My Inquiry
My Account
Renesas R5F10RJ8AFA#30
- Part No.:
- R5F10RJ8AFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F10RJ8AFA#30.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,320
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10RJ8AFA#30 from Renesas is an 8 KB flash, 1.5 KB RAM, 52-pin LQFP (10 × 10 mm, 0.65 mm pitch) RL78/L12 microcontroller with integrated LCD controller/driver (up to 35 seg × 8 com), 10-bit ADC (10 channels), RTC, 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 R5F10RJ8AFA#30 datasheet, R5F10RJ8AFA#30 pinout, R5F10RJ8AFA#30 application, or R5F10RJ8AFA#30 equivalent, this page delivers verified specifications, validated pin functions, confirmed LCD drive capability (capacitor split/internal boost), real-time clock integration, and direct alternative options for consumer-grade low-power embedded designs.
Technical Context
The R5F10RJ8AFA#30 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 (24 MHz ±1% over voltage/temperature) and supports multiple clock sources including external crystal (X1/X2) and subsystem clock (XT1/XT2).
Its peripheral set includes dual CSI interfaces (SPI-compatible), one I²C, one UART, up to 8-channel 16-bit timer array, DMA (2 channels), and safety features compliant with IEC/UL 60730 - including flash CRC, RAM parity, SFR write protection, and illegal memory access detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz - enables real-time control without external co-processor |
| Flash / RAM | 8 KB code flash + 2 KB data flash + 1.5 KB RAM - sufficient for firmware with background data logging and LCD UI |
| Power Modes | Halt (RTC+LVD): 0.64 µA; Operating: 62.5 µA/MHz - extends battery life in always-on display applications |
| LCD Driver | Up to 35 seg × 8 com; supports capacitor split, internal boost, resistance division - eliminates need for external LCD bias IC |
| ADC | 10-bit, 10-channel, 2.1 µs conversion, 1.6 V min supply - measures battery voltage, temperature, and analog sensors directly |
| Package | 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch - compatible with standard surface-mount assembly and rework processes |
| Temp Range | −40°C to +85°C (Consumer grade A) - qualified for indoor industrial and home appliance environments |
Pinout & Package
52-pin plastic LQFP (10 × 10 mm, 0.65 mm pitch), RoHS-compliant, JEDEC-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 (I/O) | 8-bit general-purpose port with interrupt capability; configurable for CSI00, SCK00, SO00, SI00 |
| P20/P21 | Port 2 (Analog I/O) | ANI0/ANI1 inputs with AVREFP/AVREFM - enables precision ADC measurements with external reference |
| P30–P32 | Port 3 (Timer I/O) | TI01/TO01, TI03/TO03, RTC1HZ output - supports PWM generation and real-time clock signal routing |
| P40–P42 | Port 4 (General I/O) | TOOL0 debug interface, ANI16/ANI17 inputs, TI04/TI05 - provides debug access and additional analog/timer resources |
| P60/P61 | I²C Interface | SCLA0/SDAA0 - connects to EEPROM, temperature sensor, or other I²C peripherals without level shifters |
| P120–P127 | LCD Power & Bias | VL1–VL4, CAPL/CAPH - configures LCD voltage generation method and supplies stable segment/common bias |
| COM0–COM7 | LCD Common Outputs | 8-channel common driver - supports multiplexed LCDs up to 8-com configuration (e.g., 35×8 segments) |
| SEG0–SEG36 | LCD Segment Outputs | 37 dedicated segment outputs - drives full alphanumeric LCDs with backlight control via PCLBUZ0/1 |
| RESET | Active-low Reset Input | Asynchronous reset with POR/LVD supervision - ensures reliable startup under brown-out conditions |
| REGC | Voltage Regulator Decoupling | Connect to VSS via 0.47–1 µF capacitor - stabilizes internal 1.25 V regulator for low-noise LCD operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Halt mode | 0.64 µA with RTC + LVD active - enables multi-year battery life in metering applications |
| Integrated LCD controller/driver | Supports 35 seg × 8 com with capacitor split/internal boost - reduces BOM count by eliminating external bias IC |
| On-chip debug interface | 1-wire 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 - stores calibration data or user settings without halting CPU |
| IEC/UL 60730 safety features | CRC, RAM parity, SFR write protection, illegal access detection - satisfies Class B functional safety requirements |
Applications
| Smart Energy Meter | Portable Medical Display |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD showing consumption, tariff, and status. IC Role / Device Role / Timing Role: Main system controller executing metrology firmware, driving LCD, managing RTC calendar, and logging data to data flash. Use Value: Ultra-low-power Halt mode (0.64 µA) extends 10+ year battery life; integrated LCD driver eliminates external bias circuitry. |
Use Scenario: Handheld blood glucose monitor or pulse oximeter with monochrome LCD and tactile keypad. IC Role / Device Role / Timing Role: Central MCU handling sensor ADC acquisition, key scan (KR0–KR3), buzzer feedback (PCLBUZ0), and LCD refresh. Use Value: 10-bit ADC (10 ch) measures sensor signals directly; key return inputs simplify mechanical keypad interface without external logic. |
| Home Appliance Control Panel | Industrial Sensor Node |
|
Use Scenario: Microwave oven or washing machine control panel with 4-digit LCD, function keys, and buzzer alerts. IC Role / Device Role / Timing Role: Dedicated UI controller managing LCD segments, key returns, buzzer output, and communication with main MCU via UART/I²C. Use Value: Segmented LCD drive (35×8) supports custom character sets; PCLBUZ0/PCLBUZ1 provide programmable tone generation. |
