Renesas R5F10JGCGFB#V0

Overview

R5F10JGCGFB#V0 from Renesas Electronics is a 48-pin LFQFP-packaged 16-bit RL78/G1C microcontroller with integrated USB function controller (not host), 32 KB flash, 2 KB data flash, 5.5 KB RAM, and industrial-grade −40°C to +105°C operation. It delivers 31 DMIPS at 24 MHz, features a 24 MHz ±1% on-chip oscillator, 9-channel 8/10-bit ADC, RTC with calendar/alarm, and ultra-low power modes down to 0.57 µA (Halt with RTC + LVD).

For engineers reviewing the R5F10JGCGFB#V0 datasheet, R5F10JGCGFB#V0 pinout, R5F10JGCGFB#V0 application, or R5F10JGCGFB#V0 equivalent, this page provides verified technical context, package mapping, USB function controller limitations, low-power design trade-offs, and industrial-temperature validation for embedded USB peripheral systems.

Technical Context

The R5F10JGCGFB#V0 implements the RL78 16-bit CISC Harvard architecture with 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles and 16×16 multiply in 1 cycle. Its USB subsystem supports full-speed (12 Mbps) and low-speed (1.5 Mbps) device-only operation compliant with USB 2.0 and Battery Charging Specification Rev. 1.2.

It integrates dual serial interfaces (2× simplified I²C, 1× UART, 2× CSI), 4-channel 16-bit timer array (TAU), 12-bit interval timer, watchdog with window function, and safety features including RAM parity check, flash CRC, SFR write protection, and illegal memory access detection - all qualified for IEC/UL 60730 compliance.

Key Specifications

Pinout & Package

Package: 48-pin plastic LFQFP (7 × 7 mm, 0.5 mm pitch), industrial-grade (G suffix), tray packaging (#V0).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10JGCGFB#V0, R5F10JGCAFB#V0 adds host capability at higher BOM cost and layout complexity, while R5F10KGCGFB#V0 reduces memory capacity for lower unit cost - both retain identical USB function controller behavior and industrial temperature rating.

Availability

R5F10JGCGFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, USB battery chargers, USB HID peripherals, and field-upgradable embedded devices requiring stable component supply across extended temperature ranges.

Supply support for R5F10JGCGFB#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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G1C product line targets cost-sensitive, ultra-low-power USB-enabled embedded systems - emphasizing industrial reliability, integrated safety features, and simplified USB peripheral design without external PHY or level shifters.

FAQ

What USB modes does the R5F10JGCGFB#V0 support?

The R5F10JGCGFB#V0 supports USB function (device) mode only - full-speed (12 Mbps) and low-speed (1.5 Mbps) per USB 2.0 specification. It does not support USB host mode. The part includes native Battery Charging Specification Rev. 1.2 and Apple MFi 2.1A/1.0A charging mode detection, but requires enrollment in Apple's MFi program to implement those features. R5F10JGCGFB#V0 uses UDP0/UDM0 differential pair and UVBUS sensing for enumeration and power negotiation.

Does the R5F10JGCGFB#V0 include an integrated USB PHY?

Yes, the R5F10JGCGFB#V0 integrates a full-speed/low-speed USB PHY with internal termination and transceiver circuitry. It requires only external 1.5 kΩ pull-up resistor on UDP0 for device enumeration and standard USB connector wiring. No external PHY IC or level shifter is needed. The UVDD pin supplies regulated 3.3 V to the internal PHY, and must be decoupled with a 1 µF capacitor to VSS as specified in the datasheet.

What is the operating temperature range certified for the R5F10JGCGFB#V0?

The R5F10JGCGFB#V0 is rated for industrial operation from −40°C to +105°C, indicated by the "G" suffix in the part number. This rating is validated across all electrical specifications including flash programming, USB functionality, ADC accuracy, and low-power modes. It meets Renesas' G-grade qualification standards and is suitable for deployment in DIN-rail controllers, outdoor sensors, and industrial charging equipment without derating.

How much RAM is available for application use in the R5F10JGCGFB#V0?

The R5F10JGCGFB#V0 includes 5.5 KB of on-chip RAM, but approximately 1 KB is reserved when using the self-programming function for flash updates. Therefore, ~4.5 KB is typically available for application variables, stack, and heap. This RAM supports operand and instruction storage, retains data in all low-power modes (including Halt), and includes parity error checking for functional safety compliance.

Can the R5F10JGCGFB#V0 operate without an external crystal?

Yes, the R5F10JGCGFB#V0 can operate entirely from its high-speed on-chip oscillator (HOCO), which runs at 24 MHz with ±1% accuracy across 2.4–5.5 V and −20°C to +85°C. For RTC accuracy or sub-1% timing stability, an external 32.768 kHz crystal (XT1/XT2) is recommended. The HOCO eliminates BOM cost and board space for a main system crystal, making R5F10JGCGFB#V0 ideal for cost-sensitive USB peripherals where absolute timing precision is secondary to integration and power efficiency.