Renesas R5F11BGCAFB#50

Overview

R5F11BGCAFB#50 from Renesas is a 48-pin LFQFP, 32/64 KB Flash, 5.5 KB RAM RL78/G1F microcontroller operating at up to 32 MHz with true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 1.6–5.5 V supply, and integrated 17-channel 8/10-bit ADC, dual DAC, two comparators, and programmable gain amplifier - used in battery-powered industrial sensor nodes and smart metering interfaces.

For engineers reviewing the R5F11BGCAFB#50 datasheet, R5F11BGCAFB#50 pinout, R5F11BGCAFB#50 application, or R5F11BGCAFB#50 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm package, 64 KB flash / 4 KB data flash / 5.5 KB RAM memory map, 17 analog input channels, dual 8-bit DAC outputs, and support for LIN-bus UART, I²C, CSI, and IrDA serial protocols in industrial temperature grade (−40°C to +105°C).

Technical Context

The R5F11BGCAFB#50 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a high-speed on-chip oscillator (±1.0% accuracy across 1–32 MHz), low-speed oscillator (15 kHz), and subsystem clock (32.768 kHz) for RTC and power management.

Its peripheral set includes Timer Array Unit (TAU) with 4 channels, Timer RD (2 PWM-capable), Timer RG, Timer RX, and Timer RJ - enabling precise timing, PWM generation, and event-triggered actions via Event Link Controller (ELC) with 22 event sources and chain transfer support through Data Transfer Controller (DTC).

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), lead-free, RoHS-compliant, industrial temperature grade (G).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F11BGEAFB#50 and R5F11BLCAFB#50, the R5F11BGCAFB#50 delivers optimal balance of 32 KB flash, 48-pin footprint, and full peripheral integration - reducing BOM cost and PCB area while retaining LIN, RTC, and ultra-low-power capability for mid-tier industrial controls.

Availability

R5F11BGCAFB#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and automotive body electronics requiring stable component supply across extended product lifecycles.

Supply support for R5F11BGCAFB#50 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 industrial, automotive, and IoT markets.

The RL78/G1F product line targets cost-sensitive, ultra-low-power embedded applications - delivering integrated analog, communication, and timing functions in compact packages for battery-operated and energy-conscious systems.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F11BGCAFB#50?

The R5F11BGCAFB#50 operates at up to 32 MHz using its high-speed on-chip oscillator and supports a wide supply range of 1.6 V to 5.5 V. Its power-on-reset circuit activates at 1.51 V ±0.04 V (−40°C to +85°C), and the voltage detector offers 14 selectable thresholds between 1.67 V and 4.00 V for reliable brown-out protection. The R5F11BGCAFB#50 maintains full functionality across this range, including ADC and DAC operation.

Does the R5F11BGCAFB#50 support LIN bus communication, and which UART channel implements it?

Yes, the R5F11BGCAFB#50 supports LIN bus communication via UART0 (RxD0/TxD0 pins), which includes dedicated LINSEL functionality for automatic sync field detection and break signal generation. This enables direct connection to LIN transceivers without external logic. The R5F11BGCAFB#50's UART0 complies with LIN 2.2A specifications and supports baud rates up to 20 kbps - essential for automotive body control modules and industrial sub-networks.

How many analog input channels does the R5F11BGCAFB#50 support, and what is their resolution?

The R5F11BGCAFB#50 supports 17 analog input channels (ANI0–ANI7, ANI16–ANI24) with selectable 8-bit or 10-bit resolution. Conversion is referenced to VDD or internal 1.45 V reference, and the ADC operates across the full 1.6–5.5 V supply range. Channels ANI0 and ANI1 serve as AVREFP/AVREFM for external reference configuration, while ANI18 (IVREF0) provides comparator reference voltage - all verified in the RL78/G1F datasheet Rev.1.30.

What low-power modes are available on the R5F11BGCAFB#50, and what is the typical current consumption in STOP mode?

The R5F11BGCAFB#50 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with RTC and LVD enabled, it consumes just 0.57 μA (typical) at VDD = 3.0 V and TA = 25°C. HALT mode draws 66 μA/MHz during active operation, and SNOOZE allows selected peripherals (e.g., ADC, UART) to run while CPU sleeps - enabling rapid wake-up with minimal latency. These values are measured per Renesas R01DS0246EJ0130 Rev.1.30.

Can the R5F11BGCAFB#50 perform background data flash rewriting while executing code from program memory?

Yes, the R5F11BGCAFB#50 supports background operation (BGO) for data flash memory: instructions can be executed from code flash while rewriting the 4 KB data flash region. This enables seamless firmware parameter updates or logging without halting application execution. The R5F11BGCAFB#50 guarantees 1,000,000 rewrite cycles (typical) at VDD = 1.8–5.5 V, and the flash shield window function prevents unauthorized access to protected sectors during BGO operations.