My Inquiry
My Account
Renesas R5F10RJAAFA#V0
- Part No.:
- R5F10RJAAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F10RJAAFA#V0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,935
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10RJAAFA#V0 from Renesas Electronics is a 16-bit RL78/L12 microcontroller with integrated LCD controller/driver, 16 KB flash memory, 2 KB data flash, and 1 KB RAM, operating from 1.6 V to 5.5 V. It delivers 31 DMIPS at 24 MHz, consumes only 0.64 µA in RTC+LVD halt mode, and supports up to 35 seg × 8 com LCD drive for battery-powered consumer instrumentation.
For engineers reviewing the R5F10RJAAFA#V0 datasheet, R5F10RJAAFA#V0 pinout, R5F10RJAAFA#V0 application, or R5F10RJAAFA#V0 equivalent, key selection criteria include ultra-low-power operation across voltage ranges, on-chip LCD bias generation (capacitor split/internal boost), 10-channel 10-bit ADC with 1.6 V support, and IEC 60730-compliant safety features for Class B appliance control.
Technical Context
The R5F10RJAAFA#V0 implements a Harvard-architecture 16-bit RL78 CPU core with 3-stage pipeline, executing 86% of instructions in 1–2 clock cycles. It integrates a high-speed on-chip oscillator (24 MHz ±1% over −20°C to +85°C) and low-speed subsystem clock (32.768 kHz crystal or internal 15 kHz oscillator) for independent RTC and power management.
Its peripheral set includes an 8-channel timer array unit with real-time clock (full calendar + alarm + watch correction), two DMA channels, UART/I²C/CSI interfaces, and a dedicated LCD controller supporting waveform A/B, 16-step contrast adjustment, and blinking-configured via register-controlled segment/com output mapping without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU delivering 31 DMIPS at 24 MHz; 86% instructions execute in 1–2 cycles |
| Memory | 16 KB code flash (1 KB blocks), 2 KB data flash (1M erase cycles), 1 KB RAM with backup retention |
| Power | 1.6 V to 5.5 V supply; 0.64 µA halt current (RTC + LVD enabled); 62.5 µA/MHz active current |
| LCD Drive | Supports 35 seg × 8 com or 39 seg × 4 com; capacitor split, internal boost, or resistor division methods |
| ADC | 10-bit resolution, 10 channels, 2.1 µs conversion time, operational down to 1.6 V reference |
| Safety | IEC/UL 60730 compliance: flash CRC, RAM parity check, SFR write protection, illegal access detection |
| Package | 52-pin LQFP (10 × 10 mm, 0.65 mm pitch), RoHS-compliant, consumer-grade (−40°C to +85°C) |
Pinout & Package
52-pin plastic LQFP (10 × 10 mm, 0.65 mm pitch) with exposed pad not present; requires REGC-to-VSS decoupling capacitor (0.47–1 µF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00 | Serial Clock Input/Output | Primary CSI00 interface clock; configurable as timer input TI07 or output TO07 |
| P11/SI00/RxD0 | Serial Data Input / UART Receive | Dual-function pin for CSI00 data input or UART0 receive; also serves as INTP2 interrupt source |
| P12/SO00/TxD0 | Serial Data Output / UART Transmit | CSI00 data output or UART0 transmit; supports TOOL interface (TOOLTxD) and KR0 key return |
| P30/TI01/TO01 | Timer Input/Output | General-purpose 16-bit timer channel; also drives LCD segment SEG19 |
| P60/SCLA0 | I²C Clock Line | Open-drain I²C bus clock; doubles as LCD segment SEG21 output |
| P140/TO00/PCLBUZ0 | Timer Output / Buzzer Clock | Programmable buzzer output or timer channel 0 output; also functions as LCD segment SEG27 and KR3 key return |
| COM0–COM3 | LCD Common Outputs | Four dedicated common electrode drivers; support multiplexed LCD bias generation |
| VL1–VL4 | LCD Voltage Supply | Four independent LCD bias rails; enable flexible voltage division or capacitor-split LCD drive topologies |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.64 µA halt mode (RTC + LVD active) enables multi-year battery life in portable meters |
| Integrated LCD controller | Eliminates external bias ICs; supports 35×8-segment drive with programmable contrast and blink timing |
| On-chip debug interface | Single-wire on-chip debug (TOOL0/P40) enables in-system programming and real-time trace without JTAG header |
| Robust analog subsystem | 10-bit ADC operates down to 1.6 V supply; includes internal 1.45 V reference and on-chip temperature sensor |
| Functional safety support | Built-in CRC engine, RAM parity, and memory protection registers reduce certification effort for IEC 60730 Class B |
| Flexible clock system | Independent high-speed (24 MHz) and low-speed (32.768 kHz) clocks allow precise RTC operation during deep sleep |
Applications
| Smart Energy Meters | Home Appliance Control Panels |
|---|---|
Use Scenario: Battery-backed electricity/water/gas meter with segmented LCD display and tamper detection. IC Role / Device Role / Timing Role: Main system controller managing metrology interface, LCD refresh, RTC-based billing intervals, and low-power wake-up from sensor events. Use Value: 0.64 µA halt current extends battery life beyond 10 years; integrated LCD driver reduces BOM cost by eliminating external bias IC and resistors. |
Use Scenario: Microwave oven or washing machine front-panel with 4-digit numeric LCD, keypad scan, and motor control logic. IC Role / Device Role / Timing Role: Primary UI controller handling key scanning (KR0–KR3), LCD update, buzzer feedback (PCLBUZ0/1), and safety-critical interlock monitoring. Use Value: On-chip 10-bit ADC reads thermistor and voltage sensors directly; IEC 60730 features simplify Class B compliance for household appliance certification. |
| Portable Medical Devices | Industrial Panel Meters |
