Renesas R5F110PFAFB#10
- Part No.:
- R5F110PFAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F110PFAFB#10.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:720
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Product details
Overview
R5F110PFAFB#10 from Renesas is a 100-pin LFQFP 8-bit RL78/L1C microcontroller with integrated LCD controller/driver (56 segment × 8 common), USB 2.0 function controller, 12-bit A/D converter (VDD ≥ 2.4 V), 96 KB flash, 12 KB RAM, and true low-power operation down to 0.68 μA in RTC2+LVD mode - designed for battery-powered LCD-based medical meters and portable instrumentation.
For engineers reviewing the R5F110PFAFB#10 datasheet, R5F110PFAFB#10 pinout, R5F110PFAFB#10 application, or R5F110PFAFB#10 equivalent, key selection criteria include USB 2.0 full-speed capability, on-chip LCD drive up to 448 segments (56×8), 12-bit ADC accuracy at 2.4–3.6 V, ultra-low STOP-mode current, and Renesas' RL78 core with 33 DMIPS @ 24 MHz.
Technical Context
The R5F110PFAFB#10 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), dual LCD boost circuits (CAPH/CAPL), and hardware event linking (ELC) for deterministic peripheral triggering without CPU intervention.
Its mixed-signal subsystem includes two independent comparators with internal/external reference selection, programmable clock/buzzer outputs (PCLBUZ0/PCLBUZ1), and a real-time clock 2 (RTC2) with calendar, alarm, and auto-correction - all operating concurrently in HALT/STOP modes while maintaining sub-μA system power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 8-bit CISC with 3-stage pipeline, 33 DMIPS @ 24 MHz |
| Flash / RAM | 96 KB code flash + 8 KB data flash + 12 KB SRAM - supports background rewriting and boot swap |
| USB Interface | USB 2.0 function controller (full-speed 12 Mbps / low-speed 1.5 Mbps), Battery Charging Spec 1.2 compliant |
| LCD Driver | 56 segment × 8 common outputs; supports internal boost, capacitor split, and external resistor division methods |
| A/D Converter | 12-bit resolution (VDD = 2.4–3.6 V), 13-channel analog input, internal 1.45 V reference and temperature sensor |
| Power Modes | HALT (112.5 μA/MHz), STOP (0.68 μA w/ RTC2+LVD), SNOOZE - all with fast wake-up & register retention |
| Operating Range | 1.6–3.6 V supply, -40°C to +85°C ambient (Consumer grade A) |
Pinout & Package
100-pin plastic LFQFP (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, tray-packaged (#10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| UREGC | USB Regulator Capacitor Terminal | Connects 0.33 μF capacitor to VSS to stabilize internal USB 3.3 V regulator |
| UVBUS | USB Bus Voltage Input | Detects VBUS presence (5 V) for USB enumeration and charging detection |
| UDP / UDM | USB Differential Data Lines | Full-speed/low-speed USB 2.0 interface; require 27 Ω series resistors and 1.5 kΩ pull-up on UDP |
| COM0–COM7 | LCD Common Outputs | Drive up to 8 LCD backplanes; support multiplex ratios up to 1/8 duty |
| SEG0–SEG55 | LCD Segment Outputs | Drive up to 56 LCD segments; combined with COMx enables 448-segment display (56×8) |
| CAPH / CAPL | LCD Boost Capacitor Terminals | Interface external capacitors for internal charge-pump voltage boosting (VL1–VL4 generation) |
| REGC | Main Regulator Capacitor Terminal | Connects 0.47–1 μF capacitor to VSS for core voltage regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 0.68 μA STOP mode with RTC2 + LVD active; eliminates need for external RTC or supervisor IC |
| Integrated LCD Controller/Driver | Configurable for 44–56 segments × 4–8 commons; reduces BOM by removing external LCD driver IC |
| Hardware Event Link Controller (ELC) | Links 30+ peripheral events (e.g., timer overflow → ADC trigger) without CPU overhead or interrupt latency |
| Background Data Flash Rewrite | Execute code from flash while rewriting data flash - enables firmware updates without halting operation |
| Dual Comparator with Window Mode | Two independent comparators; one supports window comparison for over/under-voltage monitoring |
Applications
| Medical Glucose Meter | Portable Multimeter |
|---|---|
|
Use Scenario: Handheld device measuring blood glucose concentration with LCD display, button interface, and USB data export. IC Role / Device Role / Timing Role: Main MCU managing electrochemical sensor signal acquisition (via 12-bit ADC), LCD refresh (56×8), USB mass storage emulation, and real-time timestamping (RTC2). Use Value: Integrated USB 2.0 and LCD driver eliminate external transceivers and display controllers, reducing PCB area by >35% and enabling single-chip solution. |
Use Scenario: Battery-powered digital multimeter with 3.5-digit LCD, auto-ranging, and PC logging via USB. IC Role / Device Role / Timing Role: System controller performing precision DC/AC voltage/current measurement (12-bit ADC + comparator), LCD segment driving, and USB CDC communication. Use Value: Sub-μA STOP mode extends battery life beyond 1 year; on-chip LVD ensures accurate low-battery warning without external supervisor. |
| Smart Thermostat Display | Industrial Panel Meter |
|
Use Scenario: Wall-mounted HVAC thermostat with segmented LCD, touch keys (KR0–KR7), and USB configuration port. IC Role / Device Role / Timing Role: Primary controller handling key scan (key return inputs), LCD update, temperature sensing (ADC + internal sensor), and USB parameter programming. Use Value: Built-in key interrupt and programmable buzzer output (PCLBUZ0) simplify UI feedback design; no external key decoder or audio driver required. |
