Renesas R5F104JHAFA#30
- Part No.:
- R5F104JHAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F104JHAFA#30.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104JHAFA#30 from Renesas is a 52-pin LQFP-0.65 mm pitch, industrial-grade (TA = −40 to +85°C) RL78/G14 16-bit MCU with 128 KB flash, 8 KB data flash, 16 KB RAM, 10-bit A/D converter (16 channels), and integrated RTC, LVD, and low-power STOP/HALT/SNOOZE modes - deployed in battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F104JHAFA#30 datasheet, R5F104JHAFA#30 pinout, R5F104JHAFA#30 application, or R5F104JHAFA#30 equivalent, key selection criteria include its 128 KB code flash capacity, 52-pin LQFP package with 0.65 mm pitch, −40 to +85°C industrial temperature rating, and support for background data flash rewriting (BGO) and event-linked peripheral control (ELC).
Technical Context
The R5F104JHAFA#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (@32 MHz high-speed oscillator) to 30.5 µs (@32.768 kHz subsystem clock). It integrates a Data Transfer Controller (DTC) with chain transfer capability and an Event Link Controller (ELC) enabling direct hardware-triggered peripheral activation without CPU intervention.
Its analog subsystem includes a 10-bit A/D converter with internal 1.45 V reference and temperature sensor, plus two 8-bit D/A channels with real-time output function. Power management features include on-chip POR, 14-level LVD with interrupt/reset selection, and ultra-low power consumption of 66 μA/MHz active and 0.60 μA in RTC+LVD-only mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing for real-time control loops. |
| Flash Memory | 128 KB code flash + 8 KB data flash; supports self-programming with boot swapping and flash shield window. |
| RAM | 16 KB on-chip RAM; sufficient for RTOS stacks and buffered communication protocols (UART/LIN/I²C). |
| A/D Converter | 10-bit resolution, 16 input channels, internal 1.45 V reference; eliminates need for external voltage reference in sensor signal conditioning. |
| Operating Voltage | 1.6 V to 5.5 V single supply; allows direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals without level shifters. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD), SNOOZE; extends battery life in intermittent-sensing applications. |
| Package & Pin Count | 52-pin LQFP, 0.65 mm pitch (PLQP0052JA-A); compatible with standard surface-mount assembly and reflow profiles. |
Pinout & Package
Package: 52-pin plastic LQFP, 10 × 10 mm body, 0.65 mm pitch (RENESAS code PLQP0052JA-A). Industrial-grade (D-grade) variant rated for −40 to +85°C ambient operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit channel and timer input; enables asynchronous serial communication and precise timebase capture. |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive channel and timer output; supports full-duplex UART with hardware-triggered timing events. |
| P10–P15 | SPI/I²C/UART peripheral pins (SCK11, SI11, SO11, SDA11, SCL11, SCK20, etc.) | Configurable multi-protocol serial interface group; permits simultaneous SPI master/slave and I²C bus control. |
| P16/P17 | INTP5 / INTP4 / TRDIOC0 / TRDIOA0 / IVCMP0 / IVCMP1 | Dual comparator inputs with programmable reference; enables analog threshold detection without CPU polling. |
| P30/P31 | RTC1HZ / SCK00 / INT P3 / TI03 / TO03 / INTP4 | Real-time clock output and dedicated timer I/O; provides accurate timekeeping and PWM generation for motor/solenoid control. |
| P121/P122 | X1 / X2 / EXCLK | Crystal oscillator inputs for 32.768 kHz RTC and up to 32 MHz main system clock; ensures stable timing across temperature ranges. |
| RESET / REGC / VDD / VSS | Reset input / regulator capacitor / power supply / ground | Standard power and reset interface; REGC requires 0.47–1 µF capacitor to VSS for internal LDO stability. |
Key Features
| Feature | Design Value |
|---|---|
| Background Data Flash Operation (BGO) | Execute program code from flash while rewriting data flash - enables seamless firmware updates and logging without halting application. |
| Event Link Controller (ELC) | Link 19–26 peripheral events (e.g., timer overflow, ADC conversion complete) directly to target functions (e.g., DTC trigger, DAC update) - reduces CPU load and latency. |
| Ultra-Low Power STOP Mode | 0.60 μA current draw with RTC and LVD active - supports years of operation on coin-cell batteries in remote monitoring devices. |
| On-Chip Debug Support | Fully integrated debug interface with SWD/JTAG-compatible access; enables real-time trace, breakpoint, and memory inspection during development. |
| Multi-Voltage I/O Interface | I/O ports configurable for 1.8 V, 2.5 V, or 3 V logic levels - simplifies interconnection with mixed-voltage sensor and communication ICs. |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/CO₂ sensor node transmitting data via UART-to-LoRaWAN gateway. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, calibration, RTC-based wake-up scheduling, and UART framing. Use Value: 0.60 μA STOP mode with RTC extends 10-year battery life; 10-bit A/D and internal temperature sensor reduce BOM cost by eliminating external components. |
Use Scenario: Embedded controller managing fan speed, valve position, and air quality feedback in commercial HVAC units. IC Role / Device Role / Timing Role: Real-time actuator driver using PWM outputs (TAU timers), analog feedback processing (A/D), and LIN bus communication to central unit. Use Value: ELC-triggered DTC transfers move ADC results to RAM without CPU cycles; LIN-capable UART simplifies integration into automotive-grade HVAC networks. |
| Programmable Logic Relay | Energy Meter Front-End |
|
