Renesas R5F10KBCANA#U0

Overview

R5F10KBCANA#U0 from Renesas Electronics is a 32-pin, 16-bit RL78/G1C microcontroller with integrated USB function controller (no host capability), 32 KB flash, 2 KB data flash, 5.5 KB RAM, and ultra-low-power operation down to 0.57 µA in RTC+LVD halt mode. It operates from 2.4 V to 5.5 V, delivers 31 DMIPS at 24 MHz, and targets USB-powered consumer devices requiring embedded control, analog sensing, and battery-aware firmware.

For engineers reviewing the R5F10KBCANA#U0 datasheet, R5F10KBCANA#U0 pinout, R5F10KBCANA#U0 application, or R5F10KBCANA#U0 equivalent, key selection criteria include its 32-pin HWQFN (5 × 5 mm) package, USB 2.0 full-speed (12 Mbps) function-only compliance, 9-channel 8/10-bit ADC, and support for Apple MFi charging modes - all within −40°C to +85°C ambient range.

Technical Context

The R5F10KBCANA#U0 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and CISC instruction set enabling 86% of instructions in 1–2 clock cycles. Its USB subsystem is strictly function-only (no host controller), compliant with USB 2.0, Battery Charging Specification Rev. 1.2, and Apple MFi 2.1A/1.0A modes - requiring MFi licensing for implementation.

Power management includes multiple low-power modes: Stop (0.23 µA RAM-retained), Halt (0.57 µA RTC+LVD), and operating current as low as 71 µA/MHz. Clocking supports high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature), PLL (24 MHz output), and external crystal (X1/X2).

Key Specifications

Pinout & Package

Package: 32-pin plastic HWQFN (5 × 5 mm, 0.5 mm pitch) with exposed die pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB function controller applications.

Compared with R5F10JBCANA#U0, the R5F10KBCANA#U0 reduces pin count and eliminates host-mode circuitry - lowering layout complexity and cost for pure USB-peripheral designs. Against RL78/G1D, it trades wireless capability for lower power and smaller flash footprint, making it optimal for cost-sensitive, battery-constrained USB endpoints.

Availability

R5F10KBCANA#U0 is available at Aetrix Electronics and suitable for USB-C powered smart sensors, HID peripherals, battery charging adapters, and industrial data loggers requiring stable component supply and long lifecycle support.

Supply support for R5F10KBCANA#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 Corporation is a global semiconductor manufacturer headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G1C product line is designed specifically for ultra-low-power USB-peripheral applications - integrating USB function controllers, precision analog, and robust safety features into compact packages for consumer and industrial edge devices.

FAQ

What USB specifications does the R5F10KBCANA#U0 support?

The R5F10KBCANA#U0 supports USB 2.0 full-speed (12 Mbps) and low-speed (1.5 Mbps) operation as a function-only device. It complies with Battery Charging Specification Revision 1.2 and implements Apple Inc. MFi 2.1A/1.0A charging modes - though MFi licensing is mandatory for deployment. It does not support USB host functionality or high-speed (480 Mbps) modes.

Does the R5F10KBCANA#U0 include an on-chip debugger interface?

Yes, the R5F10KBCANA#U0 includes a 1-wire on-chip debug function accessible via TOOL0 (P40). This allows in-circuit debugging, flash programming, and real-time trace without external JTAG/SWD hardware. However, Renesas advises against using this feature in mass-produced end products due to flash rewrite endurance limits.

What is the lowest power consumption mode achievable with the R5F10KBCANA#U0?

The R5F10KBCANA#U0 achieves 0.57 µA in Halt mode with RTC and LVD enabled, and 0.23 µA in Stop mode with RAM retention. These values are measured at VDD = 3.0 V and TA = 25°C. The MCU supports snooze mode for selective peripheral wake-up, enabling rapid resumption from ultra-low-power states without full CPU restart.

Can the R5F10KBCANA#U0 operate from a USB VBUS supply directly?

Yes, the R5F10KBCANA#U0 supports 2.4 V to 5.5 V single-supply operation, making it compatible with direct USB VBUS (4.75–5.25 V) connection. Its UVDD pin accepts regulated USB power, and UVBUS enables VBUS presence detection - allowing the device to self-configure as powered or battery-backed. External regulation is optional but recommended for noise-sensitive analog operation.

How many analog input channels does the R5F10KBCANA#U0 provide?

The R5F10KBCANA#U0 provides 9 analog input channels: ANI0–ANI4 (P20–P24), ANI16–ANI17 (P01–P00), ANI19 (P120), plus AVREFP/AVREFM (P20/P21) for reference voltage inputs. All channels support 8/10-bit resolution with a minimum conversion time of 2.1 µs and selectable internal 1.45 V reference or external reference sourcing.