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Renesas R5F111NEGLA#U0
- Part No.:
- R5F111NEGLA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 85-VFLGA
- Datasheet:
-
R5F111NEGLA#U0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 85VFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:416
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Product details
Overview
R5F111NEGLA#U0 from Renesas is an RL78/L1C 85-pin VFLGA microcontroller without USB, featuring 64 KB flash, 8 KB data flash, 8 KB RAM, integrated LCD controller/driver (44 segment × 4 common), 12-bit A/D converter (12-channel), and ultra-low power operation down to 0.68 μA in RTC2+LVD mode - designed for battery-powered LCD-based medical monitors and portable instrumentation.
For engineers reviewing the R5F111NEGLA#U0 datasheet, R5F111NEGLA#U0 pinout, R5F111NEGLA#U0 application, or R5F111NEGLA#U0 equivalent, key selection criteria include its 85-pin VFLGA (7 × 7 mm) package, absence of USB peripheral, industrial-grade temperature range (−40°C to +105°C), and dedicated LCD voltage boosting circuitry supporting capacitor-split drive.
Technical Context
The R5F111NEGLA#U0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction timing (0.04167 μs at 24 MHz to 30.5 μs at 32.768 kHz). It integrates a 12-bit interval timer, real-time clock 2 (RTC2) with calendar and alarm, and event link controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Its low-power design includes HALT, STOP, and SNOOZE modes, on-chip voltage detector (LVD) with 12 interrupt/reset levels, and dual oscillator system (high-speed on-chip oscillator ±1.0% accuracy and low-speed 32.768 kHz subsystem clock). The LCD controller supports internal voltage boosting, capacitor-split, and external resistor-division methods for flexible segment bias generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 CPU, CISC, 3-stage pipeline, 33 DMIPS @ 24 MHz |
| Memory | 64 KB code flash, 8 KB data flash (1M rewrite cycles), 8 KB RAM |
| ADC | 12-bit resolution A/D converter, 12 analog inputs, internal 1.45 V reference |
| LCD Driver | 44 segment × 4 common outputs; supports internal boost, capacitor-split, or external resistor division |
| Power | 1.6–3.6 V supply; 0.68 μA in RTC2+LVD STOP mode; −40°C to +105°C operating range |
| Peripherals | 4× UART/LIN, 5× I²C, 4× CSI, 11× 16-bit timers, 2× comparators, D/A converter (2 ch) |
| Package | 85-pin 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 space-constrained LCD applications requiring high I/O density and low profile. Pin functions support multiplexed LCD segment/common outputs, analog inputs, serial interfaces, and key return lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | COM7/SEG3 | LCD common output 7 or segment output 3 - shared terminal configurable via LCD control register |
| C1 | COM2 | LCD common output 2 - drives LCD backplane for 4-common multiplexing |
| E1 | P04/INTP2/SEG52 | Port 0 bit 4 with external interrupt and LCD segment 52 capability - enables direct segment drive without GPIO remapping |
| G1 | P00/SCK10/SCL10/SEG48 | Port 0 bit 0 supporting SPI clock, I²C clock, or LCD segment 48 - function selected by peripheral I/O redirection register (PIOR) |
| J1 | VSS0 | Digital ground reference for core logic - separate from AVSS to minimize noise coupling into analog/LCD circuits |
| K7 | UDM | USB D− signal - not functional on R5F111NEGLA#U0 (USB-disabled variant); reserved/no-connect |
| K8 | UDP | USB D+ signal - not functional on R5F111NEGLA#U0; reserved/no-connect |
| J7 | UREGC | USB regulator capacitor connection - not used; must be left unconnected or tied to VSS per design guidelines |
| J8 | UVBUS | USB bus voltage sense input - not functional; no connection required |
| B10 | P127/CAPH/(TI03)/(TO03)/(REMOOUT) | LCD capacitor high terminal or timer I/O or remote carrier output - primary use is CAPH for LCD voltage boosting |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 0.68 μA RTC2+LVD STOP mode enables multi-year battery life in portable LCD devices |
| Integrated LCD Controller/Driver | Configurable drive method (capacitor-split) eliminates external charge pump IC and reduces BOM cost |
| Background Data Flash Rewrite | BGO allows full CPU execution from code flash while updating 8 KB data flash - critical for field firmware updates |
| Event Link Controller (ELC) | Hardware-peripheral chaining (e.g., timer trigger → ADC start → DTC transfer) removes CPU polling overhead |
| On-chip Key Return Support | 8-key return inputs (KR0–KR7) with built-in debounce and interrupt generation reduce external scan circuitry |
| Industrial Temperature Range | −40°C to +105°C operation certified for use in automotive cabin modules and industrial HMIs |
Applications
| Medical Glucose Monitor | Industrial Panel Meter |
|---|---|
|
Use Scenario: Portable, battery-powered glucose meter with 4-digit LCD display, button interface, and analog sensor front-end. IC Role / Device Role / Timing Role: Main MCU executing sensor acquisition, calibration, LCD refresh, and button scanning; RTC2 provides time-stamped readings. Use Value: Ultra-low 0.68 μA STOP current extends CR2032 battery life beyond 2 years; integrated LCD driver eliminates external bias IC. |
Use Scenario: DIN-rail mounted panel meter measuring voltage/current with 4-line segmented LCD and isolated RS-485 communication. IC Role / Device Role / Timing Role: System controller managing analog measurement, LCD update, UART-to-RS485 bridge, and watchdog supervision. Use Value: 12-bit ADC with internal reference ensures <±0.5% measurement accuracy; industrial temp rating guarantees reliability in control cabinets. |
| Smart Thermostat Display | Portable Gas Detector |
|
