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Renesas R5F10RG8AFB#70
- Part No.:
- R5F10RG8AFB#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F10RG8AFB#70.pdf
- Description:
- 16BIT MCU RL78/L12 8+2/1 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,456
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Product details
Overview
R5F10RG8AFB#70 from Renesas is an 8 KB flash, 1 KB RAM, 48-pin LFQFP microcontroller in the RL78/L12 family, featuring integrated LCD controller/driver (up to 35 seg × 8 com), 10-bit ADC (10 channels), RTC with calendar/alarm, and ultra-low-power operation (0.64 µA in Halt mode with RTC + LVD). It targets battery-powered LCD display systems such as smart meters and portable medical devices.
For engineers reviewing the R5F10RG8AFB#70 datasheet, R5F10RG8AFB#70 pinout, R5F10RG8AFB#70 application, or R5F10RG8AFB#70 equivalent, key selection criteria include its 48-pin 0.5 mm pitch LFQFP package, 1.6–5.5 V supply range, on-chip LCD bias generation, and support for capacitor-split or internal-boost LCD drive methods - all critical for space-constrained, low-power human-interface designs.
Technical Context
The R5F10RG8AFB#70 implements the 16-bit RL78 CPU core delivering 31 DMIPS at 24 MHz, with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 cycles. It integrates a high-speed on-chip oscillator (±1% accuracy from 1.8–5.5 V and −20°C to +85°C) and supports multiple clock sources including external crystal (X1/X2) and subsystem clock (XT1/XT2).
Its peripheral set includes two CSI interfaces (SPI-compatible), one I²C, one UART, up to eight 16-bit timer channels, DMA controller (2 channels), and safety features compliant with IEC/UL 60730 - including flash CRC, RAM parity check, and illegal memory access detection - enabling functional safety in consumer-grade applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz - enables real-time control with low latency in resource-constrained LCD systems |
| Flash / RAM | 8 KB code flash + 2 KB data flash + 1 KB RAM - sufficient for firmware with background data logging and LCD UI state storage |
| Power Consumption | Halt mode: 0.64 µA (RTC + LVD active); Operating: 62.5 µA/MHz - extends battery life in always-on display applications |
| LCD Support | Up to 35 segments × 8 commons; capacitor-split or internal-boost drive - eliminates external LCD bias ICs and reduces BOM cost |
| ADC | 10-bit resolution, 10 channels, 2.1 µs conversion time, 1.6 V minimum supply - supports direct sensing of battery voltage, temperature, and analog sensors |
| Operating Range | −40°C to +85°C, 1.6–5.5 V supply - suitable for consumer-grade industrial and portable equipment environments |
| Safety Features | CRC for flash, RAM parity, SFR write protection, illegal access detection - meets baseline requirements for IEC 60730 Class B compliance |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, consumer-grade temperature range (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Main system crystal input | Connects to 1–20 MHz crystal for precise timing; required for full-speed operation and RTC calibration |
| P122 / X2 / EXCLK | Main system crystal output / external clock input | Drives crystal; accepts external clock if crystal omitted - enables flexible clock source selection |
| P123 / XT1 | Subsystem crystal input (32.768 kHz) | Feeds low-power RTC and interval timer - essential for accurate timekeeping during deep sleep |
| P126 / CAPL, P127 / CAPH | LCD capacitor terminals | Interface with external capacitors for capacitor-split LCD bias generation - reduces power vs. internal boost |
| VL1–VL4 | LCD voltage supply outputs | Provide programmable LCD bias voltages; support contrast adjustment across 16 steps |
| COM0–COM7, SEG0–SEG35 | LCD common/segment drivers | Direct drive of up to 35 × 8 LCD glass; configurable waveform type (A/B) and blinking control |
| REGC | Voltage regulator decoupling | Must connect to VSS via 0.47–1 µF capacitor - stabilizes internal LDO for reliable low-power operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Halt mode | 0.64 µA with RTC + LVD enabled - enables multi-year battery life in standby with timekeeping |
| Integrated LCD controller/driver | Supports 35 seg × 8 com with capacitor-split, internal-boost, or resistor-divider methods - eliminates external LCD bias IC |
| On-chip debug interface | 1-wire on-chip debug (TOOL0/P40) - enables in-system programming and real-time debugging without JTAG header |
| Data flash with background operation | 2 KB, 1 million erase cycles, 1.8–5.5 V programming - allows non-volatile parameter storage without halting main program |
| 10-bit ADC with internal reference | 10 channels, 2.1 µs conversion, 1.45 V internal reference - enables accurate sensor readings without external reference IC |
| Real-time clock with calendar | Full BCD calendar (year/month/day/hour/min/sec), alarm, and watch correction - supports time-stamped logging and scheduled wake-up |
Applications
| Smart Energy Meter Display | Portable Medical Device UI |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD showing consumption, tariff, and status. IC Role / Device Role / Timing Role: Primary MCU managing LCD refresh, RTC-based billing intervals, ADC-based pulse counting, and low-power sleep scheduling. Use Value: Integrated LCD driver and 0.64 µA Halt mode eliminate external bias circuitry and extend battery life beyond 10 years. |
Use Scenario: Handheld blood glucose monitor or thermometer with LCD readout, button interface, and battery indicator. IC Role / Device Role / Timing Role: System controller handling button scan (KR0–KR3), LCD update, ADC sampling of sensor signal, and RTC timestamping of measurements. Use Value: On-chip 10-bit ADC with internal 1.45 V reference ensures consistent glucose reading accuracy across battery voltage drop. |
