P30/P31 | UART0 (LIN-capable) | Full-duplex UART with LIN 2.2 physical layer support - suitable for automotive body electronics and industrial bus nodes |
| P40/P41 | I²C0 (SCL0/SDA0) | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C interface with slew-rate control for noise immunity |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for fail-safe startup |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD active - enables decade-scale battery operation in utility meters and IoT endpoints |
| Real-time clock with calendar | Hardware calendar tracking 99 years with alarm and auto-correction - eliminates software RTC drift and reduces firmware overhead |
| Self-programmable flash | Code flash supports in-application reprogramming with boot-swap and flash-shield window - enables secure firmware updates |
| Multi-channel DMA | 4-channel DMA with 2-clock transfers between peripherals and RAM - offloads CPU during ADC sampling or UART streaming |
| Different-potential I/O interface | Configurable I/O voltage tolerance allows direct connection to 1.8 V, 2.5 V, or 3.0 V logic without level shifters |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Residential electricity/water/gas meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC, RTC-based billing intervals, and sub-GHz RF transceiver timing. Use Value: 0.57 μA STOP mode extends lithium primary battery life beyond 10 years; 26-channel ADC supports multi-sensor fusion (voltage, current, temperature). |
Use Scenario: Wireless condition-monitoring node on motors, pumps, or HVAC units in factory settings. IC Role / Device Role / Timing Role: Edge intelligence hub acquiring vibration, temperature, and humidity data, then triggering alerts via UART-to-LoRaWAN gateway. Use Value: −40°C to +105°C rating ensures reliability near hot machinery; LIN-capable UART simplifies integration with legacy industrial buses. |
| Automotive Body Control | Home Appliance Control |
|
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication to BCM. IC Role / Device Role / Timing Role: LIN slave node executing actuator control loops synchronized to 19.2 kbps bus timing and internal PWM timers. Use Value: Integrated LIN physical layer eliminates external transceiver; 48-pin HWQFN enables compact PCB layout in space-constrained modules. |
Use Scenario: Main control MCU in washing machine, managing motor drive, water valves, display, and user interface. IC Role / Device Role / Timing Role: Real-time coordinator of 16-bit PWM motor control, touch-button scanning, and RTC-based delayed start. Use Value: 128 KB flash accommodates complex UI logic and safety-certified motor algorithms; 1.6–5.5 V operation tolerates brown-out during spin cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GHDNA#U0 | Includes 4 KB data flash; same 128 KB code flash, 8 KB RAM, and identical pinout/package | Supports firmware parameter storage and field-updatable calibration tables without external EEPROM | Select when nonvolatile parameter retention is required and cost premium for data flash is acceptable |
| R5F101GHDFB#V0 | Same core/peripherals but in 48-pin LFQFP-0.5 mm package (7×7 mm vs HWQFN's 7×7 mm footprint); different thermal pad and solder profile | Better suited for manual assembly or rework; slightly higher thermal resistance than HWQFN | Choose for prototyping or low-volume production where QFP handling is preferred over QFN reflow constraints |
Compared with R5F101GHDNA#U0, the R5F100GHDNA#U0 adds data flash for local configuration storage but increases BOM cost, while the R5F101GHDFB#V0 trades HWQFN's thermal performance for QFP's assembly flexibility - both retain identical functional capability and software compatibility.
Availability
R5F101GHDNA#U0 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, automotive body control modules, and home appliance control systems requiring stable component supply and long-term industrial temperature support.
Supply support for R5F101GHDNA#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 markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and thermally demanding embedded applications - balancing performance, integration, and energy efficiency without compromising industrial reliability.
FAQ
Does R5F101GHDNA#U0 include on-chip data flash memory?
No, R5F101GHDNA#U0 does not include data flash memory. The "101" in the part number explicitly denotes zero data flash capacity, distinguishing it from "100" variants like R5F100GHDNA#U0 which integrate 4 KB or 8 KB data flash. This omission reduces cost and die size but requires external nonvolatile storage for parameter logging or firmware updates.
What is the maximum ambient temperature rating for R5F101GHDNA#U0?
R5F101GHDNA#U0 is rated for −40°C to +105°C operation (Industrial G-grade), as confirmed by Renesas' RL78/G13 datasheet Rev.3.80. This extended temperature range qualifies it for under-hood automotive, factory automation, and outdoor metering applications where thermal stress exceeds standard commercial-grade limits.
Which package type and pin count does R5F101GHDNA#U0 use?
R5F101GHDNA#U0 uses a 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch) with an exposed thermal pad, identified by the "NA" suffix and "#U0" tray packaging code. This matches the PWQN0048KB-A Renesas package code and is distinct from LFQFP (FB), LQFP (FA), or WFLGA (LA) variants in the same family.
Can R5F101GHDNA#U0 operate from a single 3.3 V supply?
Yes, R5F101GHDNA#U0 operates across a 1.6 V to 5.5 V supply range, fully supporting 3.3 V nominal rails. Its internal voltage regulator, POR, and LVD circuits are designed for stable operation at 3.3 V, enabling direct interfacing with common logic families and eliminating need for additional voltage translation.
Does R5F101GHDNA#U0 support LIN bus communication?
Yes, R5F101GHDNA#U0 supports LIN 2.2 communication via its UART peripherals (e.g., UART0 on P30/P31), which include hardware LIN break detection, sync field generation, and checksum calculation - enabling compliant slave-node implementation without external transceivers.
R5F101GHDNA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101GHDNA#U0 FAQ
1.How can I place an order for R5F101GHDNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GHDNA#U0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F101GHDNA#U0 reliable?
The price and inventory of R5F101GHDNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GHDNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F101GHDNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GHDNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GHDNA#U0?
R5F101GHDNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GHDNA#U0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F101GHDNA#U0?
For technical support, including R5F101GHDNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GHDNA#U0 requirements.
6.How does Aetrix verify that R5F101GHDNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F101GHDNA#U0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F101GHDNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F101GHDNA#U0?
All R5F101GHDNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GHDNA#U0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F101GHDNA#U0 part is unused and in its original packaging.
Return procedure for R5F101GHDNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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