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Renesas R5F104BDANA#20
- Part No.:
- R5F104BDANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F104BDANA#20.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R5F104BDANA#20 from Renesas is a 32-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 32 KB flash, 4 KB data flash, and 4 KB RAM, operating from 1.6–5.5 V at -40°C to +85°C (industrial grade D), delivering 44 DMIPS at 32 MHz for low-power embedded control in motor drives and sensor interfaces.
For engineers reviewing the R5F104BDANA#20 datasheet, R5F104BDANA#20 pinout, R5F104BDANA#20 application, or R5F104BDANA#20 equivalent, key selection criteria include its 32-pin HWQFN (5 × 5 mm, 0.5 mm pitch) package, integrated RTC + LVD + 10-bit ADC (16-channel), ultra-low power HALT/STOP/SNOOZE modes, and support for UART, I²C, and CSI serial interfaces in industrial temperature environments.
Technical Context
The R5F104BDANA#20 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode), plus multiply/divide/accumulate instructions and 1 MB address space.
It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz), Event Link Controller (ELC) for peripheral event chaining, Data Transfer Controller (DTC) with block/repeat transfer modes, and background operation (BGO) for concurrent code execution during data flash rewriting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 32 KB code flash + 4 KB data flash with 1,000,000 write cycles and BGO support |
| RAM | 4 KB on-chip RAM for general-purpose and stack usage |
| Operating Voltage | 1.6 V to 5.5 V single supply enables direct interface with 1.8/2.5/3.3 V peripherals |
| Temperature Range | -40°C to +85°C (industrial D-grade qualification) |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active), SNOOZE for low-latency wake-up |
| ADC | 10-bit resolution A/D converter with 16 analog input channels and internal 1.45 V reference |
| Timers | 8× 16-bit TAU channels, 1× 12-bit interval timer, 1× RTC with calendar/alarm/correction |
Pinout & Package
Package: 32-pin HWQFN (5 × 5 mm, 0.5 mm pitch) with exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit, timer input, and debug clock source; supports TTL-level serial communication |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive and timer output; enables full-duplex UART with hardware flow control capability |
| P10–P17 | CSI/I²C/UART/SPI-compatible I/O | Multi-function serial interface pins configurable as SCK11/SI11/SDA11/TRDIOD1 etc., enabling flexible peripheral routing |
| P20–P23 | ANI0–ANI3 / AVREFP / AVREFM / ANO0 | Analog inputs with dedicated reference voltage terminals; supports differential ADC measurements and analog output |
| P30–P31 | INTP3 / RTC1HZ / TI03 / TO03 / PCLBUZ0 | Real-time clock interrupt output and programmable buzzer drive; enables time-triggered control without external components |
| P50–P51 | SI00/RxD0/SDA00/TRGIOA & SO00/TxD0/TRGIOB | Dual-role debug interface pins supporting on-chip debugging and UART communication simultaneously |
| P121–P122 | X1 / X2 / EXCLK | Crystal oscillator input/output pins for precise timing; supports 32.768 kHz RTC crystal and up to 20 MHz main crystal |
| RESET / REGC / VDD / VSS | Reset control / regulator capacitor / power rails | Hardware reset input; REGC requires 0.47–1 µF capacitor to VSS for stable internal voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.60 μA current draw with RTC and LVD active-enables battery-powered operation for years |
| On-chip debug with flash shield | Secure self-programming via boot swapping and flash shield window prevents unauthorized firmware access |
| Event Link Controller (ELC) | Links 19–26 peripheral events without CPU intervention-reduces latency and frees CPU for computation |
| Background operation (BGO) | Executes program code while rewriting data flash-enables seamless firmware updates and data logging |
| Different-potential interface | I/O pins tolerate 1.8/2.5/3.3 V logic levels-eliminates level shifters when interfacing with mixed-voltage peripherals |
| Integrated RTC with calendar | 99-year calendar, alarm, and clock correction-provides accurate timekeeping without external real-time clock IC |
Applications
| Motor Control Systems | Industrial Sensor Nodes |
|---|---|
Use Scenario: Brushless DC motor commutation and speed regulation in HVAC blowers and pump controllers. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing PWM outputs, and monitoring current/voltage feedback via ADC. Use Value: Integrated 16-bit timers with complementary PWM outputs and 10-bit ADC enable precise closed-loop control without external timing or signal conditioning ICs. | Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and pressure over long intervals. IC Role / Device Role / Timing Role: Low-power host MCU acquiring sensor data, performing local preprocessing, and transmitting via UART/I²C to gateway. Use Value: STOP mode current of 0.60 μA with RTC active allows multi-year battery life; on-chip LVD ensures reliable brown-out detection during voltage sag. |
| Smart Home Appliances | Factory Automation I/O Modules |
