Renesas R5F10KGCAFB#V0

Overview

R5F10KGCAFB#V0 from Renesas Electronics is a 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 operation from 2.4 V to 5.5 V. It delivers 31 DMIPS at 24 MHz, supports USB full-speed (12 Mbps) and low-speed (1.5 Mbps) device mode, and targets battery-powered USB peripherals such as industrial sensors and embedded HID devices.

For engineers reviewing the R5F10KGCAFB#V0 datasheet, R5F10KGCAFB#V0 pinout, R5F10KGCAFB#V0 application, or R5F10KGCAFB#V0 equivalent, key selection criteria include its USB-only device-mode compliance, ultra-low power consumption (0.57 µA in Halt mode with RTC + LVD), 48-pin LFQFP package, and integrated 8/10-bit ADC with 9 channels - all critical for space-constrained, energy-sensitive USB peripheral designs.

Technical Context

The R5F10KGCAFB#V0 implements the RL78 16-bit CISC Harvard architecture with 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles. Its USB subsystem complies fully with USB 2.0 specification for function-only operation, supporting Battery Charging Specification Rev. 1.2 and Apple MFi 2.1A/1.0A charging modes when licensed.

Power management includes dual oscillators (24 MHz ±1% on-chip HOCO and 32.768 kHz XTAL), POR/LVD with 9 voltage thresholds, and multiple low-power modes: Stop (0.23 µA RAM-retained), Halt (0.57 µA with RTC+LVD), and Snooze. The 16-bit TAU timer, RTC with calendar/alarm, and 12-bit interval timer provide precise timing control without external components.

Key Specifications

Pinout & Package

48-pin plastic LFQFP (7 × 7 mm, 0.5 mm pitch) with exposed die pad (recommended connection to VSS). Pin functions validated per Renesas R01DS0348EJ0140 Rev.1.40, Section 1.3.2(2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10JGCAFB#V0, the R5F10KGCAFB#V0 reduces system power by eliminating host-mode circuitry and lowers BOM cost by removing redundant USB PHY resources; versus STM32F072CBT6, it delivers native MFi/BC 1.2 compliance and lower active current per DMIPS in USB device applications.

Availability

R5F10KGCAFB#V0 is available at Aetrix Electronics and suitable for industrial USB sensor nodes, USB HID control panels, and USB-C powered diagnostic tools requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for R5F10KGCAFB#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.

The RL78/G1C product line is designed specifically for ultra-low-power USB-connected embedded peripherals, integrating USB function controllers, precision analog, and robust safety features into compact 32/48-pin packages.

FAQ

What USB specifications does the R5F10KGCAFB#V0 support?

The R5F10KGCAFB#V0 supports USB 2.0 specification for function-only operation, including full-speed (12 Mbps) and low-speed (1.5 Mbps) modes. It complies with Battery Charging Specification Revision 1.2 and supports Apple Inc. MFi 2.1A/1.0A charging modes - but requires enrollment in Apple's MFi licensing program to implement those features.

Does the R5F10KGCAFB#V0 include an internal oscillator for USB timing?

Yes, the R5F10KGCAFB#V0 integrates a high-speed on-chip oscillator (HOCO) trimmed to ±1% accuracy at 24 MHz across −40°C to +85°C and 2.4–5.5 V supply. This oscillator meets USB full-speed timing requirements, eliminating the need for an external crystal in most USB device applications.

What is the lowest power consumption mode available on the R5F10KGCAFB#V0?

The R5F10KGCAFB#V0 achieves 0.57 µA in Halt mode with RTC and low-voltage detector (LVD) active - the deepest low-power state retaining real-time clock operation and voltage monitoring. This mode is ideal for USB peripherals requiring wake-on-USB-event or periodic sensor sampling.

Can the R5F10KGCAFB#V0 operate without an external crystal?

Yes, the R5F10KGCAFB#V0 can operate entirely from its internal 24 MHz HOCO for USB and main system clocking. An external crystal (X1/X2) is optional and only required if higher timing precision than ±1% is needed - for example, in audio synchronization or high-accuracy RTC applications.

How many analog input channels does the R5F10KGCAFB#V0 support?

The R5F10KGCAFB#V0 supports nine analog input channels (ANI0–ANI7 plus ANI19), configurable as 8-bit or 10-bit resolution with a minimum conversion time of 2.1 µs. It includes internal voltage reference (1.45 V) and on-chip temperature sensor, enabling standalone analog measurement without external components.