Renesas R5F110NHALA#U0
- Part No.:
- R5F110NHALA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 85-VFLGA
- Datasheet:
-
R5F110NHALA#U0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 85VFLGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F110NHALA#U0 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, VDD = 2.4–3.6 V), USB 2.0 function controller (full-speed/low-speed), and 192 KB flash memory. It operates from 1.6 V to 3.6 V, achieves 33 DMIPS at 24 MHz, and targets battery-powered LCD-based human interface devices such as smart meters and portable medical displays.
For engineers reviewing the R5F110NHALA#U0 datasheet, R5F110NHALA#U0 pinout, R5F110NHALA#U0 application, or R5F110NHALA#U0 equivalent, key selection criteria include its USB 2.0 function capability, on-chip LCD drive support for up to 56 segments, 192 KB code flash with 8 KB data flash, true low-power operation down to 0.68 μA in RTC2+LVD mode, and 85-pin VFLGA package compatibility with space-constrained designs.
Technical Context
The R5F110NHALA#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), hardware LCD controller supporting internal boosting and capacitor-split methods, and dual-reference A/D conversion with internal 1.45 V reference and temperature sensor.
Its peripheral set includes 11× 16-bit timers, real-time clock 2 (RTC2) with calendar and alarm, event link controller (ELC) for autonomous peripheral triggering, data transfer controller (DTC), and five I²C-compatible channels - all operating within a unified low-power platform that supports HALT, STOP, and SNOOZE modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/accumulate instructions |
| Flash / Data Flash | 192 KB code flash (1 KB blocks) + 8 KB background-operable data flash (1M rewrite cycles) |
| USB Interface | USB 2.0 function controller supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) with Battery Charging Spec 1.2 compliance |
| LCD Driver | Integrated controller supporting 44–56 segment × 4–8 common outputs; selectable internal boost/capacitor-split/external resistor division |
| A/D Converter | 12-bit resolution (VDD ≥ 2.4 V), 12 analog inputs, internal 1.45 V reference, and on-chip temperature sensor |
| Power Consumption | As low as 112.5 μA/MHz active; 0.68 μA in RTC2 + LVD mode; 1.6–3.6 V supply range |
| Package | 85-pin plastic VFLGA (7 × 7 mm, 0.65 mm pitch), tray packaging (#U0) |
Pinout & Package
85-pin plastic VFLGA package (7 × 7 mm, 0.65 mm pitch), optimized for compact LCD-based consumer and industrial applications. Pin functions are multiplexed via peripheral I/O redirection register (PIOR) and include dedicated LCD segment/common outputs, USB D+/D− (UDP/UDM), USB regulator control (UREGC/UVBUS), and key return (KR0–KR7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UDP / UDM | USB differential data pair | Full-speed/low-speed USB 2.0 function interface; requires 27 Ω series termination per line |
| UREGC | USB regulator decoupling terminal | Connects to VSS via 0.33 μF capacitor to stabilize internal 3.3 V USB regulator output |
| UVBUS | USB power detection input | Monitors VBUS presence (5 V) to enable USB function mode and wake from low-power states |
| SEG0–SEG55 / COM0–COM7 | LCD segment and common outputs | Configurable drive strength and bias; supports static, 1/2, 1/3, or 1/4 duty LCD panels |
| P00–P07, P10–P17, etc. | Multiplexed general-purpose I/O | Support TTL input, N-ch open-drain (6 V tolerant), pull-up resistors, and key interrupt detection |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 0.68 μA RTC2+LVD retention current enables decade-scale battery life in metering applications |
| Integrated LCD Controller | Eliminates external driver IC; supports up to 448 segment combinations (56×8) with internal voltage boosting |
| Background Data Flash Rewrite | Enables firmware updates without halting application execution via BGO (background operation) |
| Event Link Controller (ELC) | Reduces CPU load by enabling direct peripheral-to-peripheral triggering (e.g., timer → ADC → DTC) |
| USB Battery Charging Support | Complies with BC 1.2 spec for DCP/CDP/SDP detection, simplifying charging circuitry in portable devices |
Applications
| Smart Energy Meter | Portable Medical Display |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD display, real-time tariff tracking, and USB configuration port. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, driving 48-segment LCD, managing RTC2 calendar, and handling USB firmware updates. Use Value: Ultra-low standby current (0.68 μA) extends 10-year battery life; integrated LCD driver reduces BOM count by one IC; USB 2.0 enables field reprogramming without opening enclosure. |
Use Scenario: Handheld blood glucose monitor or pulse oximeter with monochrome LCD, button interface, and PC connectivity for data export. IC Role / Device Role / Timing Role: Central MCU managing analog sensor acquisition (12-bit A/D), LCD refresh, buzzer alerts (PCLBUZ0/1), and USB mass storage emulation. Use Value: On-chip temperature sensor calibrates A/D readings; key return (KR0–KR7) supports 8-button keypad without external matrix decoder; 1.6 V minimum VDD allows operation until battery depletion. |
| Home Appliance Control Panel | Industrial HMI Module |
|
Use Scenario: Oven/microwave control panel with 4-line segmented display, touch-sensitive keys, and USB service port. IC Role / Device Role / Timing Role: Dedicated UI controller handling LCD rendering, key scan (KR0–KR7), buzzer feedback, and USB diagnostics. Use Value: Capacitor-split LCD drive method eliminates external charge pump; ELC links timer events to buzzer output for precise tone generation; 85-pin VFLGA fits narrow front-panel PCBs. |
