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Renesas R5F104EHGNA#20
- Part No.:
- R5F104EHGNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F104EHGNA#20.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:650
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Product details
Overview
R5F104EHGNA#20 from Renesas is a 40-pin HWQFN-packaged RL78/G14 16-bit microcontroller with 128 KB flash, 16 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +105°C (industrial G-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates A/D, D/A, timers, UART/I²C/CSI interfaces, and on-chip oscillators for embedded control in motor drives and sensor nodes.
For engineers reviewing the R5F104EHGNA#20 datasheet, R5F104EHGNA#20 pinout, R5F104EHGNA#20 application, or R5F104EHGNA#20 equivalent, key selection criteria include industrial temperature support (−40°C to +105°C), 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch) footprint compatibility, integrated 12-bit RTC with calendar/alarm, and background data flash rewriting capability (1M write cycles).
Technical Context
The R5F104EHGNA#20 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 low-speed mode). It includes a Data Transfer Controller (DTC) with chain transfer and an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention.
Its mixed-signal subsystem comprises an 8/10-bit A/D converter (up to 20 channels, internal 1.45 V reference, temperature sensor), dual-channel 8-bit D/A with real-time output, and up to two comparators with window/high-speed/low-speed modes. Power management includes on-chip POR, 14-level LVD with interrupt/reset options, and REGC capacitor-based voltage regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Clock Speed | 32 MHz (44 DMIPS); high-accuracy on-chip oscillator selectable from 1–64 MHz ±1.0% over full voltage/temperature range |
| Memory | 128 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 16 KB RAM |
| Power Consumption | 66 μA/MHz active current; 0.60 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 8/10-bit A/D (20 ch, internal 1.45 V ref, temp sensor), 8-bit D/A (2 ch, 0–VDD output), 2 comparator channels |
| Timers & RTC | 12× 16-bit timers (TAU/Timer RJ/RD/RG), 12-bit interval timer, calendar RTC (99-year, alarm, clock correction) |
| Serial Interfaces | 3–4 UART/LIN channels, 4–10 I²C/simplified I²C channels, 3–8 CSI (SPI-compatible) channels |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS. Industrial-grade (G) operation from −40°C to +105°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/P01 | TxD1/RxD1/TO00/TI00 | UART1 transceiver + 16-bit timer input/output for motor phase timing or serial comms |
| P10–P17 | SCK11/SI11/SO11/UART2/INTP5/TRDIOx | Multiplexed CSI/I²C/UART2 pins with programmable peripheral redirection via PIOR registers |
| P20–P27 | ANI0–ANI7/AVREFP/AVREFM/ANO0/ANO1 | 8-channel analog input bank with dedicated reference voltage inputs and analog outputs |
| P30/P31 | RTC1HZ/SCK00/INTP3/TI03/TO03 | Real-time clock output + SPI master clock + 16-bit timer I/O for encoder or PWM sync |
| P50/P51 | SI00/SO00/RxD0/TxD0/TOOLRxD/TOOLTxD | UART0 debug interface with on-chip debugger support and tool communication path |
| P60–P62 | SCLA0/SDAA0/SSI00 | I²C master/slave interface + synchronous serial interface for EEPROM or sensor comms |
| P70–P73 | KR0–KR3/SCK21/SI21/SO21 | Keypad interrupt inputs + secondary CSI interface for auxiliary peripherals |
| RESET/REGC/VDD/VSS | Reset, regulator capacitor, supply rails | REGC requires 0.47–1 µF capacitor to VSS; VDD operates 1.6–5.5 V; RESET is active-low |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA consumption with RTC and LVD active-enables battery-powered operation for >10 years |
| Background data flash rewrite | Execute code from flash while rewriting data flash (BGO), enabling firmware updates without interruption |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events eliminates CPU polling overhead and reduces latency |
| On-chip debug with flash shield | Secure boot swapping and flash shield window prevent unauthorized access during development and field updates |
| Dual-voltage I/O capability | Interface directly with 1.8 V, 2.5 V, or 3 V external logic without level shifters |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor control in HVAC blowers with thermal monitoring and LIN communication. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, managing 3-phase PWM generation via TAU timers, and sampling current/voltage via 10-bit A/D. Use Value: Integrated 128 KB flash stores complex control firmware; 0.60 μA STOP mode enables standby during idle periods without external wake-up circuitry. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and CO₂ with wireless upload. IC Role / Device Role / Timing Role: Sensor hub aggregating data via I²C, performing local calibration using internal temperature sensor and 1.45 V reference, and scheduling transmissions via RTC alarm. Use Value: 66 μA/MHz active current extends battery life; background data flash rewrite allows over-the-air configuration updates without halting sensor acquisition. |
| Home Appliance UI | Industrial PLC I/O Module |
