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Renesas R5F110NFALA#U0
- Part No.:
- R5F110NFALA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 85-VFLGA
- Datasheet:
-
R5F110NFALA#U0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 85VFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,829
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Product details
Overview
R5F110NFALA#U0 from Renesas is an RL78/L1C 85-pin VFLGA ultra-low-power 16-bit MCU with integrated LCD controller/driver (44/56 segment, 4/8 common), 64 KB flash, 8 KB data flash, 8 KB RAM, USB 2.0 function controller, and 12-bit A/D converter - designed for battery-powered LCD display applications including smart meters and portable medical devices.
For engineers reviewing the R5F110NFALA#U0 datasheet, R5F110NFALA#U0 pinout, R5F110NFALA#U0 application, or R5F110NFALA#U0 equivalent, key selection criteria include its USB 2.0 full-speed capability, true low-power operation (0.68 μA in RTC2+LVD mode), 1.6–3.6 V supply range, and integrated LCD bias generation supporting capacitor-split and external-resistor methods.
Technical Context
The R5F110NFALA#U0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.04167 μs min @24 MHz to 30.5 μs @32.768 kHz). It integrates a dedicated USB voltage regulator (UREGC/UVBUS pins), on-chip PLL, and dual-clock system enabling simultaneous high-speed (USB, CPU) and low-power (RTC, LVD) operation.
Its LCD controller supports programmable bias generation via internal charge pump (CAPH/CAPL), segment/common drive up to 56×8, and multiple voltage-boosting methods. The 12-bit A/D converter operates only at VDD ≥ 2.4 V, while the 8/10-bit mode functions across the full 1.6–3.6 V range - enabling flexible analog sensing in varying supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; supports 33 DMIPS @24 MHz and ultra-low-speed execution down to 32.768 kHz. |
| Memory | 64 KB code flash (1 KB blocks), 8 KB data flash (1M write cycles), 8 KB RAM - enabling secure firmware updates and background data logging. |
| Power Consumption | As low as 0.68 μA in RTC2+LVD STOP mode; 112.5 μA/MHz active current enables multi-year battery life in portable displays. |
| LCD Controller | Integrated driver with 44–56 segment / 4–8 common outputs; supports internal voltage boosting, capacitor-split, and external resistor division methods. |
| A/D Converter | 12-bit resolution (VDD ≥ 2.4 V), 8/10-bit resolution (VDD ≥ 1.6 V), 9–13 input channels, internal 1.45 V reference and temperature sensor. |
| USB Interface | USB 2.0 function controller supporting full-speed (12 Mbps) and low-speed (1.5 Mbps); compliant with Battery Charging Spec 1.2. |
| Operating Range | 1.6 V to 3.6 V supply; -40°C to +85°C ambient (Consumer grade A); 85-pin VFLGA package (7 × 7 mm, 0.65 mm pitch). |
Pinout & Package
Package: 85-pin plastic VFLGA (7 × 7 mm, 0.65 mm pitch), suitable for space-constrained LCD modules requiring fine-pitch surface-mount assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UREGC | USB regulator decoupling | Must connect to VSS via 0.33 μF capacitor to stabilize internal USB 3.3 V regulator output. |
| UVBUS | USB power detection | Monitors VBUS presence for USB enumeration; requires external pull-up/pull-down per host negotiation. |
| UDP / UDM | USB differential data pair | Full-speed USB D+ and D− lines; require 27 Ω series resistors and proper PCB length matching. |
| COM0–COM7 | LCD common outputs | Drive LCD backplane signals; support up to 8 commons for multiplexed display driving. |
| SEG0–SEG55 | LCD segment outputs | Drive LCD frontplane segments; R5F110NFALA#U0 supports up to 56 segments (e.g., 56×8 dot-matrix or alphanumeric). |
| CAPH / CAPL | LCD charge pump capacitors | Connect external capacitors to generate boosted LCD bias voltages; enable internal voltage multiplication. |
| VL1–VL4 | LCD supply rails | Provide programmable LCD voltage levels; configured via register settings for contrast and drive strength control. |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 0.68 μA RTC2+LVD STOP mode and 112.5 μA/MHz active current enable decade-scale coin-cell operation in display-only states. |
| Integrated LCD Bias Generation | Eliminates external LCD bias ICs via programmable internal charge pump (CAPH/CAPL) and selectable voltage-division methods. |
| USB 2.0 Function Controller | Enables direct PC connectivity for firmware updates, data export, or HID-class device emulation without external transceivers. |
| Background Data Flash Rewrite | Allows code execution from flash while rewriting data flash (BGO), enabling seamless parameter storage during real-time operation. |
| Dual Clock Domain Architecture | Separate high-speed (PLL/24 MHz) and subsystem (32.768 kHz) clocks permit concurrent USB communication and ultra-low-power RTC operation. |
Applications
| Smart Energy Meter Display | Portable Medical Monitor |
|---|---|
|
Use Scenario: Compact, battery-backed LCD display showing real-time energy consumption, tariff, and historical data in utility meters. IC Role / Device Role / Timing Role: Primary system MCU managing LCD refresh, UART/IR communication with metering IC, RTC timestamping, and USB-based configuration. Use Value: Integrated LCD driver and ultra-low-power STOP mode extend battery life beyond 10 years; USB interface simplifies field calibration and firmware upgrades. |
Use Scenario: Handheld pulse oximeter or blood glucose monitor with segmented LCD, button interface, and data logging. IC Role / Device Role / Timing Role: Central controller handling analog sensor acquisition (A/D), LCD rendering, buzzer alerts (PCLBUZ), and USB data export to clinic systems. Use Value: On-chip 12-bit A/D converter with internal reference ensures accurate sensor readings; 0.68 μA RTC2+LVD mode preserves battery during standby. |
| Home Appliance Control Panel | Industrial HMI Module |
|
