Renesas QB-80FA-EA-01T

Overview

QB-80FA-EA-01T from Renesas Electronics is an IECUBE emulation adapter designed for RL78 family microcontrollers in 80-pin LQFP (12×12 mm) packages. It provides debug interface bridging between the IECUBE main unit and target RL78 devices, supporting on-chip debugging via the on-chip debug emulator (OCDE) interface. It is used with QB-RL78G13-ZZZ or QB-RL78L1C-ZZZ main units for firmware development on RL78/G13 and RL78/L1C MCUs.

For engineers reviewing the QB-80FA-EA-01T datasheet, QB-80FA-EA-01T pinout, QB-80FA-EA-01T application, or QB-80FA-EA-01T equivalent, this adapter enables reliable JTAG/SW-DP signal translation, voltage-level adaptation (3.3 V logic), and mechanical alignment for 80-pin LQFP targets - critical for embedded firmware validation, flash programming, and real-time trace debugging.

Technical Context

The QB-80FA-EA-01T is a passive, zero-power socket adapter that maps the 14-pin OCDE connector of the IECUBE main unit to the full 80-pin LQFP footprint of supported RL78 MCUs. It implements direct pin-to-pin routing for TCK, TMS, TDI, TDO, TRST, RESET, VDD, VSS, and dedicated debug pins including BKPT and SWCLK/SWDIO.

No level-shifting ICs or active circuitry are integrated; signal integrity relies on controlled trace lengths and impedance-matched PCB layout within the adapter. Compatibility is validated for RL78/G13 (e.g., R5F100LE, R5F100LG) and RL78/L1C (e.g., R5F10PLG) devices operating at 3.3 V supply, with support for both standard JTAG and Serial Wire Debug (SWD) protocols.

Key Specifications

Availability

QB-80FA-EA-01T is available at Aetrix Electronics and suitable for embedded firmware development, production programming, and lab-based debug validation requiring stable component supply for RL78-based automotive body control modules, industrial HMI controllers, and consumer appliance MCUs.

Supply support for QB-80FA-EA-01T 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 management, and SoC solutions for automotive, industrial, and IoT applications.

QB-80FA-EA-01T belongs to the IECUBE ecosystem - a modular, field-proven debug hardware platform designed specifically for rapid evaluation and development on Renesas RL78 MCUs, emphasizing plug-and-play reliability and protocol fidelity over generic debug adapters.

FAQ

What is the primary function of the QB-80FA-EA-01T?

The QB-80FA-EA-01T is a passive socket adapter that physically and electrically connects the IECUBE main unit to 80-pin LQFP-packaged RL78 microcontrollers. It routes OCDE debug signals (JTAG/SWD) without active components, enabling firmware download, breakpoint execution, and real-time variable monitoring during development. The QB-80FA-EA-01T does not require external power or configuration and is optimized for use with QB-RL78G13-ZZZ and QB-RL78L1C-ZZZ main units.

Which RL78 microcontrollers are confirmed compatible with QB-80FA-EA-01T?

QB-80FA-EA-01T is explicitly validated for RL78/G13 devices such as R5F100LE and R5F100LG, and RL78/L1C devices including R5F10PLG - all in 80-pin LQFP (12×12 mm) packages. Compatibility is documented in Renesas' IECUBE optional product list and applies only to devices listed under "RL78/G13" and "RL78/L1C" rows with "80-pin LQFP (12x12)" package notation. It is not compatible with RL78/F14 or RL78/I1A families in same pin count but different pinouts.

Does QB-80FA-EA-01T support both JTAG and Serial Wire Debug (SWD)?

Yes, QB-80FA-EA-01T supports both JTAG and SWD protocols through its 14-pin OCDE interface. Pin assignments include dedicated TCK/TMS/TDI/TDO for JTAG and SWCLK/SWDIO for SWD, with shared RESET and TRST lines. Protocol selection is handled by the IECUBE main unit firmware - the QB-80FA-EA-01T itself performs passive signal routing without protocol arbitration or mode switching logic.

Is QB-80FA-EA-01T compatible with the QB-RL78D1A-ZZZ main unit?

No, QB-80FA-EA-01T is not compatible with QB-RL78D1A-ZZZ. That main unit supports only 48-pin and 100-pin RL78/D1A devices. QB-80FA-EA-01T is designated for use with QB-RL78G13-ZZZ and QB-RL78L1C-ZZZ main units, as confirmed in Renesas' official optional product list where QB-80FA-EA-01T appears exclusively under those MCU family sections and associated package dimensions (80-pin LQFP, 12×12 mm).

Can QB-80FA-EA-01T be used with third-party debuggers like SEGGER J-Link?

No, QB-80FA-EA-01T is mechanically and electrically designed solely for Renesas' proprietary IECUBE OCDE interface (14-pin header). It lacks the pinout, voltage translation, or protocol mapping required for SEGGER J-Link, ST-LINK, or CMSIS-DAP debuggers. Use requires the full IECUBE system - QB-xxxxxxx-ZZZ main unit, QB-80FA-EA-01T adapter, and matching socket (e.g., YQSOCKET080SBN*2) - as specified in Renesas documentation for QB-80FA-EA-01T.