Renesas QB-80FB-EA-01T

Overview

QB-80FB-EA-01T 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 of RL78/G13, RL78/G14, RL78/F12–F15, RL78/L12–L1C, and other compatible MCUs. The adapter supports EA (Emulation Adapter) interface mode and connects to the main IECUBE unit (e.g., QB-RL78G13-ZZZ) via standard emulation probe cabling.

For engineers reviewing the QB-80FB-EA-01T datasheet, QB-80FB-EA-01T pinout, QB-80FB-EA-01T application, or QB-80FB-EA-01T equivalent, this adapter is selected for RL78-based embedded development requiring reliable JTAG/SW-DP debug connectivity, mechanical alignment with 80-pin LQFP targets, and compatibility with Renesas' legacy IECUBE ecosystem.

Technical Context

The QB-80FB-EA-01T implements a passive mechanical and electrical interface between the IECUBE main unit and target RL78 MCU boards. It maps all required debug signals - including TCK, TMS, TDI, TDO, TRST, and RESET - while preserving voltage domain isolation and signal integrity per Renesas' IECUBE specification.

It is mechanically keyed to accept only 80-pin LQFP devices with 0.5 mm pitch and 12×12 mm body size, and electrically configured for EA-mode operation - distinct from YQ/NQ/HQ/YS variants that support different probe types or power delivery schemes.

Key Specifications

Availability

QB-80FB-EA-01T is available at Aetrix Electronics and suitable for RL78-based embedded development, industrial control prototyping, and automotive ECU validation requiring stable component supply and long-term tooling continuity.

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

QB-80FB-EA-01T belongs to Renesas' IECUBE ecosystem - a legacy but fully supported debug hardware platform engineered specifically for RL78-family MCU evaluation, firmware development, and production programming.

FAQ

What is the QB-80FB-EA-01T used for?

The QB-80FB-EA-01T is a socket adapter enabling connection between Renesas' IECUBE main unit and 80-pin LQFP-packaged RL78 microcontrollers. It provides mechanical alignment, electrical signal routing, and debug interface support (JTAG/SW-DP) for firmware development and in-circuit testing. QB-80FB-EA-01T does not contain active circuitry and requires a compatible main unit like QB-RL78G13-ZZZ to function.

Is QB-80FB-EA-01T compatible with all 80-pin RL78 MCUs?

QB-80FB-EA-01T supports RL78 MCUs in 80-pin LQFP packages across multiple subfamilies - including RL78/G13, G14, F12–F15, L12–L1C, and I1A/I1B - provided they conform to the same mechanical footprint and debug interface requirements. It is not compatible with non-LQFP packages (e.g., WQFN or FBGA) or MCUs requiring YQ/NQ/HQ/YS probe modes.

Does QB-80FB-EA-01T include a built-in debugger or programmer?

No. QB-80FB-EA-01T is a passive socket adapter only. It contains no silicon, memory, or firmware. Debug functionality is delivered by the IECUBE main unit (e.g., QB-RL78G13-ZZZ), and QB-80FB-EA-01T serves solely as a mechanical and electrical interface bridge. QB-80FB-EA-01T must be used with a full IECUBE system to enable programming or real-time debugging.

Can QB-80FB-EA-01T be used with modern Renesas E2 emulator hardware?

No. QB-80FB-EA-01T is designed exclusively for the legacy IECUBE platform and is not electrically or mechanically compatible with Renesas' current E2 or E2 Lite emulators. Those tools use different connectors, protocols, and adapter form factors. QB-80FB-EA-01T remains valid only within the discontinued-but-supported IECUBE ecosystem.

What are the key differences between QB-80FB-EA-01T and QB-80FB-YQ-01T?

QB-80FB-EA-01T operates in Emulation Adapter (EA) mode and requires the QB-RL78xxx-ZZZ main unit. QB-80FB-YQ-01T uses YQ Connector mode and interfaces with separate YQ-series emulation probes and adapters. They differ in pin mapping, signal buffering, power delivery path, and mechanical retention design - making them non-interchangeable. QB-80FB-EA-01T cannot substitute for QB-80FB-YQ-01T without changing the entire debug hardware stack.