Renesas R5F107AEMSP#V0

Overview

R5F107AEMSP#V0 from Renesas Electronics is an RL78/L1A-series 16-bit microcontroller with integrated LCD controller/driver (45 segment × 8 common), 12-bit A/D and D/A converters (14/2 channels), rail-to-rail operational amplifiers (3 channels, 2 with analog MUX), and real-time clock 2 (RTC2) with calendar and alarm. It operates from 1.8 V to 3.6 V, delivers 33 DMIPS at 24 MHz, and targets ultra-low-power LCD-based consumer devices such as smart meters and portable medical displays.

For engineers reviewing the R5F107AEMSP#V0 datasheet, R5F107AEMSP#V0 pinout, R5F107AEMSP#V0 application, or R5F107AEMSP#V0 equivalent, key selection criteria include its 100-pin LFQFP package, 128 KB flash + 8 KB data flash + 5.5 KB RAM memory configuration, true low-power HALT mode (0.68 μA), and integrated analog peripherals enabling single-chip LCD system control without external signal conditioning.

Technical Context

The R5F107AEMSP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.04167 μs at 24 MHz up to 30.5 μs at 32.768 kHz). Its power management includes HALT, STOP, and SNOOZE modes, POR/LVD reset circuitry, and dual-clock domains (high-speed on-chip oscillator up to 24 MHz and 32.768 kHz subsystem clock).

Analog subsystem integration includes a 12-bit A/D converter with internal 1.45 V reference and temperature sensor, a 12-bit D/A converter with 0.35 V–AVDD−0.47 V output range, programmable voltage reference (1.5/1.8/2.048/2.5 V), and three operational amplifiers - two with 4-input analog MUX for flexible signal routing in sensor front-ends.

Key Specifications

Pinout & Package

100-pin plastic LFQFP (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad (PLQP0100KB-B).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F107AEMSP#V0, R5F11MPGAFB#30 offers identical packaging and memory but reduced LCD flexibility, while RA2A1GBM20FB#AC0 provides modern 32-bit performance at the cost of LCD integration - making R5F107AEMSP#V0 optimal for cost-constrained, LCD-centric embedded systems requiring minimal external components.

Availability

R5F107AEMSP#V0 is available at Aetrix Electronics and suitable for smart energy meters, portable medical displays, home appliance control panels, and industrial HMI modules requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant manufacturing.

Supply support for R5F107AEMSP#V0 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with over 40 years of microcontroller innovation.

The RL78/L1A product line is engineered specifically for ultra-low-power LCD-based consumer and industrial applications, integrating analog peripherals, real-time clock, and LCD driver to minimize system component count and bill-of-materials cost.

FAQ

What is the maximum operating frequency and power consumption of the R5F107AEMSP#V0?

The R5F107AEMSP#V0 operates at up to 24 MHz using its high-speed on-chip oscillator with ±1.0% accuracy across -40°C to +85°C. In active mode, it consumes 70.8 μA per MHz; in HALT mode with RTC2 and LVD enabled, it draws just 0.68 μA - enabling multi-year battery operation in metering and portable devices. These values are measured under specified VDD = 1.8–3.6 V conditions and are confirmed in the R01DS0280EJ0130 datasheet.

Does the R5F107AEMSP#V0 support internal LCD voltage boosting?

Yes, the R5F107AEMSP#V0 supports internal voltage boosting for LCD operation, alongside capacitor split and external resistance division methods. This allows direct generation of boosted LCD bias voltages (e.g., VL1–VL4) from VDD without external charge pumps - simplifying PCB layout and reducing BOM count. Configuration is done via LCD control registers, and REGC must be decoupled with a 0.47–1 μF capacitor to VSS for stability.

How many analog peripherals are integrated into the R5F107AEMSP#V0?

The R5F107AEMSP#V0 integrates a comprehensive analog subsystem: a 14-channel 12-bit A/D converter with internal 1.45 V reference and temperature sensor, a 2-channel 12-bit D/A converter with 0.35 V to AVDD−0.47 V output range, three rail-to-rail operational amplifiers (two with 4-input analog MUX), and one comparator with selectable internal/external reference. All are fully functional within the 1.8–3.6 V supply range.

What package type and pin count does the R5F107AEMSP#V0 use?

The R5F107AEMSP#V0 uses a 100-pin plastic LFQFP package (14 mm × 14 mm, 0.5 mm pitch), designated PLQP0100KB-B. It provides 79 GPIOs including 14 analog inputs (ANI00–ANI13), 45 LCD segment outputs (SEG0–SEG44), 8 LCD common outputs (COM0–COM7), and dedicated analog terminals (AVDD, AVSS, AVREFP, AVREFM). This package is RoHS-compliant and optimized for high-density consumer and industrial PCBs.

Can the R5F107AEMSP#V0 operate from a single 3 V battery without external regulators?

Yes, the R5F107AEMSP#V0 is designed for direct single-supply operation from 1.8 V to 3.6 V - fully compatible with standard 3 V coin cells (e.g., CR2032) or two alkaline AA batteries (nominal 3 V). Its internal voltage regulator powers the LCD driver and analog blocks, and the REGC pin requires only a 0.47–1 μF capacitor to VSS. No external LDO or DC-DC converter is needed for basic operation, reducing system cost and footprint.