My Inquiry
My Account
Renesas R5F10RJ8GFA#30
- Part No.:
- R5F10RJ8GFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F10RJ8GFA#30.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,683
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10RJ8GFA#30 from Renesas is an 8 KB flash, 1.5 KB RAM, 52-pin LQFP microcontroller in the RL78/L12 family, featuring integrated LCD controller/driver (up to 35 seg × 8 com), 10-bit ADC (10 channels), real-time clock with calendar, and ultra-low-power operation (0.64 µA in RTC+LVD mode). It targets battery-powered LCD display applications such as smart meters, thermostats, and industrial HMI panels.
For engineers reviewing the R5F10RJ8GFA#30 datasheet, R5F10RJ8GFA#30 pinout, R5F10RJ8GFA#30 application, or R5F10RJ8GFA#30 equivalent, key selection criteria include its 52-pin 0.65 mm pitch LQFP package, industrial temperature range (−40°C to +105°C), on-chip LCD drive capability with capacitor split/internal boost methods, and support for I²C, UART, and simplified SPI interfaces.
Technical Context
The R5F10RJ8GFA#30 implements the 16-bit RL78 CPU core delivering 31 DMIPS at 24 MHz, with 86% of instructions executed in 1–2 clock cycles and hardware multiply/accumulate support. Its low-power architecture includes multiple sleep modes-Stop (0.23 µA), Halt (0.64 µA with RTC+LVD), and Snooze-with 62.5 µA/MHz active current.
It integrates a full-featured LCD controller supporting waveform types A/B, 16-step contrast adjustment, blinking, and three drive methods (capacitor split, internal voltage boost, resistance division). The analog subsystem includes a 10-bit ADC with 2.1 µs conversion time, internal 1.45 V reference, and on-chip temperature sensor-all operable down to 1.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz, Harvard architecture with 3-stage pipeline |
| Flash / Data Flash / RAM | 8 KB code flash, 2 KB data flash (1M erase cycles), 1.5 KB RAM with backup retention |
| Operating Voltage | 1.6 V to 5.5 V single supply-enables direct battery operation (e.g., 2×AA or Li-ion) |
| Low-Power Modes | Halt mode draws 0.64 µA with RTC + LVD active; Stop mode draws 0.23 µA (RAM retained) |
| LCD Drive Capability | Up to 35 segments × 8 commons; supports capacitor split (0.12 µA) and internal boost (0.63 µA @ 3.0 V) |
| Analog Peripherals | 10-channel 10-bit ADC (2.1 µs conversion), internal 1.45 V reference, on-chip temperature sensor |
| Communication Interfaces | 1× I²C multi-master, 2× simplified SPI (CSI), 1× UART (7–9 bit), 1× LIN |
Pinout & Package
Package: 52-pin plastic LQFP (10 × 10 mm, 0.65 mm pitch), industrial-grade (−40°C to +105°C), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 I/O | 8-bit general-purpose port with interrupt, timer, serial, and LCD segment functions |
| P20/P21 | ADC inputs / AVREFP/AVREFM | Analog input channels with dedicated reference voltage pins for precision measurement |
| P30–P32 | Timer I/O / RTC1HZ / INTP3–INTP4 | Support real-time clock output (1 Hz), timer capture/compare, and external interrupts |
| P40–P42 | Tool interface / ADC / Timer | Includes on-chip debug (TOOL0), analog inputs (ANI16–ANI18), and timer I/O (TI04–TI05) |
| P50/P51 | Interrupt / Timer I/O | INTP5 and TI06/TO06 enable additional event-triggered wake-up and timing control |
| P60/P61 | I²C interface (SCLA0/SDAA0) | Dedicated hardware I²C bus supporting multi-master communication |
| P70/P71 | Key return (KR0/KR1) | Scan inputs for keypad matrix interfacing without external logic |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons; configurable for 4- or 8-common multiplexing |
| SEG0–SEG36 | LCD segment outputs | 37 dedicated segment drivers supporting up to 35×8 or 39×4 LCD configurations |
| VL1–VL4 | LCD power supply rails | Independent bias voltage outputs for LCD contrast optimization and low-current drive |
| CAPL/CAPH | LCD capacitor terminals | Connect external capacitors for capacitor-split LCD drive method (low quiescent current) |
| REGC | Voltage regulator decoupling | Must be connected to VSS via 0.47–1 µF capacitor for stable internal LDO operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LCD operation | 0.12 µA LCD current using capacitor-split method enables multi-year battery life in portable displays |
| Integrated RTC with calendar | Full BCD calendar (year/month/day/hour/min/sec) + alarm + watch correction eliminates external RTC IC |
| Hardware CRC engine | On-the-fly flash memory CRC calculation supports IEC/UL 60730 Class B functional safety compliance |
| Self-programmable flash | Background data flash writes with flash shield window prevent unintended overwrites during runtime |
| 5V-tolerant GPIO | All general-purpose I/O pins tolerate 5 V regardless of VDD level-simplifies mixed-voltage system design |
| Peripheral I/O redirection | PIOR register enables dynamic remapping of serial, timer, and interrupt functions to alternate pins |
Applications
| Smart Energy Meter Display | Industrial Thermostat HMI |
|---|---|
|
Use Scenario: Battery-powered electricity/gas/water meter with segmented LCD showing consumption, tariff, and status. IC Role / Device Role / Timing Role: Primary MCU managing LCD refresh, real-time billing timestamping, tamper detection, and low-power wake-up via pulse input. Use Value: Integrated LCD driver and 0.64 µA Halt mode extend CR2032 battery life beyond 10 years without external components. |
Use Scenario: Wall-mounted HVAC controller with 4-digit LCD, push-button interface, and temperature sensing. IC Role / Device Role / Timing Role: System controller handling keypad scanning (KR0–KR3), ADC-based NTC reading, RTC-scheduled setpoint changes, and LCD update. Use Value: On-chip key return and 10-bit ADC eliminate external scan logic and signal conditioning, reducing BOM count by ≥3 components. |
