Renesas R5F11BGCAFB#10

Overview

R5F11BGCAFB#10 from Renesas Electronics is a 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), 32 KB flash, 5.5 KB RAM RL78/G1F 16-bit microcontroller operating at up to 32 MHz with true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 17-channel 8/10-bit ADC, dual UART/LIN, and integrated PGA - deployed in battery-powered industrial sensor nodes and smart metering front-ends.

For engineers reviewing the R5F11BGCAFB#10 datasheet, R5F11BGCAFB#10 pinout, R5F11BGCAFB#10 application, or R5F11BGCAFB#10 equivalent, key selection criteria include its 48-pin LFQFP package with 44 I/Os, 32 KB code flash + 4 KB data flash with 1M-cycle endurance, real-time D/A output capability, and support for IrDA, CSI, and simplified I²C interfaces in a −40°C to +85°C ambient range.

Technical Context

The R5F11BGCAFB#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a high-speed on-chip oscillator (±1.0% accuracy across 1.8–5.5 V), low-speed oscillator (15 kHz), and subsystem clock (32.768 kHz) for RTC calendar and alarm functions.

Its peripheral set includes Timer Array Unit (TAU) with 4 channels, Timer RD (2 PWM-capable), Timer RG, Timer RX, and Event Link Controller (ELC) supporting 22 event sources linked to peripherals - enabling deterministic low-latency response without CPU intervention for motor control timing, sensor sampling triggers, and LIN bus frame synchronization.

Key Specifications

Pinout & Package

48-pin LFQFP (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad; requires 0.47–1 μF capacitor between REGC and VSS. Pin count and I/O mapping match Table 1-1 ordering info for R5F11BGx family 48-pin variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F11BGEAFB#10, the R5F11BGCAFB#10 trades flash capacity for cost and footprint efficiency; compared with R5F11BLCAFB#10, it reduces pin count and complexity for space-constrained applications where 44 I/Os and single-domain power suffice.

Availability

R5F11BGCAFB#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and home appliance control systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for R5F11BGCAFB#10 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G1F product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial and consumer devices requiring rich analog integration and robust real-time control.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R5F11BGCAFB#10?

The R5F11BGCAFB#10 operates at up to 32 MHz using the high-speed on-chip oscillator, supported across VDD = 1.8 V to 5.5 V. At 1.6 V minimum supply, maximum frequency is reduced to 4 MHz in LV mode. The datasheet specifies ±1.0% oscillator accuracy over this full voltage and temperature range (−40°C to +85°C), making R5F11BGCAFB#10 suitable for precision timing in wide-input-voltage applications without external crystals.

Does the R5F11BGCAFB#10 support hardware-based encryption or secure boot features?

The R5F11BGCAFB#10 does not integrate dedicated cryptographic accelerators or secure boot ROM. It provides flash security functions including block erase/write prohibition and flash shield window to prevent unauthorized access to code memory. Secure firmware updates must be implemented in software using the self-programming capability and external trusted elements; R5F11BGCAFB#10 relies on external ICs or host-side verification for full secure boot chains.

How many analog input channels are available on the R5F11BGCAFB#10, and what reference options does its ADC support?

The R5F11BGCAFB#10 features 17 analog input channels (ANI0–ANI7, ANI16–ANI24) with an 8/10-bit SAR ADC. Reference options include external AVREFP/AVREFM pins, internal 1.45 V reference, and VDD as reference - enabling flexible sensor interfacing from ratiometric bridges to precision voltage measurements. The ADC operates across the full 1.6–5.5 V supply range without performance degradation.

Can the R5F11BGCAFB#10 generate precise audio-frequency tones using its built-in peripherals?

Yes - the R5F11BGCAFB#10 supports audio-tone generation via two independent programmable clock/buzzer outputs (PCLBUZ0/PCLBUZ1) offering frequencies from 2.44 kHz to 10 MHz, plus an 8-bit DAC with real-time output capability. Combined with the Event Link Controller, these can be synchronized to timer events for glitch-free tone transitions, making R5F11BGCAFB#10 suitable for UI feedback in appliances and medical devices without external audio ICs.

What debug and programming interfaces are supported by the R5F11BGCAFB#10 during development?

The R5F11BGCAFB#10 supports on-chip debugging via the single-wire SWD interface using the TOOL0/TOOLRxD/TOOLTxD pins, compatible with Renesas E2 emulator and third-party debuggers. Programming is performed through the same interface using the on-chip debug ROM, with no need for external programmers. Flash self-programming is enabled via the boot swap function, allowing field firmware updates while preserving critical configuration data in protected sectors.