Use Scenario: DIN-rail mounted panel meter displaying voltage, current, and power with local USB setup and calibration. IC Role / Device Role / Timing Role: Embedded controller acquiring analog inputs (ANI0–ANI21), driving 448-segment LCD, executing calibration routines in data flash, and supporting USB HID for field service. Use Value: 1,000,000-cycle data flash endurance enables lifetime calibration storage; USB 2.0 allows secure firmware updates without opening enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F110PGAFB#10 | 128 KB flash, 12 KB RAM, same package and peripherals | Higher firmware headroom for complex USB class drivers or larger LCD fonts | Select when future firmware expansion or dual-display support is anticipated |
| R5F111PFAFB#10 | No USB controller; identical LCD, ADC, and power specs | Cost-sensitive designs where USB is unnecessary and external communication uses UART/I²C | Choose for non-USB systems requiring identical LCD and low-power performance at lower unit cost |
Compared with R5F110PGAFB#10, the R5F110PFAFB#10 trades 32 KB flash for lower cost and footprint-equivalent USB integration; versus R5F111PFAFB#10, it adds USB 2.0 functionality without increasing power consumption or package size - making it optimal for compact, USB-enabled LCD instruments.
Availability
R5F110PFAFB#10 is available at Aetrix Electronics and suitable for medical diagnostics devices, portable test equipment, and smart home displays requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F110PFAFB#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 Corporation 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, USB connectivity, and energy-efficient processing in a single chip for portable and battery-operated instrumentation.
FAQ
What USB speed modes does the R5F110PFAFB#10 support?
The R5F110PFAFB#10 supports both full-speed (12 Mbps) and low-speed (1.5 Mbps) USB 2.0 operation, and complies with Battery Charging Specification Revision 1.2 for dedicated charging port detection. Its integrated USB voltage regulator (UREGC/UVBUS) enables direct connection to standard USB ports without external level-shifting or power conditioning circuitry - simplifying compliance and reducing bill-of-materials for R5F110PFAFB#10-based designs.
How many LCD segments can the R5F110PFAFB#10 drive, and what configurations are supported?
The R5F110PFAFB#10 drives up to 56 segment outputs (SEG0–SEG55) and 8 common outputs (COM0–COM7), enabling up to 448-segment displays (56×8) in 1/8-duty configuration. It supports three LCD voltage generation methods: internal charge-pump boost (using CAPH/CAPL), capacitor-split, and external resistor division - allowing flexible optimization for contrast, power, and external component count in R5F110PFAFB#10 implementations.
What is the minimum operating current of the R5F110PFAFB#10 in low-power mode?
The R5F110PFAFB#10 achieves 0.68 μA in STOP mode with RTC2 and LVD active - verified at VDD = 3.0 V, TA = 25°C. This ultra-low quiescent current enables multi-year battery life in coin-cell-powered devices such as glucose meters and environmental sensors, and eliminates the need for external real-time clocks or voltage supervisors in R5F110PFAFB#10-based systems.
Does the R5F110PFAFB#10 include hardware for autonomous peripheral operation?
Yes, the R5F110PFAFB#10 includes an Event Link Controller (ELC) that enables 30+ peripheral events (e.g., timer overflow, ADC end-of-conversion) to trigger other peripherals directly - without CPU involvement or interrupt latency. This allows deterministic, low-jitter signal chains (e.g., timer-triggered ADC sampling → DMA transfer → LCD update) and reduces active CPU time, further lowering system power in R5F110PFAFB#10 applications.
What analog features are included in the R5F110PFAFB#10 besides the 12-bit ADC?
Beyond the 12-bit A/D converter (13 channels, 1.45 V internal reference), the R5F110PFAFB#10 integrates two independent comparators (with window mode), an 8-bit D/A converter (2 channels, 0–VDD output), and an on-chip temperature sensor. These features enable closed-loop control (e.g., battery voltage monitoring with comparator + LVD), analog waveform generation (D/A), and thermal compensation - all without external components in R5F110PFAFB#10 designs.
R5F110PFAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RL78/L1C
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- 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:
- 69
- 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 13x8/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F110PFAFB#10 FAQ
1.How can I place an order for R5F110PFAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F110PFAFB#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 R5F110PFAFB#10 reliable?
The price and inventory of R5F110PFAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F110PFAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F110PFAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F110PFAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F110PFAFB#10?
R5F110PFAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F110PFAFB#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 R5F110PFAFB#10?
For technical support, including R5F110PFAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F110PFAFB#10 requirements.
6.How does Aetrix verify that R5F110PFAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F110PFAFB#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 R5F110PFAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F110PFAFB#10?
All R5F110PFAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F110PFAFB#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 R5F110PFAFB#10 part is unused and in its original packaging.
Return procedure for R5F110PFAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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