Renesas R5F110NJALA#W0
- Part No.:
- R5F110NJALA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 85-VFLGA
- Datasheet:
-
R5F110NJALA#W0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 85VFLGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F110NJALA#W0 from Renesas is an ultra-low-power 16-bit RL78/L1C microcontroller with integrated LCD controller/driver (44–56 segment, 4–8 common), 12-bit A/D converter (12-channel, 2.4–3.6 V range), USB 2.0 function controller (full-speed/low-speed), and 256 KB flash memory. It operates from 1.6–3.6 V, achieves 33 DMIPS at 24 MHz, and targets battery-powered LCD-based medical, industrial, and consumer instrumentation.
For engineers reviewing the R5F110NJALA#W0 datasheet, R5F110NJALA#W0 pinout, R5F110NJALA#W0 application, or R5F110NJALA#W0 equivalent, key selection criteria include its VFLGA-85 package, USB 2.0 function support, true low-power modes (0.68 μA RTC+LVD), integrated LCD drive capability, and 256 KB code flash with 8 KB data flash for firmware updates and parameter storage.
Technical Context
The R5F110NJALA#W0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable 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 supporting high-speed main and low-speed subsystem clocks.
Its peripheral set includes an LCD controller with internal boosting/capacitor-split/external-resistor division options, 11× 16-bit timers, real-time clock 2 (99-year calendar), event link controller (30+ event sources), and data transfer controller (DTC) with chain transfer-enabling deterministic low-CPU-load operation in LCD and sensor interface applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Flash Memory | 256 KB code flash + 8 KB data flash with background operation (BGO) and 1M rewrite cycles |
| USB Interface | USB 2.0 function controller supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) modes |
| LCD Driver | Integrated controller supporting up to 56 segments × 8 commons (capacitor-split method) |
| A/D Converter | 12-bit resolution (VDD = 2.4–3.6 V), 12 analog inputs, internal reference (1.45 V TYP) |
| Power Consumption | 112.5 μA/MHz active; 0.68 μA in STOP mode with RTC2 + LVD enabled |
| Operating Voltage | 1.6 V to 3.6 V single supply; supports -40°C to +85°C ambient (A-grade) |
Pinout & Package
Package: 85-pin plastic VFLGA (7 × 7 mm, 0.65 mm pitch), lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UREGC | USB Regulator Capacitor Terminal | Connects to VSS via 0.33 μF capacitor to stabilize internal USB voltage regulator |
| UVBUS | USB Power Supply Input | Accepts 4.4–5.25 V USB bus voltage; enables USB function when powered |
| UDP / UDM | USB Differential Data Lines | Full-speed/low-speed USB 2.0 differential pair; require 27 Ω series resistors and proper PCB routing |
| 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 segment electrodes; R5F110NJALA#W0 supports up to 56 active segments |
| P126 / P127 | LCD Capacitor Terminals (CAPL / CAPH) | Connect external capacitors for internal charge-pump voltage boosting of LCD bias |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 0.68 μA STOP mode with RTC2 + LVD active enables multi-year battery life in portable instruments |
| Integrated LCD Controller/Driver | Eliminates external LCD driver IC; supports capacitor-split method for reduced external component count |
| USB 2.0 Function Controller | Enables direct PC connectivity for configuration, firmware update, and data logging without external transceiver |
| Background Data Flash Rewrite | Allows execution from program memory while updating parameters or calibration data in data flash |
| Event Link Controller (ELC) | Hardware-triggered peripheral linking reduces CPU overhead and improves real-time response for sensor/LCD events |
Applications
| Medical Glucometer | Industrial Panel Meter |
|---|---|
|
Use Scenario: Portable blood glucose monitor with 4-digit LCD, button interface, and USB data export. IC Role / Device Role / Timing Role: Main MCU managing ADC sampling, LCD refresh, button debouncing, USB HID communication, and RTC-stamped log storage. Use Value: Integrated LCD driver and USB eliminate two external ICs; 0.68 μA STOP mode extends CR2032 battery life beyond 2 years. |
Use Scenario: DIN-rail mounted digital panel meter displaying voltage/current with local keypad and USB configuration port. IC Role / Device Role / Timing Role: System controller handling 12-bit analog input acquisition, 4×8-segment LCD drive, keypad scanning, and USB CDC virtual COM port. Use Value: 256 KB flash accommodates dual-bank firmware for safe field updates; ELC synchronizes ADC triggers with LCD refresh timing. |
| Smart Thermostat Display | Portable Environmental Logger |
|
Use Scenario: Battery-powered HVAC thermostat with segmented LCD, temperature/humidity sensors, and USB setup interface. IC Role / Device Role / Timing Role: Central processor executing sensor fusion, LCD segment mapping, capacitive key detection, and USB mass storage emulation for config file transfer. Use Value: Internal 1.45 V A/D reference ensures stable measurement accuracy across 1.6–3.6 V supply range; SNOOZE mode enables periodic wake-up with minimal power penalty. |
Use Scenario: Handheld logger recording temperature, humidity, and light levels onto internal flash, with USB download capability. IC Role / Device Role / Timing Role: Data acquisition engine using 12-bit A/D, real-time clock 2 for timestamping, LCD for local readout, and USB for bulk data retrieval. Use Value: 8 KB data flash with BGO allows continuous logging while background-writing timestamps and sensor values; 33 DMIPS headroom supports future firmware expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F110NJGFB#30 | 80-pin LFQFP package; lacks USB; same 256 KB flash, 16 KB RAM, and LCD capability | Requires external USB-to-UART bridge for PC connectivity; suited for space-constrained non-USB designs | Select when USB is unnecessary and board layout favors QFP over VFLGA |
| R5F110PJALA#W0 | Same 85-pin VFLGA package and USB support, but 100-pin variant with 256 KB flash and extended I/O (77 GPIO vs. 59) | Supports larger LCDs (up to 56 segments × 8 commons) and more analog inputs (13 vs. 12); adds extra UART/CSI channels | Choose when additional peripherals or higher I/O count are required without changing package footprint |
Compared with R5F110NJALA#W0, R5F110NJGFB#30 removes USB functionality and changes package to reduce cost and simplify layout where PC connectivity is handled externally, while R5F110PJALA#W0 retains identical package and USB but expands I/O and peripheral count for more complex LCD systems requiring greater signal routing flexibility.