Use Scenario: Touchless keypad and display driver in microwave oven with safety interlock monitoring. IC Role / Device Role / Timing Role: Keypad scan controller (KR0–KR3), buzzer output (PCLBUZ0/1), and safety-critical GPIO monitoring via INTP0–INTP5 with fast response. Use Value: Hardware keypad interrupt capability reduces CPU load; dual comparator channels validate door switch thresholds independently of software timing. | Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs and relay drivers. IC Role / Device Role / Timing Role: Protocol bridge between Modbus RTU (UART2) and local GPIO/timer-controlled relay timing (TO03/TO00). Use Value: 40-pin HWQFN provides sufficient I/O (26–92 total) for discrete signal handling; industrial G-grade rating ensures reliability in factory ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104EGGNA#20 | 96 KB flash, 12 KB RAM, 8 KB data flash; identical package, pinout, and peripheral set | Lower memory capacity suits simpler control tasks without firmware expansion headroom | Select when application firmware fits within 96 KB and cost sensitivity outweighs future scalability needs |
| R5F104FHGNA#20 | 192 KB flash, 20 KB RAM, 8 KB data flash; same 40-pin HWQFN package and G-grade temperature range | Higher memory supports larger protocol stacks (e.g., full Modbus TCP offload) or dual-application partitioning | Choose for designs requiring firmware growth margin or concurrent real-time + connectivity tasks |
Compared with R5F104EGGNA#20, the R5F104EHGNA#20 provides 32 KB additional flash and 4 KB more RAM for enhanced feature integration, while R5F104FHGNA#20 further extends memory headroom-making the R5F104EHGNA#20 the optimal balance of capacity, cost, and industrial robustness for mid-complexity embedded control.
Availability
R5F104EHGNA#20 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UIs, and PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104EHGNA#20 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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, energy-constrained industrial and consumer applications requiring high integration and long-term reliability.
FAQ
What is the operating temperature range for the R5F104EHGNA#20?
The R5F104EHGNA#20 is rated for industrial applications with an operating ambient temperature range of −40°C to +105°C (G-grade), validated across its full 1.6–5.5 V supply range and all specified peripheral functions including RTC, A/D, and oscillators.
Does the R5F104EHGNA#20 support in-system programming via standard interfaces?
Yes, the R5F104EHGNA#20 supports on-chip debugging and self-programming via its built-in UART0 interface (P50/P51) using the Renesas Flash Programmer or E2 studio tools. It includes boot swapping and flash shield window protection to secure firmware updates.
How many analog input channels does the R5F104EHGNA#20 provide, and what reference options are available?
The R5F104EHGNA#20 provides up to 20 analog input channels (ANI0–ANI19) with selectable reference voltages: external AVREFP/AVREFM pins or internal 1.45 V reference. The A/D converter supports both 8-bit and 10-bit resolution modes across the full 1.6–5.5 V supply range.
Is the R5F104EHGNA#20 pin-compatible with other RL78/G14 variants in the 40-pin HWQFN package?
Yes, all RL78/G14 devices in the 40-pin HWQFN package-including R5F104EHGNA#20, R5F104EGGNA#20, and R5F104FHGNA#20-share identical pinouts, electrical characteristics, and peripheral mappings, enabling drop-in memory-scaling upgrades without PCB changes.
What power-saving modes are available on the R5F104EHGNA#20, and what peripherals remain active in each?
The R5F104EHGNA#20 offers HALT (CPU stopped, peripherals active), STOP (CPU/peripherals halted except RTC, LVD, and reset circuit), and SNOOZE (selected peripherals like UART or A/D operate while CPU sleeps). In STOP mode, only RTC, LVD, and reset logic consume 0.60 μA-critical for battery longevity.
R5F104EHGNA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 28
- Program Memory Size:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 9x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104EHGNA#20 FAQ
1.How can I place an order for R5F104EHGNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104EHGNA#20 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 R5F104EHGNA#20 reliable?
The price and inventory of R5F104EHGNA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104EHGNA#20 is usually 5 days.
3.What payment methods are accepted for R5F104EHGNA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104EHGNA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104EHGNA#20?
R5F104EHGNA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104EHGNA#20 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 R5F104EHGNA#20?
For technical support, including R5F104EHGNA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104EHGNA#20 requirements.
6.How does Aetrix verify that R5F104EHGNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F104EHGNA#20 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 R5F104EHGNA#20 meets industry standards.
7.What is the process for return or replacement of R5F104EHGNA#20?
All R5F104EHGNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104EHGNA#20, 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 R5F104EHGNA#20 part is unused and in its original packaging.
Return procedure for R5F104EHGNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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