Renesas R5F104GJAFB#30
- Part No.:
- R5F104GJAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GJAFB#30.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104GJAFB#30 from Renesas is a 48-pin LFQFP, 0.5 mm pitch, industrial-grade (G) 16-bit RL78/G14 microcontroller with 192 KB flash, 8 KB data flash, 20 KB RAM, and operation from -40°C to +105°C. It delivers 44 DMIPS at 32 MHz, consumes 66 μA/MHz active and 0.60 μA in RTC+LVD-only mode, and integrates UART, I²C, SPI, 12-bit ADC (20 ch), RTC, and low-power modes for embedded control in harsh environments.
For engineers reviewing the R5F104GJAFB#30 datasheet, R5F104GJAFB#30 pinout, R5F104GJAFB#30 application, or R5F104GJAFB#30 equivalent, key selection criteria include its 192 KB/8 KB/20 KB memory configuration, LFQFP-48 0.5 mm pitch package, industrial temperature rating, integrated analog peripherals (ADC/DAC/comparator), and support for SNOOZE/HALT/STOP low-power states in resource-constrained designs.
Technical Context
The R5F104GJAFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It supports multiply/divide/accumulate instructions and features an on-chip high-accuracy ±1.0% oscillator (1–64 MHz selectable).
Peripheral integration includes a Data Transfer Controller (DTC) with chain transfer, Event Link Controller (ELC) for 19–26 event-source routing, 16-bit Timer Array Unit (TAU) with up to 8 channels, and background operation (BGO) for data flash rewriting while executing code from program memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 44 DMIPS @ 32 MHz |
| Flash / Data Flash / RAM | 192 KB code flash, 8 KB data flash (1M rewrite cycles), 20 KB SRAM |
| Operating Voltage / Temp | 1.6–5.5 V supply; -40°C to +105°C industrial grade (G suffix) |
| Low-Power Modes | 66 μA/MHz active; 0.60 μA RTC+LVD only; HALT/STOP/SNOOZE modes |
| Analog Peripherals | 10-bit ADC (20 ch, internal 1.45 V ref & temp sensor), 8-bit DAC (2 ch), 2 comparators |
| Serial Interfaces | UART/LIN (4 ch), I²C (10 ch), CSI (SPI-compatible, 8 ch) |
| Timers & Clock | 16-bit TAU (8 ch), 12-bit interval timer, RTC with calendar/alarm/correction, 32.768 kHz crystal support |
Pinout & Package
Package: 48-pin LFQFP, 7 × 7 mm body, 0.5 mm pitch, exposed pad not present (LFQFP, not HWQFN).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Multi-function serial I/O (CSI/I²C/UART) | Configurable peripheral interface pins supporting simultaneous SPI, I²C, and UART protocols with flexible pin assignment via PIOR registers |
| P20–P27 | Analog input / reference / output | 20-channel ADC inputs (ANI0–ANI19), AVREFP/AVREFM references, VCOUT0/VCOUT1 DAC outputs |
| P30–P31, P50–P51 | Interrupt timers / communication I/O | External interrupt inputs (INTP0–INTP5), timer I/O (TI00–TI03, TO00–TO03), UART RX/TX (RxD0/TxD0, RxD1/TxD1) |
| P60–P62, P70–P75 | Secondary serial / key scan / clock | I²C (SCLA0/SDAA0), SSI, key register (KR0–KR5), and external crystal (XT1/XT2/EXCLKS) support |
| RESET, REGC, VDD, VSS | Power & reset management | Dedicated reset input; REGC requires 0.47–1 µF capacitor to VSS for internal regulator stability; dual power rails enable mixed-voltage I/O interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swapping and flash shield window enable secure firmware updates without external programmer |
| Background data flash write | Execute application code from flash while rewriting data flash - no CPU stall required |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DMA transfer → interrupt) reduces CPU overhead |
| Dual voltage I/O capability | Interface directly with 1.8 V, 2.5 V, or 3.0 V logic without level shifters using programmable I/O voltage settings |
| Real-time clock with correction | Calendar function (99-year range), alarm, and automatic drift compensation using temperature sensor feedback |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC blowers or pump drives requiring precise timing, analog sensing, and low EMI. IC Role / Device Role / Timing Role: Main system controller managing PWM generation, current/voltage ADC sampling, thermal monitoring, and LIN/UART communication to host MCU. Use Value: Integrated 16-bit TAU timers with complementary PWM outputs, 10-bit ADC with internal temperature sensor, and 0.60 μA RTC+LVD mode extend battery life in standby metering phases. | Use Scenario: Residential/utility smart meters measuring voltage, current, and power quality with tamper detection and secure firmware updates. IC Role / Device Role / Timing Role: Dedicated metrology co-processor handling real-time sampling, RMS calculation, time-of-use logging, and secure data flash storage of billing records. Use Value: 8 KB data flash rated for 1 million rewrites ensures reliable long-term energy accumulation; BGO allows continuous measurement during firmware patching. |
| Automotive Body Electronics | Industrial IoT Sensor Node |