Use Scenario: Oven, washing machine, or HVAC control panel with alphanumeric LCD, touch keys (KR0–KR7), and status indicators. IC Role / Device Role / Timing Role: Dedicated display and UI controller interfacing with main system MCU via UART/I²C; manages key scan, LCD update, and buzzer feedback. Use Value: Integrated key return (KR) inputs and programmable buzzer output (PCLBUZ) reduce BOM count; 85-pin VFLGA enables compact PCB layout. |
Use Scenario: DIN-rail mounted industrial display module showing process variables, alarms, and configuration menus in factory environments. IC Role / Device Role / Timing Role: Standalone display engine receiving Modbus RTU over UART, driving custom LCD glass, and maintaining local RTC/log memory. Use Value: 1.6–3.6 V operation tolerates wide input rails; built-in LVD and POR ensure reliable boot under noisy industrial power conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F110NGALA#U0 | 128 KB flash, 12 KB RAM, same 85-pin VFLGA package and USB/LCD features. | Supports larger firmware (e.g., embedded GUI stacks or protocol stacks) without changing PCB layout. | Select when future firmware expansion or additional peripheral drivers are anticipated. |
| R5F111NFALA#U0 | No USB controller; otherwise identical flash/RAM/LCD specs and pinout. | Used where USB is unnecessary (e.g., IR or wired serial-only communication), reducing EMI and certification complexity. | Choose for cost-sensitive, non-USB display applications requiring identical LCD and low-power performance. |
Compared with R5F110NFALA#U0, R5F110NGALA#U0 provides headroom for feature-rich firmware while retaining pin compatibility, whereas R5F111NFALA#U0 removes USB circuitry to lower system-level EMI and simplify compliance - both alternatives maintain identical LCD drive capability and ultra-low-power operation.
Availability
R5F110NFALA#U0 is available at Aetrix Electronics and suitable for smart energy meters, portable medical monitors, home appliance control panels, and industrial HMI modules requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for R5F110NFALA#U0 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/L1C product line targets ultra-low-power LCD-based applications, integrating display control, precision analog, and USB connectivity into a single chip to eliminate external components and reduce system power.
FAQ
What is the maximum LCD segment count supported by the R5F110NFALA#U0?
The R5F110NFALA#U0 supports up to 56 segment outputs and 8 common outputs, enabling drive configurations such as 56×8 multiplexed LCDs. Segment mapping is configurable via register settings, and the actual usable count depends on selected bias method (capacitor-split vs. external resistor) and common count used.
Does the R5F110NFALA#U0 support USB device enumeration without external components?
Yes, the R5F110NFALA#U0 includes a fully integrated USB 2.0 function controller with internal transceiver and 3.3 V regulator. Only external 0.33 μF UREGC decoupling and standard USB-series resistors on UDP/UDM are required - no external PHY or level-shifter needed for basic full-speed operation.
What are the operating voltage requirements for the 12-bit A/D converter in the R5F110NFALA#U0?
The 12-bit A/D converter in the R5F110NFALA#U0 requires VDD ≥ 2.4 V to operate at full resolution. At lower supply voltages (1.6–2.3 V), it defaults to 8-bit or 10-bit mode. Internal reference voltage (TYP. 1.45 V) and temperature sensor are available across the full 1.6–3.6 V range.
How does the R5F110NFALA#U0 achieve 0.68 μA RTC2 + LVD current?
The R5F110NFALA#U0 achieves 0.68 μA in STOP mode with RTC2 and LVD enabled by powering only the 32.768 kHz subsystem clock domain, disabling all other peripherals and CPU core, and using optimized leakage suppression in the RTC2/LVD circuit block - verified per Renesas datasheet R01DS0192EJ0240.
Is the R5F110NFALA#U0 pin-compatible with other RL78/L1C 85-pin variants?
Yes, all RL78/L1C 85-pin VFLGA variants - including R5F110NEALA#U0, R5F110NGALA#U0, and R5F111NFALA#U0 - share identical pinout and package dimensions. Functional differences (e.g., flash size, USB presence) do not affect mechanical or electrical footprint compatibility.
R5F110NFALA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 85-VFLGA
- Series:
- RL78/L1C
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART, USB
- Peripherals:
- LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 3.6V
- Data Converters:
- A/D 9x8/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F110NFALA#U0 FAQ
1.How can I place an order for R5F110NFALA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F110NFALA#U0 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 R5F110NFALA#U0 reliable?
The price and inventory of R5F110NFALA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F110NFALA#U0 is usually 5 days.
3.What payment methods are accepted for R5F110NFALA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F110NFALA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F110NFALA#U0?
R5F110NFALA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F110NFALA#U0 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 R5F110NFALA#U0?
For technical support, including R5F110NFALA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F110NFALA#U0 requirements.
6.How does Aetrix verify that R5F110NFALA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F110NFALA#U0 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 R5F110NFALA#U0 meets industry standards.
7.What is the process for return or replacement of R5F110NFALA#U0?
All R5F110NFALA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F110NFALA#U0, 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 R5F110NFALA#U0 part is unused and in its original packaging.
Return procedure for R5F110NFALA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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