Renesas R5F10RFCAFP#10
- Part No.:
- R5F10RFCAFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F10RFCAFP#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,560
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10RFCAFP#10 from Renesas is a 44-pin LQFP 16 KB flash RL78/L12 16-bit microcontroller with integrated LCD controller/driver, 2 KB data flash, 1 KB RAM, and ultra-low-power operation (62.5 μA/MHz active, 0.64 μA RTC+LVD mode), designed for battery-powered LCD display applications such as smart meters and portable medical devices.
For engineers reviewing the R5F10RFCAFP#10 datasheet, R5F10RFCAFP#10 pinout, R5F10RFCAFP#10 application, or R5F10RFCAFP#10 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, 32-segment × 4-common LCD drive capability, 10-bit ADC with 1.6 V support, and IEC 60730-compliant safety features including RAM parity and flash CRC.
Technical Context
The R5F10RFCAFP#10 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It supports dual-clock domains: high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and subsystem clock (32.768 kHz crystal).
Its integrated LCD controller supports capacitor split, internal boost, and resistance division methods with 16-step contrast control and blinking function. The device includes two DMA channels, UART/I²C/CSI interfaces, and an 8-channel timer array with RTC, interval timer, and windowed watchdog.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU delivering 31 DMIPS at 24 MHz |
| Flash Memory | 16 KB code flash with 1 KB block erase and self-programming capability |
| Data Flash | 2 KB background-operable data flash rated for 1 million erase cycles |
| RAM | 1 KB SRAM with back-up retention in all low-power modes |
| Operating Voltage | 1.6 V to 5.5 V single supply enabling direct battery operation |
| Low-Power Modes | Halt mode draws 0.64 μA with RTC + LVD active; Stop mode draws 0.23 μA (RAM retained) |
| LCD Drive | Supports up to 39 seg × 4 com or 35 seg × 8 com using capacitor split or internal boost method |
Pinout & Package
Package: 44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, JEDEC standard PLQP0044GC-A footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P12/SO00/TxD0/TOOLTxD/KR0/SEG30 | Multi-function port pin | Primary UART transmit output; also serves as LCD segment 30 and key return 0 |
| P11/SI00/RxD0/TOOLRxD/KR1/SEG29 | Multi-function port pin | Primary UART receive input; also serves as LCD segment 29 and key return 1 |
| P10/SCK00/TI07/TO07/KR2/SEG28 | Multi-function port pin | SPI clock input/output; also timer input/output and LCD segment 28 |
| P140/TO00/PCLBUZ0/KR3/SEG27 | Multi-function port pin | Timer output / programmable buzzer / key return 3 / LCD segment 27 |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons; enables 32-seg × 4-com or 28-seg × 8-com configurations |
| VL1–VL4 | LCD power supply pins | Provide bias voltages for LCD segments; configurable for capacitor-split or internal boost operation |
| REGC | Voltage regulator decoupling | Must be connected to VSS via 0.47–1 μF capacitor for stable internal regulator operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 62.5 μA/MHz active current enables >10-year battery life in intermittent-read metering applications |
| Integrated LCD controller | Eliminates external driver IC; supports waveform A/B, blinking, and 16-step contrast adjustment |
| IEC 60730 compliance | Includes hardware CRC engine, RAM parity check, SFR write protection, and illegal access detection |
| On-chip debug interface | Single-wire on-chip debug (SWD) enables full real-time debugging without dedicated debug pins |
| Analog subsystem | 10-bit ADC with 10 channels, 2.1 μs conversion time, and internal 1.45 V reference for sensor interfacing |
Applications
| Smart Energy Meters | Portable Medical Devices |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD display and tamper detection. IC Role / Device Role / Timing Role: Main system controller managing metrology calculations, LCD refresh, real-time clock, and secure communication. Use Value: Integrated LCD driver reduces BOM cost by eliminating external driver IC; 0.64 μA halt mode extends battery life beyond 10 years. | Use Scenario: Handheld blood glucose monitor or pulse oximeter with alphanumeric LCD and button interface. IC Role / Device Role / Timing Role: Sensor signal acquisition, LCD display control, user input scanning, and low-power sleep management. Use Value: 10-bit ADC with 1.6 V minimum supply enables direct connection to low-voltage sensors; KR inputs simplify keypad matrix decoding. |
| Home Appliance Control Panels | Industrial HMI Displays |
Use Scenario: Microwave oven or washing machine control panel with 4-digit LCD and touch-sensitive keys. IC Role / Device Role / Timing Role: Real-time UI rendering, key scan, buzzer feedback, and appliance logic execution. Use Value: PCLBUZ0/1 outputs generate audible tones without external driver; built-in interval timer manages precise UI timing. | Use Scenario: Panel-mounted temperature/humidity display in factory automation with environmental monitoring. IC Role / Device Role / Timing Role: Sensor data aggregation, LCD update, serial communication (UART/I²C), and watchdog supervision. Use Value: Dual clock domains allow independent RTC accuracy and fast CPU response; 1.6–5.5 V operation accommodates wide industrial supply rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RFAAFP#10 | Same 44-pin LQFP package but with 8 KB flash and identical peripherals | Lower memory capacity suits simpler UIs or firmware with smaller footprint | Select when application requires <12 KB code space and lower cost is prioritized |
| R5F10RFCGFP#10 | Identical 16 KB flash and peripherals but rated for −40°C to +105°C industrial temperature range | Required for extended-temperature environments like factory floors or automotive cabins | Select when operating ambient exceeds +85°C or IEC 60730 Class B certification is mandated |
Compared with R5F10RFCAFP#10, R5F10RFAAFP#10 offers reduced flash at lower cost for less complex displays, while R5F10RFCGFP#10 provides extended temperature range and industrial qualification-neither is pin-compatible without layout revision due to differing thermal and reliability certifications.
