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Renesas R5F111NJALA#W0
- Part No.:
- R5F111NJALA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 85-VFLGA
- Datasheet:
-
R5F111NJALA#W0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 85VFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,103
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Product details
Overview
R5F111NJALA#W0 from Renesas is an RL78/L1C 85-pin VFLGA microcontroller without USB, featuring 192 KB flash, 8 KB data flash, 16 KB RAM, 12-bit A/D converter (2.4–3.6 V), and integrated LCD controller/driver supporting up to 52 segments and 8 commons. It operates from 1.6 V to 3.6 V and targets ultra-low-power LCD-based metering and control applications.
For engineers reviewing the R5F111NJALA#W0 datasheet, R5F111NJALA#W0 pinout, R5F111NJALA#W0 application, or R5F111NJALA#W0 equivalent, key selection criteria include its non-USB RL78/L1C variant status, VFLGA-85 package with 0.65 mm pitch, -40°C to +85°C consumer-grade temperature range, and absence of USB 2.0 function controller-distinguishing it from R5F110x-series parts.
Technical Context
The R5F111NJALA#W0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.04167 μs at 24 MHz or 30.5 μs at 32.768 kHz). It integrates a 12-bit interval timer, RTC2 with calendar and alarm, and event link controller (ELC) for peripheral signal routing.
Its power management includes HALT, STOP, and SNOOZE modes, achieving as low as 112.5 μA/MHz active current and 0.68 μA in RTC2+LVD standby. The LCD controller supports internal voltage boosting, capacitor split, and external resistance division methods, with segment outputs mapped across P0–P7, P12–P15 ports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 CPU, CISC, 3-stage pipeline, 33 DMIPS @ 24 MHz |
| Flash / Data Flash / RAM | 192 KB code flash, 8 KB data flash (1M rewrite cycles), 16 KB RAM |
| Supply Voltage | 1.6 V to 3.6 V - enables single-supply operation in battery-powered LCD devices |
| A/D Converter | 12-bit resolution (VDD = 2.4–3.6 V), 13-channel analog input with internal 1.45 V reference |
| LCD Driver | Up to 52 segments × 8 commons; supports internal boost, capacitor split, and external resistor division |
| Operating Temperature | -40°C to +85°C (Consumer grade, "A" suffix) |
| Package | 85-pin VFLGA (7 × 7 mm, 0.65 mm pitch), embossed tape (#W0) |
Pinout & Package
85-pin plastic VFLGA package (7 × 7 mm, 0.65 mm pitch), RoHS-compliant, designed for high-density PCB layouts and low-profile LCD module integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM0–COM7 | LCD common output | Drives up to 8 LCD backplane signals; supports multiplexed display driving |
| SEG0–SEG55 | LCD segment output | Configurable segment drivers (R5F111NJALA#W0 supports up to 52 active segments per 8-com configuration) |
| P00–P07, P10–P12, P20–P27, P30–P35, P40, P43–P46, P50–P52, P70–P77, P121–P127, P130, P137, P140–P143, P150–P152 | General-purpose I/O with peripheral function remapping | Multi-function pins assignable via PIOR register; support timers, UART, CSI, I²C, ADC, DAC, comparator, key return, buzzer |
| VDD0, VSS0, AVDD, AVSS | Power and ground | Dual-domain supply: digital (VDD0/VSS0) and analog (AVDD/AVSS) rails decoupled for noise-sensitive LCD and ADC operation |
| REGC | On-chip regulator capacitor connection | Requires 0.47–1 μF capacitor to VSS for stable internal voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 112.5 μA/MHz active current and 0.68 μA RTC2+LVD standby enable decade-long battery life in portable meters |
| Integrated LCD Controller/Driver | Hardware-accelerated drive for up to 416-segment displays (52 seg × 8 com); eliminates external driver IC and reduces BOM cost |
| Background Data Flash Rewrite | BGO mode allows full CPU execution from program memory during 8 KB data flash reprogramming - critical for field firmware updates |
| 12-bit Interval Timer + RTC2 | Calendar-mode RTC with alarm, clock correction, and 1 Hz output enables precise timekeeping in energy monitors and thermostats |
| Event Link Controller (ELC) | 31-event hardware routing eliminates CPU polling/interrupt latency for time-critical sensor-to-LCD or ADC-to-DAC workflows |
Applications
| Energy Metering | Home Appliance Control Panel |
|---|---|
|
Use Scenario: Digital electricity/water/gas meter with segmented LCD display, real-time consumption logging, and tamper detection. IC Role / Device Role / Timing Role: Main system MCU managing metrology ADC sampling, RTC2 timestamping, LCD refresh, and secure data flash storage. Use Value: Integrated 12-bit A/D and LCD driver reduce component count; ultra-low standby current extends battery backup to >10 years. |
Use Scenario: Microwave oven or washing machine front panel with multi-digit LCD, touch-key interface, and motor control feedback. IC Role / Device Role / Timing Role: Human interface controller handling key scanning (KR0–KR7), buzzer output (PCLBUZ0/1), segment driving, and serial communication to main MCU. Use Value: On-chip key interrupt and programmable clock/buzzer eliminate external logic; SNOOZE mode cuts idle power during standby. |
| Portable Medical Device | Industrial Sensor Display Unit |
|
Use Scenario: Handheld blood glucose monitor or pulse oximeter with monochrome LCD, button inputs, and battery gauge. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor signal conditioning (ADC + comparator), LCD rendering, button debouncing, and low-battery warning (LVD). Use Value: Single 1.6–3.6 V supply simplifies power design; internal reference (1.45 V) ensures consistent ADC accuracy across battery discharge. |
