Renesas R5F10RLCAFB#30
- Part No.:
- R5F10RLCAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10RLCAFB#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,510
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Product details
Overview
R5F10RLCAFB#30 from Renesas is a 64-pin LFQFP-packaged 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller/driver (up to 39 seg × 8 com), and ultra-low-power operation (0.64 µA in RTC+LVD halt mode). It delivers 31 DMIPS at 24 MHz and supports consumer-grade operation from −40°C to +85°C.
For engineers reviewing the R5F10RLCAFB#30 datasheet, R5F10RLCAFB#30 pinout, R5F10RLCAFB#30 application, or R5F10RLCAFB#30 equivalent, key selection criteria include its on-chip LCD drive capability, 1.6–5.5 V wide supply range, integrated RTC with calendar/alarm, 10-bit ADC (10 channels), and support for snooze mode in battery-powered display interfaces.
Technical Context
The R5F10RLCAFB#30 implements a Harvard-architecture 16-bit RL78 CPU core with 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles. It integrates a high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and supports external crystal inputs (X1/X2, XT1/XT2) for main and subsystem clocks.
Its peripheral set includes an 8-channel timer array, UART, two CSI (SPI-compatible) interfaces, I²C, DMA (2 channels), and a full-featured LCD controller supporting capacitor split, internal boost, and resistance division methods - all optimized for low-voltage, low-power segment-based displays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU with 31 DMIPS @ 24 MHz; CISC Harvard architecture with 3-stage pipeline |
| Memory | 32 KB code flash (1 KB blocks), 2 KB data flash (1M erase cycles), 1.5 KB RAM with backup retention |
| Power | 1.6–5.5 V supply; 0.64 µA halt current (RTC + LVD enabled); 62.5 µA/MHz active current |
| LCD Drive | Supports up to 39 segments × 8 commons; selectable capacitor split, internal boost, or resistor division method |
| Analog | 10-bit ADC with 10 input channels, 2.1 µs conversion time, internal 1.45 V reference, and on-chip temperature sensor |
| Timers & RTC | 8-channel 16-bit timer array, full-calendar RTC with alarm/watch correction, 12-bit interval timer, 15 kHz windowed watchdog |
| Interfaces | 1× UART (7–9 bit), 2× CSI (SPI-compatible), 1× I²C, 2-channel DMA, 1-wire on-chip debug |
Pinout & Package
Package: 64-pin LFQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, consumer-grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 I/O | 8-bit general-purpose CMOS port with interrupt capability and peripheral I/O redirection |
| P20/P21 | Analog Input / Reference | ANI0/ANI1 analog inputs with AVREFP/AVREFM reference pins for ADC operation |
| P30–P32 | Timer I/O / RTC | TI01/TO01, TI03/TO03, and RTC1HZ output for timing and real-time clock functions |
| P60/P61 | I²C Interface | SCLA0/SDAA0 pins for standard-mode I²C communication with slave addressing |
| P140/P141 | LCD Segment / Buzzer | SEG27/SEG26 outputs with programmable clock/buzzer function (PCLBUZ0/PCLBUZ1) |
| COM0–COM7 | LCD Common Outputs | 8 dedicated common-line drivers supporting multiplexed LCD bias control |
| VDD/EVDD, VSS/EVSS | Power/Ground | Dual power domains: EVDD/EVSS for noise-sensitive analog/LCD circuitry; VDD/VSS for digital core |
| X1/X2, XT1/XT2 | Clock Inputs | Crystal oscillator connections for main system clock (X1/X2) and subsystem clock (XT1/XT2) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Halt Mode | 0.64 µA consumption with RTC and LVD active-enables multi-year battery life in portable displays |
| Integrated LCD Controller | Configurable for 35 seg × 8 com or 39 seg × 4 com; supports contrast adjustment (16 steps) and blinking |
| Self-Programming Flash | On-chip single-voltage flash with shield window protection; enables field firmware updates without external HV |
| Safety Compliance Support | Built-in CRC for flash, RAM parity check, SFR write protection, illegal access detection, and clock frequency monitor per IEC/UL 60730 |
| Flexible Clock System | High-speed on-chip oscillator (24 MHz ±1%), low-speed on-chip (15 kHz), and dual external crystal options for precision timing |
Applications
| Smart Meter Display Unit | Portable Medical Device UI |
|---|---|
Use Scenario: Battery-powered utility meter with segmented LCD showing kWh, tariff, and status indicators. IC Role / Device Role / Timing Role: Primary MCU managing LCD refresh, RTC-based billing intervals, ADC-based sensor monitoring, and secure firmware updates. Use Value: Ultra-low 0.64 µA halt current extends battery life beyond 10 years; integrated LCD driver eliminates external bias IC and reduces BOM cost by $0.35. | Use Scenario: Handheld blood glucose monitor with 4-digit LCD, button interface, and USB charging indicator. IC Role / Device Role / Timing Role: Central controller handling button scan (KR0–KR3), LCD segment drive, ADC sampling of test strip signal, and low-battery warning via LVD. Use Value: On-chip 10-bit ADC with internal reference enables accurate glucose measurement without external precision references; snooze mode cuts active current during idle periods. |
| Home Appliance Control Panel | Industrial Thermostat Display |
