Renesas R5F11B7CANA#U0

Overview

R5F11B7CANA#U0 from Renesas Electronics is a 24-pin, 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 in RTC+LVD mode), 8-channel 8/10-bit ADC, 1-channel 8-bit DAC, and integrated comparators-designed for battery-powered consumer appliances and sensor interface modules.

For engineers reviewing the R5F11B7CANA#U0 datasheet, R5F11B7CANA#U0 pinout, R5F11B7CANA#U0 application, or R5F11B7CANA#U0 equivalent, this page delivers verified electrical specs, validated 24-pin HWQFN (4×4 mm, 0.5 mm pitch) package mapping, confirmed peripheral I/O assignment, and real-world use-case guidance for low-voltage embedded control.

Technical Context

The R5F11B7CANA#U0 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-accuracy ±1.0% on-chip oscillator (1–32 MHz), low-speed 15 kHz internal RC, and hardware event linking via ELC for deterministic peripheral triggering.

Power management includes HALT, STOP, and SNOOZE modes with on-chip POR and 14-level LVD. The device supports background data flash rewriting (1M write cycles), self-programming with boot swap, and real-time D/A output with 0 V to VDD range-enabling precise analog actuation without external DACs.

Key Specifications

Pinout & Package

Package: 24-pin HWQFN (4 × 4 mm, 0.5 mm pitch), exposed die pad (to be connected to VSS), REGC capacitor connection required (0.47–1 μF to VSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F11B7EANA#U0, the R5F11B7CANA#U0 offers identical low-power performance and peripheral set at lower memory cost; versus R5F11BBCANA#U0, it trades I/O count and analog channels for smaller footprint and lower component count in space-constrained designs.

Availability

R5F11B7CANA#U0 is available at Aetrix Electronics and suitable for smart home sensors, portable medical devices, industrial control panels, and energy metering modules requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for R5F11B7CANA#U0 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/G1F product line delivers true low-power embedded control with integrated analog peripherals and robust real-time capabilities-designed specifically for cost-sensitive, battery-operated consumer and industrial applications.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F11B7CANA#U0?

The R5F11B7CANA#U0 operates at up to 32 MHz using its high-speed on-chip oscillator. At this frequency, active current consumption is specified at 66 μA per MHz - resulting in approximately 2.1 mA total at 32 MHz with all peripherals enabled. This value is measured under typical conditions (VDD = 3.3 V, TA = 25°C) and scales linearly with clock speed, enabling precise power budgeting for dynamic voltage/frequency scaling.

Does the R5F11B7CANA#U0 support in-system programming and secure firmware updates?

Yes, the R5F11B7CANA#U0 supports full in-system programming via on-chip debug interface and includes flash security features: block erase prohibition, boot swap functionality, and flash shield window. These allow safe field updates while preventing unauthorized access to protected code regions - critical for certified medical or industrial firmware deployments where integrity and confidentiality are mandated.

How many analog input channels and what ADC resolution does the R5F11B7CANA#U0 provide?

The R5F11B7CANA#U0 provides 8 analog input channels with selectable 8-bit or 10-bit resolution. Conversion uses VDD as reference (AVREFP/AVREFM), supports internal 1.45 V reference, and includes built-in temperature sensor. All channels share a single SAR ADC engine, with conversion time of 1.2 μs per sample at 10-bit resolution - sufficient for real-time sensor monitoring in sub-100 ms control loops.

What packaging and lead-free compliance does the R5F11B7CANA#U0 have?

The R5F11B7CANA#U0 is supplied in a 24-pin HWQFN package (4 × 4 mm, 0.5 mm pitch) with exposed thermal pad, compliant with JEDEC standard MS-013AC. It meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free matte tin plating and halogen-free molding compound - ensuring environmental compliance for global consumer electronics shipments.

Can the R5F11B7CANA#U0 operate from a single 1.8 V supply, and what features remain functional?

Yes, the R5F11B7CANA#U0 operates across 1.6 V to 5.5 V, including 1.8 V nominal supply. At 1.8 V, the maximum CPU frequency is reduced to 16 MHz (LV mode), but all peripherals - including 8-channel ADC, 1-channel DAC, RTC, comparators, and UART - remain fully operational. The ±1.0% oscillator accuracy and 0.57 μA STOP mode are preserved, making it ideal for single-cell lithium or alkaline battery systems.