Use Scenario: DIN-rail mounted temperature/humidity display unit with local LCD, RS-485 interface, and environmental logging. IC Role / Device Role / Timing Role: Local display controller receiving Modbus data via UART2/3, updating LCD content, and maintaining RTC2-synchronized log timestamps. Use Value: Hardware UARTs with LIN support simplify industrial bus integration; ELC links UART receive events directly to LCD update triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F111NHALA#W0 | 128 KB flash, 12 KB RAM, same 85-pin VFLGA package and peripheral set | Suitable for cost-optimized designs with reduced firmware footprint and smaller RAM requirements | Select when application firmware fits within 128 KB and does not require >12 KB RAM for LCD frame buffers or logging |
| R5F111PJAFB#30 | 100-pin LFQFP (14×14 mm), 192 KB flash, adds USB 2.0 function controller and 4 extra I/Os | Required where USB device connectivity (e.g., PC configuration, firmware upload) is mandatory | Choose only if USB 2.0 functionality is needed; requires PCB redesign due to larger package and different pinout |
Compared with R5F111NJALA#W0, R5F111NHALA#W0 reduces memory resources while retaining identical low-power LCD capabilities and package compatibility, whereas R5F111PJAFB#30 introduces USB and expands I/O count at the cost of board space and layout change - making R5F111NJALA#W0 optimal for compact, USB-free, high-segment LCD applications.
Availability
R5F111NJALA#W0 is available at Aetrix Electronics and suitable for energy metering, home appliance HMI, portable medical devices, and industrial sensor display units requiring stable component supply and long-term production continuity.
Supply support for R5F111NJALA#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 high-resolution display driving, precision analog peripherals, and sub-μA standby operation into a single chip.
FAQ
Does R5F111NJALA#W0 include a USB controller?
No, R5F111NJALA#W0 is explicitly a non-USB variant of the RL78/L1C family. Its part number prefix "111" denotes absence of USB functionality, unlike "110"-prefixed parts (e.g., R5F110NJALA#W0). The R5F111NJALA#W0 datasheet confirms no UDM, UDP, UREGC, or UVBUS pins are implemented.
What LCD segment and common count does R5F111NJALA#W0 support?
R5F111NJALA#W0 supports up to 52 segment outputs and 8 common outputs when configured for 8-common operation - as confirmed in Section 1.1 Features ("Segment signal output: 44 (40) to 56 (52)") and validated by its 85-pin VFLGA pinout allocating SEG0–SEG55 and COM0–COM7. This enables 416-segment (52 × 8) multiplexed displays.
Is R5F111NJALA#W0 pin-compatible with other RL78/L1C 85-pin variants?
Yes, R5F111NJALA#W0 shares identical 85-pin VFLGA mechanical footprint and pin assignment with all other RL78/L1C 85-pin parts (e.g., R5F111NHALA#W0, R5F111MGALA#W0), including matching power, ground, reset, oscillator, and peripheral signal locations - enabling drop-in replacement within the same memory/feature tier.
What is the maximum operating frequency and associated current consumption of R5F111NJALA#W0?
R5F111NJALA#W0 achieves 33 DMIPS at 24 MHz using the high-speed on-chip oscillator. Its active current is specified as 112.5 μA/MHz at VDD = 3.0 V and TA = 25°C, translating to ~2.7 mA typical at 24 MHz - verified in the "Ultra-low power consumption technology" section of the datasheet.
Does R5F111NJALA#W0 support background data flash rewriting?
Yes, R5F111NJALA#W0 supports Background Operation (BGO) for data flash - allowing CPU code execution from program memory while simultaneously rewriting the 8 KB data flash. This capability is documented in Section 1.1 under "Data flash memory" and enables seamless firmware parameter updates without halting system operation.
R5F111NJALA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 85-VFLGA
- Series:
- RL78/L1C
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 55
- 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 11x8/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F111NJALA#W0 FAQ
1.How can I place an order for R5F111NJALA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F111NJALA#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 R5F111NJALA#W0 reliable?
The price and inventory of R5F111NJALA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F111NJALA#W0 is usually 5 days.
3.What payment methods are accepted for R5F111NJALA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F111NJALA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F111NJALA#W0?
R5F111NJALA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F111NJALA#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 R5F111NJALA#W0?
For technical support, including R5F111NJALA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F111NJALA#W0 requirements.
6.How does Aetrix verify that R5F111NJALA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F111NJALA#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 R5F111NJALA#W0 meets industry standards.
7.What is the process for return or replacement of R5F111NJALA#W0?
All R5F111NJALA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F111NJALA#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 R5F111NJALA#W0 part is unused and in its original packaging.
Return procedure for R5F111NJALA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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