Use Scenario: Microwave oven control panel with 3-line segmented LCD, touch keys, and buzzer feedback. IC Role / Device Role / Timing Role: Dedicated display controller interfacing with keypad matrix (KR0–KR3), driving LCD segments (SEG0–SEG38), and generating audible tones via PCLBUZ0/PCLBUZ1. Use Value: Integrated buzzer output and LCD driver reduce component count by 3 ICs; 5 V-tolerant I/O simplifies connection to legacy keypad hardware. | Use Scenario: DIN-rail mounted HVAC thermostat with 2-line LCD, temperature sensor input, and relay control logic. IC Role / Device Role / Timing Role: Real-time system controller executing PID loop (via 16×16 MAC), updating LCD every second, logging min/max temps in data flash, and maintaining RTC accuracy across power cycles. Use Value: Data flash endurance (1M erase cycles) ensures 10+ years of daily logging; RTC calendar function eliminates need for external timekeeping IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RLAAB#30 | Same package and pinout; 16 KB flash (vs. 32 KB), identical RAM/data flash/peripherals | Lower memory capacity suits simpler UIs with static display content and no firmware update requirement | Select when application code size remains under 14 KB and future feature expansion is unlikely |
| R5F10RGCAGB#30 | 48-pin LFQFP (7×7 mm); same 32 KB flash, 2 KB data flash, but only 1 KB RAM and reduced I/O (44 pins vs. 64) | Smaller footprint and lower pin count fit compact designs where LCD segment count ≤ 35 seg × 4 com | Choose for space-constrained PCBs where full 39-seg LCD drive and extra timers/I/O are unnecessary |
Compared with R5F10RLAAB#30, the R5F10RLCAFB#30 provides double flash capacity for OTA updates and richer UI assets; versus R5F10RGCAGB#30, it adds 16 more I/O pins, full 8-common LCD support, and enhanced thermal margin via larger package thermal mass.
Availability
R5F10RLCAFB#30 is available at Aetrix Electronics and suitable for smart meter displays, portable medical UIs, home appliance control panels, and industrial thermostat interfaces requiring stable component supply and long-term manufacturability.
Supply support for R5F10RLCAFB#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 targets ultra-low-power LCD-based applications, integrating high-efficiency CPU, on-chip LCD driver, and robust safety features to simplify design of battery-operated consumer and industrial displays.
FAQ
What is the maximum operating frequency and performance of the R5F10RLCAFB#30?
The R5F10RLCAFB#30 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, and the 3-stage pipeline ensures deterministic timing for real-time display updates and sensor polling in the R5F10RLCAFB#30.
Does the R5F10RLCAFB#30 support external crystal oscillators?
Yes, the R5F10RLCAFB#30 supports dual crystal configurations: X1/X2 pins for the main system clock (up to 20 MHz) and XT1/XT2 pins for the 32.768 kHz subsystem clock. This enables precise RTC operation and flexible clock source selection while retaining the internal 24 MHz oscillator for fast wake-up in the R5F10RLCAFB#30.
How many LCD segments and commons does the R5F10RLCAFB#30 support?
The R5F10RLCAFB#30 supports up to 39 segment outputs and 8 common outputs, configurable as 39 seg × 4 com or 35 seg × 8 com. It implements three LCD drive methods-capacitor split, internal voltage boost, and resistance division-and includes 16-step contrast control and blinking functionality in the R5F10RLCAFB#30.
What low-power modes are available on the R5F10RLCAFB#30?
The R5F10RLCAFB#30 offers Stop mode (0.23 µA RAM-retained), Halt mode (0.64 µA with RTC + LVD), and Snooze mode (fast wake-up from low-power state with partial peripheral operation). These modes enable multi-year battery life in display-centric devices and are fully supported in the R5F10RLCAFB#30's power management unit.
Is the R5F10RLCAFB#30 qualified for functional safety standards?
Yes, the R5F10RLCAFB#30 includes hardware safety features aligned with IEC/UL 60730: flash memory CRC calculation, RAM parity error detection, SFR write protection, illegal memory access detection, clock frequency monitor, and ADC self-test-all documented in the R5F10RLCAFB#30 datasheet for Class B compliance.
R5F10RLCAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 47
- 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 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RLCAFB#30 FAQ
1.How can I place an order for R5F10RLCAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RLCAFB#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 R5F10RLCAFB#30 reliable?
The price and inventory of R5F10RLCAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RLCAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F10RLCAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RLCAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RLCAFB#30?
R5F10RLCAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RLCAFB#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 R5F10RLCAFB#30?
For technical support, including R5F10RLCAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RLCAFB#30 requirements.
6.How does Aetrix verify that R5F10RLCAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F10RLCAFB#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 R5F10RLCAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F10RLCAFB#30?
All R5F10RLCAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RLCAFB#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 R5F10RLCAFB#30 part is unused and in its original packaging.
Return procedure for R5F10RLCAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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