Use Scenario: Control unit in washing machines managing water valves, drum motor, heating elements, and user interface. IC Role / Device Role / Timing Role: Central controller coordinating sequential operations, safety interlocks, and HMI communication via UART/LCD interface. Use Value: 32 KB flash and 4 KB RAM provide sufficient space for complex state machines and fault-handling routines; industrial-grade temp range ensures reliability in hot appliance enclosures. | Use Scenario: DIN-rail mounted digital I/O expansion module converting fieldbus commands into discrete relay/digital outputs. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager translating Modbus RTU or CANopen messages into synchronized output toggling. Use Value: ELC enables deterministic response to fieldbus interrupts; multiple UART/I²C channels support dual-protocol gateways without external bridge ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BEANA#20 | Same 32-pin HWQFN package, but with 48 KB flash, 4 KB data flash, and 5.5 KB RAM | Supports larger firmware images and more complex data buffering; identical peripheral set and pinout | Select when firmware size exceeds 32 KB or additional RAM is required for protocol stacks or data logging |
| R5F104BDAFP#V0 | LQFP-32 (7 × 7 mm, 0.8 mm pitch) package; same 32 KB flash, 4 KB data flash, 4 KB RAM, and industrial D-grade rating | Compatible for PCB redesign where QFN thermal performance is not critical and through-hole rework is preferred | Choose for prototyping or legacy board compatibility where LQFP footprint and hand-soldering are advantageous |
Compared with R5F104BEANA#20, the R5F104BDANA#20 offers optimized cost and power for fixed-function control; compared with R5F104BDAFP#V0, it delivers superior thermal dissipation and board density in the same pin count-critical for compact industrial modules.
Availability
R5F104BDANA#20 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance management, and battery-powered sensor nodes requiring stable component supply across extended production lifecycles.
Supply support for R5F104BDANA#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line targets cost-sensitive, ultra-low-power embedded applications demanding robust industrial qualification, integrated analog peripherals, and secure firmware update capability.
FAQ
What is the maximum operating frequency of the R5F104BDANA#20?
The R5F104BDANA#20 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator, delivering 44 DMIPS performance. It also supports ultra-low-speed operation down to 32.768 kHz for RTC and low-power wake-up functions, with instruction execution time scaling accordingly from 0.03125 µs to 30.5 µs.
Does the R5F104BDANA#20 include an integrated real-time clock (RTC)?
Yes, the R5F104BDANA#20 includes a fully featured RTC with calendar support for 99 years, alarm function, and clock correction capability. It operates independently in STOP mode with only 0.60 μA current draw, powered by the internal LVD and maintained via the 32.768 kHz crystal connected to P121/P122.
What serial communication interfaces are supported by the R5F104BDANA#20?
The R5F104BDANA#20 supports three UART channels (one with LIN-bus support), four to ten I²C/simplified I²C channels, and three to eight CSI (SPI-compatible) channels. These interfaces are implemented on multiplexed pins (e.g., P10–P15, P14–P15) and configurable via peripheral I/O redirection registers for flexible board layout.
Is the R5F104BDANA#20 qualified for industrial temperature operation?
Yes, the R5F104BDANA#20 carries the 'D' suffix indicating industrial qualification with guaranteed operation from -40°C to +85°C. This rating applies across all electrical specifications including flash endurance, ADC accuracy, and oscillator stability, making it suitable for factory automation, building controls, and outdoor equipment.
How much data flash memory does the R5F104BDANA#20 provide, and what is its endurance?
The R5F104BDANA#20 provides 4 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles at VDD = 1.8–5.5 V. It supports background operation (BGO), allowing program execution from code flash while data flash is being rewritten-essential for reliable firmware updates and nonvolatile parameter storage in the R5F104BDANA#20.
R5F104BDANA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-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:
- 22
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104BDANA#20 FAQ
1.How can I place an order for R5F104BDANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BDANA#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 R5F104BDANA#20 reliable?
The price and inventory of R5F104BDANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BDANA#20 is usually 5 days.
3.What payment methods are accepted for R5F104BDANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BDANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BDANA#20?
R5F104BDANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BDANA#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 R5F104BDANA#20?
For technical support, including R5F104BDANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BDANA#20 requirements.
6.How does Aetrix verify that R5F104BDANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F104BDANA#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 R5F104BDANA#20 meets industry standards.
7.What is the process for return or replacement of R5F104BDANA#20?
All R5F104BDANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BDANA#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 R5F104BDANA#20 part is unused and in its original packaging.
Return procedure for R5F104BDANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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