Use Scenario: DIN-rail mounted HVAC controller with 56-segment LCD, RS-485 communication, and USB configuration backup. IC Role / Device Role / Timing Role: Industrial-grade main controller (TA = −40 to +105°C) managing environmental sensing, relay control, and dual-interface communication. Use Value: 105°C rating ensures reliability in enclosed enclosures; 192 KB flash accommodates dual-application firmware images; UART/LIN support enables legacy bus integration alongside USB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F110NJALA#U0 | Same 85-pin VFLGA package and USB functionality, but with 256 KB flash and 16 KB RAM (vs. 192 KB/12 KB) | Preferred for applications requiring larger firmware footprint or additional RAM for complex UI stacks | Select when future firmware expansion headroom or multitasking capability is required |
| R5F111NHALA#U0 | Pin-compatible 85-pin VFLGA variant without USB 2.0 controller; otherwise identical flash/RAM/peripherals | Suitable where USB is unnecessary and cost reduction or simplified layout is prioritized | Choose if USB connectivity is omitted and lower BOM cost is critical |
Compared with R5F110NHALA#U0, R5F110NJALA#U0 provides greater firmware capacity for feature-rich interfaces, while R5F111NHALA#U0 removes USB circuitry to reduce component count and power overhead-enabling trade-offs between connectivity, memory, and cost without changing PCB layout.
Availability
R5F110NHALA#U0 is available at Aetrix Electronics and suitable for smart energy metering, portable medical instrumentation, home appliance control panels, and industrial HMI modules requiring stable component supply across long product lifecycles.
Supply support for R5F110NHALA#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 is designed specifically for ultra-low-power LCD-based applications-integrating high-resolution display drivers, precision analog peripherals, and USB connectivity into a single chip to replace multi-IC solutions in consumer and industrial UI systems.
FAQ
What is the maximum LCD segment count supported by the R5F110NHALA#U0?
The R5F110NHALA#U0 supports up to 56 segment outputs and 8 common outputs, enabling drive of LCD panels with up to 448 segment combinations (56 × 8). Segment mapping is configurable via register settings, and the controller supports static, 1/2, 1/3, and 1/4 duty drive methods. The R5F110NHALA#U0 datasheet confirms this capability on page 14 (block diagram) and page 1 of the outline section.
Does the R5F110NHALA#U0 include a hardware USB transceiver?
Yes, the R5F110NHALA#U0 integrates a full-speed/low-speed USB 2.0 function controller with on-die transceiver circuitry. It uses dedicated UDP and UDM pins for differential signaling and requires external 27 Ω series resistors and proper PCB routing per USB specification. The USB regulator (controlled via UREGC and monitored via UVBUS) is also integrated, eliminating need for external 3.3 V regulation.
What are the operating temperature grades available for the R5F110NHALA#U0?
The R5F110NHALA#U0 is specified for consumer-grade operation from −40°C to +85°C (denoted by "A" in the part number suffix). It is not rated for industrial temperature range (−40°C to +105°C), which applies to "G"-suffixed variants like R5F110NHGLA. This grading is confirmed in the Ordering Information table on page 3 of the R01DS0192EJ0240 datasheet.
How much RAM does the R5F110NHALA#U0 provide?
The R5F110NHALA#U0 includes 12 KB of on-chip RAM. This value is explicitly stated in the "ROM, RAM capacities" table on page 2 of the R01DS0192EJ0240 datasheet under the "Products with USB" section for the 85-pin row. The RAM is used for stack, heap, and peripheral buffers-including dedicated space for LCD display data.
Can the R5F110NHALA#U0 perform A/D conversion at 1.6 V supply?
No-the R5F110NHALA#U0's 12-bit A/D converter requires VDD ≥ 2.4 V for full resolution operation. At 1.6–2.3 V, only 8/10-bit A/D conversion is supported. This voltage dependency is clearly specified in the "A/D converter" feature list on page 1 and reinforced in the electrical characteristics tables of the full datasheet.
R5F110NHALA#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:
- 192KB (192K 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:
R5F110NHALA#U0 FAQ
1.How can I place an order for R5F110NHALA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F110NHALA#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 R5F110NHALA#U0 reliable?
The price and inventory of R5F110NHALA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F110NHALA#U0 is usually 5 days.
3.What payment methods are accepted for R5F110NHALA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F110NHALA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F110NHALA#U0?
R5F110NHALA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F110NHALA#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 R5F110NHALA#U0?
For technical support, including R5F110NHALA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F110NHALA#U0 requirements.
6.How does Aetrix verify that R5F110NHALA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F110NHALA#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 R5F110NHALA#U0 meets industry standards.
7.What is the process for return or replacement of R5F110NHALA#U0?
All R5F110NHALA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F110NHALA#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 R5F110NHALA#U0 part is unused and in its original packaging.
Return procedure for R5F110NHALA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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