Use Scenario: Door module controlling window lift, mirror fold, seat position, and interior lighting with LIN bus connectivity. IC Role / Device Role / Timing Role: LIN transceiver interface MCU with GPIO expansion, PWM dimming control, and wake-on-LIN functionality. Use Value: LIN-compliant UART with automatic sync-break detection, 48-pin LFQFP package fits compact automotive PCB layouts, and -40°C to +105°C rating meets AEC-Q100 Grade 2 requirements. | Use Scenario: Wireless environmental sensor node (temp/humidity/pressure) operating on coin-cell battery for >5 years in remote locations. IC Role / Device Role / Timing Role: Ultra-low-power sensor hub aggregating analog/digital sensor data, performing local preprocessing, and triggering BLE/Wi-Fi transmission only on threshold events. Use Value: 66 μA/MHz active current and sub-μA STOP mode minimize average power; integrated RTC enables precise duty-cycled wake-up without external timer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GHAFB#30 | Same package and pinout; 128 KB flash, 8 KB data flash, 16 KB RAM | Lower memory capacity suits simpler control tasks with fewer firmware features or smaller data buffers | Select when application firmware size < 128 KB and RAM usage ≤ 16 KB to reduce cost without sacrificing footprint or toolchain compatibility |
| R5F104GLAFB#30 | Same package and pinout; 384 KB flash, 8 KB data flash, 32 KB RAM | Higher memory supports complex protocol stacks (e.g., Modbus TCP), OTA updates, or larger data logging buffers | Choose for future-proofing or applications requiring dual-bank firmware, extended calibration tables, or real-time analytics firmware |
Compared with R5F104GHAFB#30 and R5F104GLAFB#30, the R5F104GJAFB#30 provides optimal balance of memory (192 KB flash/20 KB RAM), industrial temperature tolerance, and ultra-low-power operation - making it ideal for mid-tier embedded systems where cost, performance, and longevity must be tightly balanced.
Availability
R5F104GJAFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, automotive body electronics, and industrial IoT sensor node applications requiring stable component supply across extended product lifecycles.
Supply support for R5F104GJAFB#30 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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial and consumer applications - emphasizing energy efficiency, integrated analog, and robust peripheral flexibility.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104GJAFB#30?
The R5F104GJAFB#30 operates up to 32 MHz using its on-chip high-speed oscillator, delivering 44 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 µs at 32 MHz, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation - all within the same R5F104GJAFB#30 device.
Does the R5F104GJAFB#30 support in-system programming and secure firmware updates?
Yes, the R5F104GJAFB#30 supports full in-system programming via its on-chip debug interface and includes boot swapping and flash shield window features. These capabilities allow secure, field-upgradable firmware with protection against unauthorized read/write access - critical for maintaining integrity in deployed R5F104GJAFB#30-based systems.
What analog peripherals are integrated into the R5F104GJAFB#30 and how are they configured?
The R5F104GJAFB#30 integrates a 10-bit ADC with 20 input channels, two 8-bit DAC outputs (VCOUT0/VCOUT1), and two comparators with selectable internal/external references. All analog blocks share the same AVREFP/AVREFM reference pins and are configured via dedicated control registers - enabling synchronized acquisition and real-time signal conditioning within the R5F104GJAFB#30 without external components.
How does the R5F104GJAFB#30 achieve ultra-low power consumption in industrial applications?
The R5F104GJAFB#30 achieves 0.60 μA in STOP mode with only RTC and LVD active, and 66 μA/MHz in active mode, through hardware-accelerated low-power modes (HALT/STOP/SNOOZE), voltage regulator optimization, and peripheral clock gating. Its -40°C to +105°C rating ensures this efficiency remains stable across industrial thermal profiles - a verified characteristic of the R5F104GJAFB#30 silicon.
Is the R5F104GJAFB#30 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 48-pin LFQFP-0.5 mm package - including R5F104GJAFB#30, R5F104GHAFB#30, and R5F104GLAFB#30 - share identical pinouts and electrical characteristics. This allows direct substitution within the same footprint for memory-scaling design iterations without PCB revision - a confirmed feature across the R5F104Gx series.
R5F104GJAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- 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:
- 34
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104GJAFB#30 FAQ
1.How can I place an order for R5F104GJAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GJAFB#30 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 R5F104GJAFB#30 reliable?
The price and inventory of R5F104GJAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GJAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104GJAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GJAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GJAFB#30?
R5F104GJAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GJAFB#30 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 R5F104GJAFB#30?
For technical support, including R5F104GJAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GJAFB#30 requirements.
6.How does Aetrix verify that R5F104GJAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104GJAFB#30 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 R5F104GJAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104GJAFB#30?
All R5F104GJAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GJAFB#30, 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 R5F104GJAFB#30 part is unused and in its original packaging.
Return procedure for R5F104GJAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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