Use Scenario: Handheld blood glucose monitor or pulse oximeter with LCD readout, button interface, and battery management. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor signal chain (ADC), LCD display, button debouncing, and low-power sleep between measurements. Use Value: 1.6 V minimum operating voltage allows direct use of single-cell Li-ion or alkaline batteries; internal voltage boost enables LCD operation even at low battery voltage. |
Use Scenario: DIN-rail mounted process indicator displaying analog input (4–20 mA) or digital sensor data on 4-line LCD. IC Role / Device Role / Timing Role: Dedicated display controller interfacing with external ADC or communication IC (e.g., RS-485 transceiver), updating LCD at fixed intervals with RTC-synchronized timestamps. Use Value: 35×8 segment capability supports custom alphanumeric characters; 24 MHz CPU handles real-time scaling and linearization without external co-processor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RJCAFA#V0 | Same 52-pin LQFP package and 16 KB flash, but with 32 KB code flash option and identical peripherals | Targeted at designs requiring larger firmware footprint or future firmware expansion headroom | Select R5F10RJCAFA#V0 when bootloader, OTA updates, or enhanced feature sets demand >16 KB flash |
| R5F10RFAAFA#V0 | 44-pin LQFP variant with same 16 KB flash, 2 KB data flash, and core peripherals but fewer I/O (29 vs. 37) and reduced LCD capacity (22 seg × 8 com) | Suitable for simpler UIs with smaller displays or lower pin-count layouts | Choose R5F10RFAAFA#V0 for cost-sensitive, space-constrained designs where 44-pin footprint and reduced LCD drive meet requirements |
Compared with R5F10RJAAFA#V0, R5F10RJCAFA#V0 offers scalable flash while maintaining pin compatibility, whereas R5F10RFAAFA#V0 trades pin count and LCD capacity for compactness-enabling layout reuse only within its 44-pin constraint.
Availability
R5F10RJAAFA#V0 is available at Aetrix Electronics and suitable for smart energy meters, home appliance control panels, and portable medical devices requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F10RJAAFA#V0 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 solutions for automotive, industrial, and IoT markets.
The RL78/L12 product line targets ultra-low-power LCD-based applications such as consumer appliances and portable instrumentation, integrating LCD drivers, safety features, and extended voltage range operation into a single chip.
FAQ
What is the maximum operating frequency and power consumption of the R5F10RJAAFA#V0?
The R5F10RJAAFA#V0 operates at up to 24 MHz with a high-speed on-chip oscillator, delivering 31 DMIPS. Its active power consumption is 62.5 µA/MHz, and it achieves 0.64 µA in halt mode with RTC and LVD enabled-making it ideal for battery-powered LCD applications where runtime and wake-up latency are critical.
Does the R5F10RJAAFA#V0 support LCD drive without external components?
Yes, the R5F10RJAAFA#V0 integrates a full LCD controller/driver supporting capacitor split, internal voltage boost, and resistance division methods. It drives up to 35 segments × 8 commons directly using VL1–VL4 bias rails and COM0–COM3 outputs-eliminating need for external LCD bias ICs or discrete charge pumps in most implementations.
What safety certifications does the R5F10RJAAFA#V0 support out of the box?
The R5F10RJAAFA#V0 includes hardware-level safety features aligned with IEC/UL 60730 Class B requirements: flash memory CRC calculation, RAM parity error detection, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test-reducing software certification burden for appliance and industrial control applications.
Can the R5F10RJAAFA#V0 operate from a single 1.8 V battery?
Yes, the R5F10RJAAFA#V0 supports operation from 1.6 V to 5.5 V. At 1.8 V, it maintains full functionality including 10-bit ADC operation (with internal 1.45 V reference), RTC, and LCD drive via capacitor split method-enabling direct integration with single-cell lithium or NiMH batteries without voltage regulation overhead.
How many I/O pins and LCD segments does the R5F10RJAAFA#V0 provide?
The R5F10RJAAFA#V0 provides 37 total I/O pins in its 52-pin LQFP package, with 11 pins dedicated to LCD drive. It supports up to 35 segment × 8 common or 39 segment × 4 common configurations, enabling flexible alphanumeric or custom symbol displays for consumer and industrial UIs.
R5F10RJAAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 16KB (16K 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:
R5F10RJAAFA#V0 FAQ
1.How can I place an order for R5F10RJAAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RJAAFA#V0 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 R5F10RJAAFA#V0 reliable?
The price and inventory of R5F10RJAAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RJAAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F10RJAAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RJAAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RJAAFA#V0?
R5F10RJAAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RJAAFA#V0 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 R5F10RJAAFA#V0?
For technical support, including R5F10RJAAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RJAAFA#V0 requirements.
6.How does Aetrix verify that R5F10RJAAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F10RJAAFA#V0 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 R5F10RJAAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F10RJAAFA#V0?
All R5F10RJAAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RJAAFA#V0, 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 R5F10RJAAFA#V0 part is unused and in its original packaging.
Return procedure for R5F10RJAAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10RJAAFA#V0 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…