| Portable Medical Device Display | Appliance Control Panel |
|
Use Scenario: Handheld blood glucose monitor or pulse oximeter with monochrome LCD and button interface. IC Role / Device Role / Timing Role: Safety-critical controller executing IEC 60730 self-tests (RAM parity, flash CRC, ADC self-test) while driving LCD and managing USB/UART diagnostics. Use Value: Hardware safety features certified for Class B compliance reduce functional safety validation effort and certification cost. |
Use Scenario: Microwave oven or washing machine control panel with 8-segment LCD, rotary encoder, and relay drivers. IC Role / Device Role / Timing Role: Main UI processor handling encoder input (INTP0–INTP7), buzzer output (PCLBUZ0/1), timer-based cooking cycles, and LCD contrast adjustment. Use Value: Programmable clock/buzzer outputs and 16-step LCD contrast control enable precise audio feedback and display optimization across ambient lighting conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RJAGFA#30 | 16 KB flash, same 52-pin LQFP package, identical peripherals and pinout | Requires larger firmware image; suitable when bootloader or OTA updates demand extra code space | Select R5F10RJAGFA#30 if future firmware growth exceeds 8 KB or dual-bank updates are needed. |
| R5F10RJCGFA#30 | 32 KB flash, same package and peripheral set; shares identical RAM (1.5 KB) and data flash (2 KB) | Targeted at complex UIs with graphics acceleration or protocol stacks (e.g., Modbus RTU + BLE host) | Choose R5F10RJCGFA#30 only when application logic, middleware, or security libraries exceed 16 KB footprint. |
Compared with R5F10RJ8GFA#30, the R5F10RJAGFA#30 and R5F10RJCGFA#30 offer scalable flash capacity within identical industrial-temperature 52-pin LQFP packaging and pin-compatible peripheral mapping-enabling hardware reuse across product tiers without PCB redesign.
Availability
R5F10RJ8GFA#30 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, portable medical devices, and appliance control panels requiring stable component supply across extended product lifecycles.
Supply support for R5F10RJ8GFA#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 delivers true low-power MCUs optimized for LCD-based human interface applications-integrating display drivers, RTC, and safety features to minimize external components and power consumption.
FAQ
What is the maximum operating frequency and performance of the R5F10RJ8GFA#30?
The R5F10RJ8GFA#30 operates at up to 24 MHz using its high-speed on-chip oscillator with ±1% accuracy across 1.8–5.5 V and −20°C to 85°C. It delivers 31 DMIPS of processing performance, and 86% of instructions execute in just 1–2 clock cycles due to its optimized 3-stage pipeline and CISC architecture.
Does the R5F10RJ8GFA#30 support industrial temperature range and what is its qualification grade?
Yes, the R5F10RJ8GFA#30 is qualified for industrial operation from −40°C to +105°C (denoted by the 'G' suffix in the part number). It meets Renesas' industrial reliability standards including AEC-Q100 stress testing and long-term stability requirements for factory automation and energy infrastructure applications.
How does the LCD controller in the R5F10RJ8GFA#30 reduce external component count?
The R5F10RJ8GFA#30 integrates a full LCD controller/driver supporting up to 35×8 segments, three drive methods (capacitor split, internal boost, resistance division), waveform A/B selection, 16-step contrast control, and blinking-all without external bias generators or charge pumps. This eliminates typically 4–6 discrete components in comparable designs.
What safety features does the R5F10RJ8GFA#30 include for IEC 60730 compliance?
The R5F10RJ8GFA#30 includes hardware CRC calculation for flash memory, RAM parity error checking, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test-collectively enabling Class B compliance for household appliances and industrial controls per IEC/UL 60730.
Can the R5F10RJ8GFA#30 operate from a single 3.0 V coin cell battery?
Yes-the R5F10RJ8GFA#30 operates from 1.6 V to 5.5 V, making it compatible with standard 3.0 V CR2032 batteries. In Halt mode with RTC and LVD enabled, it draws only 0.64 µA, enabling >10-year battery life in typical LCD display applications with periodic wake-ups.
R5F10RJ8GFA#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RJ8GFA#30 FAQ
1.How can I place an order for R5F10RJ8GFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RJ8GFA#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 R5F10RJ8GFA#30 reliable?
The price and inventory of R5F10RJ8GFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RJ8GFA#30 is usually 5 days.
3.What payment methods are accepted for R5F10RJ8GFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RJ8GFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RJ8GFA#30?
R5F10RJ8GFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RJ8GFA#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 R5F10RJ8GFA#30?
For technical support, including R5F10RJ8GFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RJ8GFA#30 requirements.
6.How does Aetrix verify that R5F10RJ8GFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F10RJ8GFA#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 R5F10RJ8GFA#30 meets industry standards.
7.What is the process for return or replacement of R5F10RJ8GFA#30?
All R5F10RJ8GFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RJ8GFA#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 R5F10RJ8GFA#30 part is unused and in its original packaging.
Return procedure for R5F10RJ8GFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10RJ8GFA#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…
