Renesas QB-80FB-EA-04T

Overview

QB-80FB-EA-04T from Renesas Electronics is an IECUBE socket adapter designed for RL78 family microcontrollers in 80-pin LQFP (12×12 mm) packages. It enables in-circuit debugging and programming via the IECUBE main unit, supports target voltage range of 1.8–5.5 V, and provides reliable signal integrity for SWD/JTAG emulation. It is used with RL78/G1E, RL78/F12, RL78/L1C, and other compatible 80-pin LQFP MCUs.

For engineers reviewing the QB-80FB-EA-04T datasheet, QB-80FB-EA-04T pinout, QB-80FB-EA-04T application, or QB-80FB-EA-04T equivalent, this adapter delivers verified mechanical alignment, low-capacitance signal routing, and drop-in compatibility with QB-80FB-YQ-01T and QB-80FB-NQ-01T probe variants - critical for production debug setup validation and firmware development continuity.

Technical Context

The QB-80FB-EA-04T is a passive, zero-power socket adapter that bridges the IECUBE main unit to target RL78 MCUs. It implements direct pin-to-pin mapping between the QB-80FB-YQ-01T emulation probe interface and the 80-pin LQFP footprint, preserving all debug signals (SWCLK, SWDIO, RESET, VDD, VSS) without level shifting or buffering.

It is mechanically optimized for 80-pin LQFP packages with 0.5 mm pitch and 12×12 mm body size, and is intended for use with Tokyo Eletech's YQPACK080SD socket pack (sold separately). No firmware or configuration is required - operation is fully transparent to the Renesas CS+ or e² studio IDE.

Key Specifications

Availability

QB-80FB-EA-04T is available at Aetrix Electronics and suitable for embedded firmware development, production line debug station deployment, and MCU qualification testing requiring stable component supply and long-term tooling continuity.

Supply support for QB-80FB-EA-04T 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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.

The QB-80FB-EA-04T belongs to the IECUBE ecosystem - a dedicated hardware debug platform for RL78 MCUs, engineered to simplify firmware bring-up, reduce debug cycle time, and ensure robust JTAG/SWD connectivity across diverse LQFP package variants.

FAQ

What is the primary function of the QB-80FB-EA-04T?

The QB-80FB-EA-04T is a passive socket adapter that physically and electrically interfaces the IECUBE main unit to 80-pin LQFP-packaged RL78 microcontrollers. It enables reliable SWD-based debugging and programming without modifying the target board layout. The QB-80FB-EA-04T requires no power, configuration, or drivers - it functions solely as a precision-mapped signal bridge for the QB-80FB-YQ-01T probe family.

Which RL78 microcontrollers are supported by the QB-80FB-EA-04T?

The QB-80FB-EA-04T supports all RL78 devices housed in 80-pin LQFP (12×12 mm, 0.5 mm pitch) packages, including R5F10FME, R5F10FLE, RL78/G1E, RL78/F12, RL78/L1C, and RL78/L13. Compatibility is confirmed by Renesas' official IECUBE optional product list and validated against mechanical footprint and debug signal pinout - not functional feature set.

Does the QB-80FB-EA-04T require a separate power supply or firmware update?

No. The QB-80FB-EA-04T is a passive adapter with no active circuitry, so it draws no power and contains no firmware. It operates entirely through direct pin mapping between the emulation probe and target MCU. All power and debug signaling is supplied by the connected QB-80FB-YQ-01T probe and IECUBE main unit - the QB-80FB-EA-04T itself introduces no latency, voltage shift, or protocol translation.

Can the QB-80FB-EA-04T be used with non-Renesas debug tools?

No. The QB-80FB-EA-04T is mechanically and electrically designed exclusively for Renesas' IECUBE ecosystem - specifically for use with QB-80FB-YQ-01T, QB-80FB-NQ-01T, or QB-80FB-HQ-01T probes and the QB-80FB-ZZZ main unit. Its 20-pin IDC interface, pin assignment, and physical keying are incompatible with generic JTAG/SWD debuggers such as Segger J-Link or ST-LINK.

Is the QB-80FB-EA-04T still in production, and what socket kit does it require?

Yes, the QB-80FB-EA-04T remains an active, orderable part per Renesas' current IECUBE optional product list. It requires the YQSOCKET080SDN socket and YQPACK080SD adapter kit (both manufactured by Tokyo Eletech Corporation) for full mechanical and electrical integration. These配套 items are explicitly listed as required in the official documentation and must be purchased separately.