Renesas R5F10KGCGFB#V0

Overview

R5F10KGCGFB#V0 from Renesas Electronics is a 48-pin LFQFP-packaged 16-bit RL78/G1C microcontroller with integrated USB function controller (no host mode), 32 KB flash, 2 KB data flash, 5.5 KB RAM, and ultra-low-power operation down to 0.57 µA in Halt mode (RTC + LVD). It delivers 31 DMIPS at 24 MHz and targets USB-powered industrial sensor nodes, portable medical devices, and battery-operated human interface peripherals.

For engineers reviewing the R5F10KGCGFB#V0 datasheet, R5F10KGCGFB#V0 pinout, R5F10KGCGFB#V0 application, or R5F10KGCGFB#V0 equivalent, key selection criteria include its USB function-only compliance (BC 1.2, Apple MFi 2.1A/1.0A), 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch) package, −40°C to +105°C industrial temperature grade, and integrated 10-bit ADC with 9 channels and on-chip temperature sensor.

Technical Context

The R5F10KGCGFB#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 supports full-speed (12 Mbps) and low-speed (1.5 Mbps) device-mode operation only, with dedicated UVDD/UVBUS power rails and UOVRCUR/UVBUSEN overcurrent detection logic.

Power management includes dual oscillators (24 MHz ±1% HOCO, 32.768 kHz XTAL), POR/LVD with 9 voltage thresholds, and multiple low-power modes: Stop (0.23 µA), Halt (0.57 µA), and Snooze. The peripheral set integrates a 4-channel TAU timer, RTC with calendar/alarm, 12-bit interval timer, and 2-channel DMA for autonomous data movement between USB buffers and memory.

Key Specifications

Pinout & Package

Package: 48-pin plastic LFQFP (7 × 7 mm, 0.5 mm pitch), lead-free, RoHS-compliant. 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 R5F10JGCGFB#V0, the R5F10KGCGFB#V0 reduces pin count and eliminates host-mode circuitry to lower system cost and power in pure device applications; versus STM32F072CBT6, it offers superior low-power performance and integrated analog features at the expense of ARM software compatibility.

Availability

R5F10KGCGFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, USB human interface devices, and smart charging peripherals requiring stable component supply across extended temperature ranges.

Supply support for R5F10KGCGFB#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 global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.

The RL78/G1C product line is engineered for ultra-low-power USB-connected edge devices, integrating function-specific peripherals like USB PHY, battery charging logic, and robust safety features to accelerate development of certified industrial and medical products.

FAQ

What USB specifications does the R5F10KGCGFB#V0 support?

The R5F10KGCGFB#V0 supports USB 2.0 full-speed (12 Mbps) and low-speed (1.5 Mbps) device-mode operation only. It complies with Battery Charging Specification Revision 1.2 and implements Apple Inc. MFi 2.1A/1.0A charging modes. Host-mode functionality is not present - this is a function-controller-only device. All USB signaling occurs on UDP0/UDM0, with UVDD and UVBUS supporting the integrated USB voltage regulator.

Does the R5F10KGCGFB#V0 include an internal oscillator accurate enough for USB timing?

Yes, the R5F10KGCGFB#V0 includes a high-speed on-chip oscillator (HOCO) rated at 24 MHz with ±1% accuracy across 2.4–5.5 V supply and −40°C to +105°C temperature range. This meets USB full-speed timing requirements without needing an external crystal, simplifying layout and reducing BOM cost. The oscillator is factory-trimmed and does not require user calibration.

What is the lowest power consumption mode available on the R5F10KGCGFB#V0?

The lowest power mode is Halt mode with RTC + LVD enabled, consuming 0.57 µA typical at 25°C. In this state, the CPU and most peripherals are stopped, but the real-time clock continues counting and the low-voltage detector remains active for brownout monitoring. Wake-up is possible via RTC alarm, external interrupt (e.g., USB suspend/resume), or key return input - making it ideal for battery-backed applications requiring long-term timekeeping.

How many analog input channels does the R5F10KGCGFB#V0 support, and what resolution do they offer?

The R5F10KGCGFB#V0 supports 9 analog input channels (ANI0–ANI7, ANI19) with selectable 8-bit or 10-bit resolution. Conversion time is as fast as 2.1 µs, and the ADC includes an internal 1.45 V reference voltage plus support for AVREFP/AVREFM external references. Channel ANI19 is routed to P120, enabling direct connection to external sensors without multiplexer routing overhead.

Is the R5F10KGCGFB#V0 pin-compatible with other RL78/G1C variants in the same package?

Yes, the R5F10KGCGFB#V0 is pin-compatible with all 48-pin LFQFP RL78/G1C variants including R5F10JGCGFB#V0 and R5F10KGCAFB#V0. Pin functions match identically across the family - for example, UDP0/UDM0 occupy pins 1/2, UVDD is pin 4, and P70–P75 (KR0–KR5) are pins 43–48. Differences exist only in enabled peripherals (e.g., host-mode signals are no-connect on R5F10KGCGFB#V0), allowing drop-in replacement where USB host functionality is unused.