| Home Appliance Control Panel | Industrial Sensor Node Display |
|
Use Scenario: Microwave oven or washing machine control panel with multi-segment LCD, keypad, buzzer feedback, and timer functions. IC Role / Device Role / Timing Role: Main UI controller driving LCD, scanning key returns (KR0–KR3), generating buzzer tones (PCLBUZ0/1), and managing cooking timers. Use Value: Programmable buzzer outputs and built-in interval timer simplify tone generation and countdown logic without external components. |
Use Scenario: DIN-rail mounted environmental sensor node displaying temperature/humidity/CO₂ on LCD, powered by long-life Li-SOCl₂ battery. IC Role / Device Role / Timing Role: Low-power data aggregator reading sensors via ADC, updating LCD every 30 seconds, and waking only for measurement cycles. Use Value: 62.5 µA/MHz active current and snooze mode enable >5-year operation on single AA-sized primary cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RFAAFB#70 | 16 KB flash, same 48-pin LFQFP package, identical peripherals and power specs | Required when firmware size exceeds 8 KB - e.g., adding USB CDC, BLE stack, or advanced UI graphics | Select for future-proofing or larger application code footprint while retaining identical PCB layout and LCD interface |
| R5F10RGAGFB#70 | Same 8 KB flash and peripherals, but rated for −40°C to +105°C industrial temperature range | Necessary for deployment in high-ambient environments like HVAC control panels or outdoor utility boxes | Choose when operating ambient exceeds +85°C - no electrical or software changes needed beyond qualification testing |
Compared with R5F10RG8AFB#70, the R5F10RFAAFB#70 provides double flash capacity for complex firmware, while the R5F10RGAGFB#70 extends thermal reliability without altering pinout or peripheral configuration - both preserve design continuity in evolving product variants.
Availability
R5F10RG8AFB#70 is available at Aetrix Electronics and suitable for smart meter displays, portable medical UIs, home appliance control panels, and industrial sensor nodes requiring stable component supply across multi-year production cycles.
Supply support for R5F10RG8AFB#70 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/L12 product line is engineered for ultra-low-power LCD-based applications - integrating display control, sensing, and timing in a single chip to minimize system cost and board area.
FAQ
What is the maximum operating frequency and performance of the R5F10RG8AFB#70?
The R5F10RG8AFB#70 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS. Its 16-bit RL78 core executes 86% of instructions in 1–2 clock cycles, enabling responsive real-time control in LCD-driven applications without external acceleration.
Does the R5F10RG8AFB#70 support external crystals, and what are the valid frequencies?
Yes, the R5F10RG8AFB#70 supports external crystals on pins X1/P121 and X2/P122 for the main system clock (1–20 MHz) and XT1/P123 for the subsystem clock (32.768 kHz). These enable precise RTC operation and stable high-speed execution independent of on-chip oscillator drift.
How does the R5F10RG8AFB#70 manage LCD bias, and what drive methods are supported?
The R5F10RG8AFB#70 integrates an LCD controller supporting three bias methods: capacitor-split (using CAPL/CAPH pins), internal voltage boost (generating VL1–VL4), and external resistor division. This flexibility allows optimization for power, cost, or contrast in diverse LCD glass configurations.
What low-power modes are available on the R5F10RG8AFB#70, and what peripherals remain active?
The R5F10RG8AFB#70 offers Stop mode (0.23 µA, RAM retained) and Halt mode (0.64 µA with RTC + LVD active). In Halt mode, the real-time clock, low-voltage detector, and wakeup interrupts remain functional - enabling time-triggered wake-up without full system restart.
Is the R5F10RG8AFB#70 pin-compatible with other RL78/L12 variants in the same package?
Yes, all 48-pin LFQFP RL78/L12 variants - including R5F10RG8AFB#70, R5F10RFAAFB#70, and R5F10RGAGFB#70 - share identical pinouts and package dimensions. Firmware and PCB layouts are interchangeable across flash size and temperature grade variants.
R5F10RG8AFB#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 26
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 9x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RG8AFB#70 FAQ
1.How can I place an order for R5F10RG8AFB#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RG8AFB#70 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 R5F10RG8AFB#70 reliable?
The price and inventory of R5F10RG8AFB#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RG8AFB#70 is usually 5 days.
3.What payment methods are accepted for R5F10RG8AFB#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RG8AFB#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RG8AFB#70?
R5F10RG8AFB#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RG8AFB#70 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 R5F10RG8AFB#70?
For technical support, including R5F10RG8AFB#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RG8AFB#70 requirements.
6.How does Aetrix verify that R5F10RG8AFB#70 is sourced from the original manufacturer or authorized distributors?
All R5F10RG8AFB#70 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 R5F10RG8AFB#70 meets industry standards.
7.What is the process for return or replacement of R5F10RG8AFB#70?
All R5F10RG8AFB#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RG8AFB#70, 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 R5F10RG8AFB#70 part is unused and in its original packaging.
Return procedure for R5F10RG8AFB#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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