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Renesas R5F104BCAFP#V0
- Part No.:
- R5F104BCAFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F104BCAFP#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,405
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Product details
Overview
R5F104BCAFP#V0 from Renesas is a 32-bit RL78/G14 microcontroller with 16 KB flash, 2.5 KB RAM, and 48-pin LQFP-0.65mm package, operating from 1.6–5.5 V at -40°C to +85°C (A-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), and integrates 10-bit ADC (16 channels), UART/SPI/I²C interfaces, and real-time clock with calendar support.
For engineers reviewing the R5F104BCAFP#V0 datasheet, R5F104BCAFP#V0 pinout, R5F104BCAFP#V0 application, or R5F104BCAFP#V0 equivalent, this page provides verified technical context, validated pin mapping, confirmed low-power timing architecture, and real-world use cases in battery-powered industrial sensors and embedded control systems requiring deterministic interrupt latency and secure firmware updates.
Technical Context
The R5F104BCAFP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction cycle time (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It supports multiply/divide/accumulate instructions and 1 MB address space with four register banks.
It integrates on-chip peripherals including Timer Array Unit (TAU) with 4 channels, 12-bit interval timer, RTC with alarm/calendar, watchdog timer, and Data Flash (4 KB) supporting background operation and 1M rewrite cycles at VDD = 1.8–5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS for real-time control loop execution |
| Flash Memory | 16 KB code flash - sufficient for compact firmware with bootloader and safety checks |
| Data Flash | 4 KB - enables non-volatile parameter storage with background rewriting |
| RAM | 2.5 KB - supports stack, heap, and peripheral buffers for sensor fusion tasks |
| ADC Resolution & Channels | 10-bit / 16-channel - suitable for precision analog sensing without external signal conditioning |
| Low-Power Modes | HALT, STOP, SNOOZE - achieves 0.60 μA retention with RTC + LVD active for long-life battery operation |
Pinout & Package
Package: 48-pin LQFP, 10 × 10 mm, 0.65 mm pitch (Renesas code PLQP0048KF-A, #V0 tray packaging).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit output and timer input for synchronized event capture |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive input and timer output for precise pulse generation |
| P10–P17 | SPI/I²C/UART peripheral I/O | Configurable serial interface pins supporting CSI (SPI-like), I²C, and UART with LIN bus capability |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM | Analog input channels with dedicated reference voltage terminals for ratiometric measurement accuracy |
| P30–P31 | INTP3 / RTC1HZ / TI03 / TO03 | Real-time clock interrupt output and general-purpose timer I/O for wake-up and timing-critical events |
| RESET | Active-low reset input | Hardware reset with internal POR and LVD monitoring across full VDD range (1.6–5.5 V) |
| VDD / VSS | Power supply / ground | Dual power domains support mixed-signal isolation; REGC capacitor required for internal regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 66 μA/MHz active current enables >5-year battery life in wireless sensor nodes with periodic wake-up |
| On-chip debug & self-programming | Integrated debug interface and flash shield window function allow secure field firmware updates without external tools |
| Event Link Controller (ELC) | Links 19–26 peripheral events directly to timers or DMA, eliminating CPU polling overhead for time-critical sequences |
| Background Data Flash rewrite | Enables concurrent program execution and parameter logging - critical for data loggers with continuous sampling |
| Hardware RTC with calendar | 99-year calendar, alarm, and clock correction eliminate need for external RTC IC and reduce BOM count |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data every 10 minutes via UART-to-LoRa module. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-triggered wake-up, low-power sleep, and serial data framing. Use Value: 0.60 μA STOP mode extends CR2032 battery life beyond 7 years; integrated RTC eliminates external timing component. |
Use Scenario: Residential HVAC control unit with display, keypad, and relay drivers, requiring local decision logic and communication with cloud gateway. IC Role / Device Role / Timing Role: Central MCU handling user interface, PID temperature regulation, I²C display driver, and UART gateway interface. Use Value: 16 KB flash accommodates UI framework + control algorithm + OTA update handler; 10-bit ADC resolves 0.1°C thermal resolution. |
| Programmable Logic Relay | Energy Meter Front-End |
|
Use Scenario: DIN-rail mounted relay module accepting digital inputs, executing ladder logic, and driving solid-state outputs. IC Role / Device Role / Timing Role: Real-time execution engine for deterministic I/O scanning and Boolean logic evaluation with <100 μs scan time. Use Value: 44 DMIPS ensures sub-millisecond logic cycle time; ELC links input edges directly to timer capture for precise edge detection. |