Use Scenario: Battery-operated HVAC thermostat with 32-segment LCD, ambient temperature/humidity sensing, and touch keys. IC Role / Device Role / Timing Role: Primary controller handling sensor reads, LCD rendering, capacitive key detection, and sleep/wake scheduling. Use Value: On-chip key return (KR0–KR7) and programmable buzzer outputs (PCLBUZ0/1) enable full UI without external ASIC; SNOOZE mode minimizes active power during display hold. |
Use Scenario: Intrinsically safe handheld gas detector with electrochemical sensor, 24-segment LCD, audible alarm, and low-power wake-on-event. IC Role / Device Role / Timing Role: Safety-critical controller performing sensor conditioning, alarm threshold comparison, LCD update, and low-power monitoring. Use Value: Dual comparator channels (IVCMP0/1) allow simultaneous gas concentration and fault voltage monitoring; LVD with 12-level detection enables precise brown-out protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F111NFGLA#U0 | 96 KB flash, 12 KB RAM, same 85-pin VFLGA package and peripheral set | Requires larger code footprint; suitable when bootloader or OTA update space needed | Select when >64 KB application code size or additional RAM for complex UI buffers is required |
| R5F110NEGLA#U0 | Includes USB 2.0 function controller (full/low-speed), identical memory and peripherals otherwise | Enables PC connectivity for configuration, diagnostics, or firmware upload - adds USB PHY routing complexity | Choose only if USB host/device interface is mandatory; otherwise R5F111NEGLA#U0 reduces layout and certification effort |
Compared with R5F111NFGLA#U0, the R5F111NEGLA#U0 trades flash/RAM headroom for cost-sensitive designs; versus R5F110NEGLA#U0, it removes USB to simplify EMI compliance, reduce bill-of-materials, and eliminate USB-specific layout constraints - ideal for standalone LCD instruments.
Availability
R5F111NEGLA#U0 is available at Aetrix Electronics and suitable for medical glucose monitors, industrial panel meters, smart thermostats, and portable gas detectors requiring stable component supply across extended production lifecycles.
Supply support for R5F111NEGLA#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 human interface devices, integrating specialized peripherals like LCD drivers, key scanners, and precision analog blocks to replace discrete component solutions.
FAQ
Does R5F111NEGLA#U0 support USB functionality?
No, R5F111NEGLA#U0 is a USB-disabled variant of the RL78/L1C family. Its ordering code begins with "111", indicating no USB controller; USB-capable equivalents like R5F110NEGLA#U0 use "110". The UDM, UDP, UREGC, and UVBUS pins are non-functional and must remain unconnected in R5F111NEGLA#U0 designs.
What LCD configurations does R5F111NEGLA#U0 support?
R5F111NEGLA#U0 supports 44 segment × 4 common LCD drive using internal voltage boosting, capacitor-split, or external resistor-division methods. The exact segment count depends on COM pin usage: 44 segments with 4 commons (pins COM0–COM3), or up to 52 segments with 8 commons (COM0–COM7) - confirmed in the RL78/L1C datasheet Section 1.1.
What is the maximum operating frequency and associated power consumption of R5F111NEGLA#U0?
R5F111NEGLA#U0 operates up to 24 MHz using the high-speed on-chip oscillator (±1.0% accuracy), delivering 33 DMIPS. At this speed, typical active current is 112.5 μA/MHz (2.7 mA total), while HALT mode draws 1.23 μA and STOP mode with RTC2+LVD consumes just 0.68 μA - values measured per datasheet Rev.2.40 conditions.
How many analog input channels are available on R5F111NEGLA#U0, and what ADC resolution options exist?
R5F111NEGLA#U0 provides 12 analog input channels (ANI0–ANI6, ANI16–ANI21). The A/D converter supports 12-bit resolution when VDD ≥ 2.4 V, and 8/10-bit resolution at lower VDD (1.6–3.6 V). An internal reference voltage (TYP. 1.45 V) and integrated temperature sensor are also accessible via the same ADC module.
Is R5F111NEGLA#U0 pin-compatible with other RL78/L1C variants in the 85-pin VFLGA package?
Yes, all 85-pin VFLGA RL78/L1C variants - including R5F110NEGLA#U0 (with USB) and R5F111NEGLA#U0 (without USB) - share identical mechanical pinouts and electrical characteristics for common signals (power, reset, clocks, GPIO, LCD, analog). USB-specific pins (UDM, UDP, etc.) are no-connect on R5F111NEGLA#U0 but do not affect PCB layout compatibility.
R5F111NEGLA#U0 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 11x8/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F111NEGLA#U0 FAQ
1.How can I place an order for R5F111NEGLA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F111NEGLA#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 R5F111NEGLA#U0 reliable?
The price and inventory of R5F111NEGLA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F111NEGLA#U0 is usually 5 days.
3.What payment methods are accepted for R5F111NEGLA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F111NEGLA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F111NEGLA#U0?
R5F111NEGLA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F111NEGLA#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 R5F111NEGLA#U0?
For technical support, including R5F111NEGLA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F111NEGLA#U0 requirements.
6.How does Aetrix verify that R5F111NEGLA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F111NEGLA#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 R5F111NEGLA#U0 meets industry standards.
7.What is the process for return or replacement of R5F111NEGLA#U0?
All R5F111NEGLA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F111NEGLA#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 R5F111NEGLA#U0 part is unused and in its original packaging.
Return procedure for R5F111NEGLA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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