Renesas R5F110PFAFB#30

Overview

R5F110PFAFB#30 from Renesas is a 100-pin, 96 KB Flash, USB-enabled RL78/L1C microcontroller with integrated LCD controller/driver (56-segment/8-common), 12-bit A/D converter (13-channel), and true low-power operation (0.68 μA in RTC2+LVD mode). It operates from 1.6–3.6 V, delivers 33 DMIPS at 24 MHz, and targets battery-powered LCD display systems such as smart meters and portable medical devices.

For engineers reviewing the R5F110PFAFB#30 datasheet, R5F110PFAFB#30 pinout, R5F110PFAFB#30 application, or R5F110PFAFB#30 equivalent, key selection criteria include USB 2.0 full-speed capability, on-chip LCD voltage boosting, segment/common drive flexibility, and ultra-low power HALT/STOP/SNOOZE modes for extended battery life.

Technical Context

The R5F110PFAFB#30 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 2.0 function controller supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) transfer, compliant with Battery Charging Specification Rev. 1.2.

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 at VDD ≥2.4 V and includes internal reference (1.45 V TYP) and temperature sensor, while the DTC and ELC enable efficient peripheral event chaining without CPU intervention.

Key Specifications

Pinout & Package

100-pin plastic LFQFP (14 × 14 mm, 0.5 mm pitch); RoHS-compliant, tray packaging (#30).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F110PFAFB#30, R5F110PGAFB#30 provides headroom for future firmware expansion without changing hardware, while R5F111PFAFB#30 removes USB circuitry entirely-reducing component count, layout complexity, and qualification effort for closed-system displays.

Availability

R5F110PFAFB#30 is available at Aetrix Electronics and suitable for smart energy meters, portable medical monitors, home appliance control panels, and industrial HMI display modules requiring stable component supply and long-term lifecycle support.

Supply support for R5F110PFAFB#30 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 for ultra-low-power LCD-based applications-integrating display drivers, precision analog, and USB connectivity into a single chip to minimize system cost and power in consumer and industrial displays.

FAQ

What is the maximum LCD segment count supported by the R5F110PFAFB#30?

The R5F110PFAFB#30 supports up to 56 segment outputs (SEG0–SEG55) and 8 common outputs (COM0–COM7), enabling static or multiplexed LCDs up to 1/4 duty cycle. This configuration accommodates 4-digit 7-segment displays with icons or 2×16 character alphanumeric modules. Segment mapping is fixed per pin assignment in the datasheet; no runtime reconfiguration of segment count is possible.

Does the R5F110PFAFB#30 support USB device charging detection per BC1.2?

Yes, the R5F110PFAFB#30 USB 2.0 function controller complies with Battery Charging Specification Revision 1.2. It supports DCP (Dedicated Charging Port) detection via shorting D+ and D−, enabling automatic recognition of wall adapters and high-current charging sources without host interaction-critical for portable medical and metering devices.

What are the operating voltage requirements for the 12-bit A/D converter in the R5F110PFAFB#30?

The 12-bit A/D converter in the R5F110PFAFB#30 requires VDD ≥ 2.4 V to operate at full 12-bit resolution. At VDD = 1.6–2.3 V, only 8/10-bit modes are available. The internal reference voltage is 1.45 V (TYP), and the integrated temperature sensor is calibrated for use across the full -40°C to +85°C range without external compensation.

How does the R5F110PFAFB#30 achieve 0.68 μA RTC2 + LVD current consumption?

The R5F110PFAFB#30 achieves 0.68 μA in RTC2 + LVD mode by powering only the real-time clock module (calendar, alarm, correction), low-voltage detector circuit, and associated wakeup logic-while shutting down the CPU core, flash, RAM, and all peripherals. This state retains calendar accuracy and enables wake-on-LVD event or RTC alarm, making it ideal for decade-long battery operation in utility meters.

Is the R5F110PFAFB#30 pin-compatible with other RL78/L1C 100-pin variants?

Yes, all RL78/L1C 100-pin LFQFP variants-including R5F110PEAFB#30, R5F110PGAFB#30, and R5F111PFAFB#30-share identical pinouts and mechanical footprint. Signal functions may differ per variant (e.g., USB pins are no-connect on R5F111x), but PCB layout, decoupling, and mechanical design remain fully reusable across the family.