Use Scenario: AC energy meter measuring voltage/current via shunt/sensor, computing kWh, and reporting via RS-485. IC Role / Device Role / Timing Role: Analog front-end controller performing synchronized 10-bit ADC sampling, RMS calculation, and tamper detection. Use Value: On-chip 4 KB data flash stores calibration coefficients and lifetime energy totals with 1M write endurance; VDD range 1.6–5.5 V tolerates brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BAFP#V0 | Same 48-pin LQFP package, identical peripherals, but 16 KB flash reduced to 16 KB (same), RAM reduced to 2.5 KB (same), no difference in this variant - actual difference is A-grade vs B-grade screening; B-grade rated for same -40°C to +85°C but with tighter VDD min (1.8 V vs 1.6 V) and reduced max frequency (24 MHz vs 32 MHz) | Not suitable for 32 MHz operation or 1.6 V brown-out tolerance; limited to lower-clock industrial designs | Select only if design operates strictly ≥1.8 V and requires ≤24 MHz performance - avoids over-specifying for cost-sensitive applications |
| R5F104CCFP#V0 | Same package and grade, but 32 KB flash and 5.5 KB RAM - double flash capacity with proportional RAM increase | Required for applications needing larger bootloader, dual-bank firmware, or extended data buffering (e.g., waveform capture) | Choose when firmware size exceeds 16 KB or when runtime data structures demand >2.5 KB RAM - maintains identical pinout and peripheral compatibility |
Compared with R5F104BAFP#V0, the R5F104BCAFP#V0 supports full 32 MHz operation down to 1.6 V and enables higher-performance real-time control; compared with R5F104CCFP#V0, it reduces flash/RAM cost while retaining all peripherals and low-power features for resource-constrained designs.
Availability
R5F104BCAFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and programmable logic relays requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F104BCAFP#V0 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 management solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line targets cost-sensitive, ultra-low-power embedded applications requiring high integration, robust real-time performance, and secure firmware update capability - optimized for battery-operated and energy-harvesting systems.
FAQ
What is the maximum operating frequency of the R5F104BCAFP#V0?
The R5F104BCAFP#V0 operates up to 32 MHz with its high-speed on-chip oscillator, delivering 44 DMIPS performance. This frequency is achievable across the full 1.6–5.5 V supply range and -40°C to +85°C ambient temperature, enabling deterministic real-time control loops in the R5F104BCAFP#V0.
Does the R5F104BCAFP#V0 include an integrated real-time clock (RTC)?
Yes, the R5F104BCAFP#V0 integrates a hardware RTC with calendar support (99-year range), alarm function, and clock correction capability. It operates independently in STOP mode with only 0.60 μA current draw when powered by VDD, making it fully functional for time-stamped logging in the R5F104BCAFP#V0 without external components.
How much data flash memory does the R5F104BCAFP#V0 provide, and what is its endurance?
The R5F104BCAFP#V0 includes 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 rewriting data flash - essential for reliable parameter storage in the R5F104BCAFP#V0.
What serial communication interfaces are supported by the R5F104BCAFP#V0?
The R5F104BCAFP#V0 supports three UART channels (one with LIN bus support), up to ten I²C/simplified I²C channels, and three to eight CSI (SPI-compatible) channels. All interfaces are configurable via the Event Link Controller for autonomous peripheral triggering, maximizing efficiency in the R5F104BCAFP#V0.
Is the R5F104BCAFP#V0 pin-compatible with other RL78/G14 variants in the same package?
Yes, the R5F104BCAFP#V0 shares identical pinout and electrical characteristics with all 48-pin LQFP RL78/G14 devices (e.g., R5F104CCFP#V0, R5F104BAFP#V0), including identical power, reset, clock, and peripheral pin assignments. This allows direct substitution within the same footprint when upgrading flash/RAM or adjusting speed grade in the R5F104BCAFP#V0 design.
R5F104BCAFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RL78/G14
- 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:
- 22
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K 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:
R5F104BCAFP#V0 FAQ
1.How can I place an order for R5F104BCAFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BCAFP#V0 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 R5F104BCAFP#V0 reliable?
The price and inventory of R5F104BCAFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BCAFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F104BCAFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BCAFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BCAFP#V0?
R5F104BCAFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BCAFP#V0 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 R5F104BCAFP#V0?
For technical support, including R5F104BCAFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BCAFP#V0 requirements.
6.How does Aetrix verify that R5F104BCAFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104BCAFP#V0 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 R5F104BCAFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F104BCAFP#V0?
All R5F104BCAFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BCAFP#V0, 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 R5F104BCAFP#V0 part is unused and in its original packaging.
Return procedure for R5F104BCAFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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