Availability
R5F10RFCAFP#10 is available at Aetrix Electronics and suitable for smart energy meters, portable medical devices, and home appliance control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10RFCAFP#10 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 engineered for ultra-low-power LCD-based applications, integrating high-efficiency CPU, on-chip LCD driver, and functional safety features to reduce system-level BOM and power consumption.
FAQ
What is the maximum LCD segment count supported by the R5F10RFCAFP#10?
The R5F10RFCAFP#10 supports up to 35 segments × 8 commons or 39 segments × 4 commons depending on configuration. Its LCD controller implements capacitor split, internal voltage boost, and resistance division methods, enabling flexible display sizing without external components. This capability is confirmed in the RL78/L12 datasheet Section 1.1 under "LCD Controller/Driver" and verified in Table 1-1 for the R5F10RFC series.
Does the R5F10RFCAFP#10 include hardware support for functional safety standards?
Yes, the R5F10RFCAFP#10 includes multiple IEC 60730-compliant safety features: flash memory CRC calculation, RAM parity error checking, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test. These are implemented in hardware and documented in Section 1.1 "Safety Features" of the R01DS0157EJ0223 datasheet.
What is the operating voltage range and low-power performance of the R5F10RFCAFP#10?
The R5F10RFCAFP#10 operates from 1.6 V to 5.5 V and achieves 62.5 μA/MHz active current, 0.64 μA in Halt mode (RTC + LVD enabled), and 0.23 μA in Stop mode (RAM retained). These values are measured per the conditions specified in Section 1.1 "Ultra-Low Power Technology" of the official Renesas datasheet R01DS0157EJ0223.
Which communication interfaces are available on the R5F10RFCAFP#10?
The R5F10RFCAFP#10 integrates one UART (7-/8-/9-bit), one I²C multi-master interface, two CSI (Simplified SPI) channels, and one LIN interface. All are accessible via multiplexed GPIO pins and support peripheral I/O redirection. Interface specifications-including clock rates, data widths, and interrupt capabilities-are detailed in Section 1.1 "Multiple Communication Interfaces" of the R01DS0157EJ0223 datasheet.
What package type and pin count does the R5F10RFCAFP#10 use?
The R5F10RFCAFP#10 uses a 44-pin plastic LQFP package (10 × 10 mm, 0.8 mm pitch), identified by the "FP" suffix and standardized as PLQP0044GC-A. This is explicitly defined in Figure 1-1 and Table 1-1 of the R01DS0157EJ0223 datasheet, confirming mechanical compatibility with standard 44-pin LQFP footprints.
R5F10RFCAFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 22
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 7x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RFCAFP#10 FAQ
1.How can I place an order for R5F10RFCAFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RFCAFP#10 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 R5F10RFCAFP#10 reliable?
The price and inventory of R5F10RFCAFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RFCAFP#10 is usually 5 days.
3.What payment methods are accepted for R5F10RFCAFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RFCAFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RFCAFP#10?
R5F10RFCAFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RFCAFP#10 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 R5F10RFCAFP#10?
For technical support, including R5F10RFCAFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RFCAFP#10 requirements.
6.How does Aetrix verify that R5F10RFCAFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F10RFCAFP#10 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 R5F10RFCAFP#10 meets industry standards.
7.What is the process for return or replacement of R5F10RFCAFP#10?
All R5F10RFCAFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RFCAFP#10, 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 R5F10RFCAFP#10 part is unused and in its original packaging.
Return procedure for R5F10RFCAFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10RFCAFP#10 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…