Use Scenario: DIN-rail mounted relay module with configurable I/O mapping, delay timers, and status LED indicators. IC Role / Device Role / Timing Role: Deterministic logic engine implementing ladder logic via RL78's fast interrupt response and timer array unit (TAU). Use Value: HALT mode at 66 μA/MHz enables responsive I/O handling while maintaining low thermal profile; 128 KB flash stores multiple configuration sets and firmware updates. |
Use Scenario: AC energy meter front-end acquiring voltage/current waveforms via shunt/resistive dividers and computing RMS, harmonics, and kWh. IC Role / Device Role / Timing Role: High-precision analog acquisition controller synchronizing 10-bit A/D sampling to zero-crossing detection (via comparator + timer). Use Value: Dual comparators with window mode detect overvoltage/undervoltage thresholds; internal 1.45 V reference ensures consistent A/D accuracy across supply variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104JGAFA#30 | 96 KB flash, 8 KB data flash, 12 KB RAM; identical 52-pin LQFP-0.65 mm package and peripheral set. | Lower memory footprint suits simpler control tasks (e.g., basic timer-based relays) where 128 KB is unnecessary. | Select when firmware size remains under 96 KB and cost optimization is prioritized without sacrificing package or peripheral compatibility. |
| R5F104JLAFA#30 | 192 KB flash, 8 KB data flash, 20 KB RAM; same 52-pin LQFP-0.65 mm package and full peripheral complement. | Supports larger RTOS deployments, OTA firmware updates, and extended data logging buffers in advanced metering or gateway applications. | Choose when future firmware expansion, secure boot partitions, or dual-bank flash updates are required beyond R5F104JHAFA#30 capacity. |
Compared with R5F104JGAFA#30 and R5F104JLAFA#30, the R5F104JHAFA#30 delivers optimal balance of memory headroom (128 KB flash), low-power performance (0.60 μA STOP), and industrial temperature reliability - making it ideal for mid-complexity embedded controllers where scalability and efficiency are both critical.
Availability
R5F104JHAFA#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, programmable logic relays, and energy meter front-ends requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F104JHAFA#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 IoT markets.
The RL78/G14 family is designed for general-purpose embedded control applications demanding ultra-low power, rich analog integration, and robust industrial reliability - targeting sensor systems, appliance controls, and building automation.
FAQ
What is the operating temperature range for the R5F104JHAFA#30?
The R5F104JHAFA#30 is rated for industrial operation from −40°C to +85°C (D-grade). This specification is confirmed in the RL78/G14 datasheet Section 1.2 Ordering Information and applies specifically to the "D" field-of-application suffix encoded in the part number's fourth character position.
Does the R5F104JHAFA#30 support background data flash rewriting (BGO)?
Yes, the R5F104JHAFA#30 supports Background Operation (BGO) for data flash. As documented in Section 1.1 Features, instructions can be executed from program memory while data flash is being rewritten - enabling concurrent application execution and nonvolatile parameter storage.
What package type and pin pitch does the R5F104JHAFA#30 use?
The R5F104JHAFA#30 uses a 52-pin plastic LQFP package with 0.65 mm pitch (RENESAS code PLQP0052JA-A). This is explicitly defined in Table 1-1 List of Ordering Part Numbers (3/5) and confirmed in Section 1.3.6 Pin Configuration for 52-pin products.
How many A/D input channels does the R5F104JHAFA#30 provide?
The R5F104JHAFA#30 provides 16 analog input channels for its 10-bit A/D converter. This count is specified in Section 1.1 Features under "A/D Converter" and correlates with the pin listing in Section 1.3.6, which shows ANI0–ANI19 (excluding reserved channels) mapped across P00–P27 and P120–P147.
Is the R5F104JHAFA#30 pin-compatible with other RL78/G14 52-pin variants?
Yes, all RL78/G14 52-pin LQFP variants - including R5F104JCAFA#30 through R5F104JJAFA#30 - share identical pinouts and package dimensions (PLQP0052JA-A). This uniformity is verified across Sections 1.3.5 and 1.3.6, where pin configurations are shown as common to the 52-pin product group regardless of flash/RAM configuration.
R5F104JHAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 38
- 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):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104JHAFA#30 FAQ
1.How can I place an order for R5F104JHAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104JHAFA#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 R5F104JHAFA#30 reliable?
The price and inventory of R5F104JHAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104JHAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104JHAFA#30?
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R5F104JHAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104JHAFA#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 R5F104JHAFA#30?
For technical support, including R5F104JHAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104JHAFA#30 requirements.
6.How does Aetrix verify that R5F104JHAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104JHAFA#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 R5F104JHAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104JHAFA#30?
All R5F104JHAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104JHAFA#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 R5F104JHAFA#30 part is unused and in its original packaging.
Return procedure for R5F104JHAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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