Renesas R5F110NGALA#W0

Overview

R5F110NGALA#W0 from Renesas is an RL78/L1C 85-pin VFLGA microcontroller with integrated LCD controller/driver, 12-bit A/D converter (VDD ≥ 2.4 V), USB 2.0 function controller (full/low-speed), 96 KB flash, 10 KB RAM, and true low-power operation (112.5 μA/MHz active, 0.68 μA RTC2+LVD). It targets battery-powered LCD-based medical devices, smart meters, and portable industrial HMI.

For engineers reviewing the R5F110NGALA#W0 datasheet, R5F110NGALA#W0 pinout, R5F110NGALA#W0 application, or R5F110NGALA#W0 equivalent, key selection criteria include USB 2.0 function support, 44–56 segment LCD drive capability, 12-bit ADC accuracy at 2.4–3.6 V, and VFLGA-85 package compatibility with high-density PCB layouts.

Technical Context

The R5F110NGALA#W0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction timing (0.04167 μs @ 24 MHz to 30.5 μs @ 32.768 kHz). It integrates a dedicated USB voltage regulator (UREGC/UVBUS pins), on-chip PLL for USB clock generation, and dual-clock domain operation (main + subsystem).

Its LCD controller supports internal voltage boosting, capacitor split, and external resistor division methods, driving up to 56 segments and 8 commons. The 12-bit A/D converter operates only within 2.4–3.6 V VDD range and includes internal reference (1.45 V TYP) and temperature sensor.

Key Specifications

Pinout & Package

Package: 85-pin plastic VFLGA (7 × 7 mm, 0.65 mm pitch), tape-and-reel (#W0), suitable for automated SMT assembly and space-constrained designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F110NHALA#W0, the R5F110NGALA#W0 offers lower memory capacity but maintains identical low-power performance and peripheral integration; compared with R5F111NGALA#W0, it adds USB functionality at the cost of two dedicated analog pins and slightly higher active current.

Availability

R5F110NGALA#W0 is available at Aetrix Electronics and suitable for medical diagnostics, utility metering, and industrial HMI requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F110NGALA#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, and power solutions for automotive, industrial, and IoT markets.

The RL78/L1C product line is designed specifically for ultra-low-power LCD-based applications, integrating display control, precision sensing, and USB connectivity into a single chip to minimize system complexity.

FAQ

What is the maximum LCD segment count supported by the R5F110NGALA#W0?

The R5F110NGALA#W0 supports up to 56 segment outputs and 8 common outputs, enabling drive configurations such as 4×52, 5×44, or 8×40 multiplexed LCDs. Segment count depends on selected common count and bias method - actual usable segments are 44 when using 4 commons and 56 when using 8 commons, per datasheet Section 1.1.

Does the R5F110NGALA#W0 support USB device charging detection?

Yes, the R5F110NGALA#W0 complies with USB Battery Charging Specification Revision 1.2 and supports DCP (Dedicated Charging Port) and CDP (Charging Downstream Port) detection via its USB function controller. This enables automatic charger type identification without external ICs.

What are the valid operating voltage ranges for the 12-bit A/D converter in the R5F110NGALA#W0?

The 12-bit A/D converter in the R5F110NGALA#W0 requires VDD between 2.4 V and 3.6 V. Operation below 2.4 V disables 12-bit mode; the device defaults to 8/10-bit resolution. This constraint is explicitly defined in Section 1.1 "A/D converter" of the R01DS0192EJ0240 datasheet.

Can the R5F110NGALA#W0 operate in STOP mode while maintaining RTC2 and LVD functionality?

Yes, the R5F110NGALA#W0 achieves 0.68 μA typical current consumption in STOP mode with both RTC2 (real-time clock with calendar) and LVD (voltage detector) enabled. This is confirmed in the "Ultra-low power consumption technology" section and electrical characteristics table of the datasheet.

Is the R5F110NGALA#W0 pin-compatible with other RL78/L1C variants in the 85-pin VFLGA package?

Yes, all RL78/L1C 85-pin VFLGA variants - including R5F110MEALA#W0 through R5F110PJALA#W0 and R5F111xxxLA#W0 - share identical pinouts and mechanical footprint. Function allocation (e.g., USB vs. no USB) differs per variant, but PCB layout is fully reusable across the family.