Availability
R5F110NJALA#W0 is available at Aetrix Electronics and suitable for medical instrumentation, industrial panel meters, and smart home thermostats requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F110NJALA#W0 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 is engineered specifically for ultra-low-power LCD-based applications, integrating display driving, precision sensing, and USB connectivity into a single chip to minimize BOM and power consumption.
FAQ
What is the maximum LCD segment count supported by the R5F110NJALA#W0?
The R5F110NJALA#W0 supports up to 56 segment outputs and 8 common outputs, enabling drive of multiplexed LCDs with up to 448 (56 × 8) distinct segments. The actual usable count depends on selected bias method (capacitor-split or external resistor division) and common count configuration-verified in the RL78/L1C User's Manual Chapter 27.
Does the R5F110NJALA#W0 support USB device enumeration without external components?
Yes, the R5F110NJALA#W0 includes a fully integrated USB 2.0 function controller with internal transceiver and voltage regulator. When UREGC is decoupled to VSS with 0.33 μF and UVBUS is supplied with 4.4–5.25 V, the R5F110NJALA#W0 enumerates as a USB device without external PHY or level shifters-confirmed in Section 1.1 and Figure 1-1 of R01DS0192EJ0240.
What are the power supply requirements for the A/D converter's 12-bit mode on the R5F110NJALA#W0?
The 12-bit A/D conversion on the R5F110NJALA#W0 requires VDD between 2.4 V and 3.6 V. Operation below 2.4 V reverts to 8/10-bit mode only. This specification is explicitly stated in Section 1.1 "A/D converter" of the datasheet and validated across all operating temperatures (−40°C to +85°C).
How many GPIO pins are available on the R5F110NJALA#W0 in its VFLGA-85 package?
The R5F110NJALA#W0 provides 59 general-purpose I/O pins in the 85-pin VFLGA package, including 2 N-ch open-drain ports rated to 6 V. Pin functions are configurable via peripheral I/O redirection registers (PIOR), and detailed allocation is shown in Section 1.3.3 "85-pin products (with USB)" of R01DS0192EJ0240.
Is the R5F110NJALA#W0 compatible with Renesas' E2 studio and CS+ development environments?
Yes, the R5F110NJALA#W0 is fully supported in Renesas E2 studio v2023-10+ and CS+ for CC v8.05.00+, including debug via on-chip FINE interface, flash programming, and peripheral configuration tools. Support is documented in the RL78/L1C Target Board User's Manual and verified in Renesas' official IDE release notes.
R5F110NJALA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 85-VFLGA
- Series:
- RL78/L1C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K 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:
R5F110NJALA#W0 FAQ
1.How can I place an order for R5F110NJALA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F110NJALA#W0 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 R5F110NJALA#W0 reliable?
The price and inventory of R5F110NJALA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F110NJALA#W0 is usually 5 days.
3.What payment methods are accepted for R5F110NJALA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F110NJALA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F110NJALA#W0?
R5F110NJALA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F110NJALA#W0 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 R5F110NJALA#W0?
For technical support, including R5F110NJALA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F110NJALA#W0 requirements.
6.How does Aetrix verify that R5F110NJALA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F110NJALA#W0 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 R5F110NJALA#W0 meets industry standards.
7.What is the process for return or replacement of R5F110NJALA#W0?
All R5F110NJALA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F110NJALA#W0, 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 R5F110NJALA#W0 part is unused and in its original packaging.
Return procedure for R5F110NJALA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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