Use Scenario: Wireless environmental sensor node (temp/humidity/pressure) with local LCD readout and periodic wake-up. IC Role / Device Role / Timing Role: Local display and data logger - wakes from Halt mode every 30 sec via RTC alarm, reads sensors, updates LCD, then returns to 0.64 µA sleep. Use Value: Snooze mode enables low-latency wake-up from Stop mode; data flash retains calibration across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power LCD microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RJAAFA#30 | 16 KB flash, same 52-pin LQFP package, identical peripherals and power specs | Requires larger firmware image; suitable when bootloader, OTA, or enhanced feature set needed | Select when >8 KB code space is required without changing PCB layout or LCD timing constraints |
| R5F10RG8AFB#30 | 48-pin LFQFP (7×7 mm, 0.5 mm pitch), 8 KB flash, same core/peripherals but fewer I/O (44 pins vs 48) | Smaller footprint but reduced LCD segment count (max 35×4 com); no P42/P51 timer inputs | Choose for space-constrained designs where 35×4 LCD suffices and board area is critical |
Compared with R5F10RJ8AFA#30, R5F10RJAAFA#30 offers double flash capacity in identical packaging for future-proofing, while R5F10RG8AFB#30 trades pin count and LCD drive flexibility for compactness - neither is pin-compatible, but both share the same RL78/L12 instruction set and peripheral register map.
Availability
R5F10RJ8AFA#30 is available at Aetrix Electronics and suitable for smart energy meters, portable medical displays, home appliance control panels, and industrial sensor nodes requiring stable component supply across long production lifecycles.
Supply support for R5F10RJ8AFA#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/L12 product line is designed specifically for ultra-low-power LCD-based applications - integrating LCD drivers, RTC, and safety features into a single chip to reduce system cost and complexity for consumer and industrial displays.
FAQ
What is the maximum LCD resolution supported by the R5F10RJ8AFA#30?
The R5F10RJ8AFA#30 supports up to 35 segment × 8 common outputs, enabling alphanumeric LCDs with up to 280 distinct segments. This configuration is validated for capacitor split and internal voltage boost methods, and matches the 52-pin package's full I/O allocation for LCD drive without external components.
Does the R5F10RJ8AFA#30 include hardware support for functional safety standards?
Yes, the R5F10RJ8AFA#30 includes IEC/UL 60730-compliant safety features: flash memory CRC calculation, RAM parity error check, SFR write protection, illegal memory access detection, clock frequency detection, and ADC self-test - all implemented in hardware to support Class B certification.
What are the operating voltage and temperature ranges for the R5F10RJ8AFA#30?
The R5F10RJ8AFA#30 operates from 1.6 V to 5.5 V and is rated for −40°C to +85°C (Consumer grade 'A'). Its ultra-low-power modes - including 0.64 µA Halt mode - are guaranteed across this full voltage and temperature range, making it suitable for battery-powered indoor applications.
Can the R5F10RJ8AFA#30 be programmed in-circuit using the TOOL0 pin?
Yes, the R5F10RJ8AFA#30 supports 1-wire on-chip debugging via the TOOL0 pin (P40), enabling in-system programming, breakpoint debugging, and real-time variable monitoring without requiring a dedicated debug header or SWD/JTAG interface.
How does the R5F10RJ8AFA#30 handle analog measurements with its 10-bit ADC?
The R5F10RJ8AFA#30 features a 10-bit successive approximation ADC with 10 input channels, 2.1 µs conversion time, and support for 1.6 V minimum supply. It includes internal 1.45 V reference voltage and on-chip temperature sensor, allowing accurate analog sensing without external references or calibration components.
R5F10RJ8AFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- 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:
- 37
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RJ8AFA#30 FAQ
1.How can I place an order for R5F10RJ8AFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RJ8AFA#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 R5F10RJ8AFA#30 reliable?
The price and inventory of R5F10RJ8AFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RJ8AFA#30 is usually 5 days.
3.What payment methods are accepted for R5F10RJ8AFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RJ8AFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RJ8AFA#30?
R5F10RJ8AFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RJ8AFA#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 R5F10RJ8AFA#30?
For technical support, including R5F10RJ8AFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RJ8AFA#30 requirements.
6.How does Aetrix verify that R5F10RJ8AFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F10RJ8AFA#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 R5F10RJ8AFA#30 meets industry standards.
7.What is the process for return or replacement of R5F10RJ8AFA#30?
All R5F10RJ8AFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RJ8AFA#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 R5F10RJ8AFA#30 part is unused and in its original packaging.
Return procedure for R5F10RJ8AFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10RJ8AFA#30 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
