Renesas QB-128FB-EA-01T

Overview

QB-128FB-EA-01T from Renesas Electronics is an exchange adapter designed for the QB-RL78G13 in-circuit emulator, enabling physical and electrical interface conversion between the emulator's YQ connector and the 128-pin FBGA package of RL78/G13 target devices. It supports 1.6–5.5 V operation, maintains signal integrity for real-time debugging, and is used with QB-128FB-YQ-01T and QB-128FB-NQ-01T to form a complete T-type socket emulation chain.

For engineers reviewing the QB-128FB-EA-01T datasheet, QB-128FB-EA-01T pinout, QB-128FB-EA-01T application, or QB-128FB-EA-01T equivalent, this adapter enables reliable debug connection to RL78/G13-based embedded control systems - particularly where space-constrained 128FB packaging requires precise mechanical alignment and low-capacitance signal routing during firmware validation and timing analysis.

Technical Context

The QB-128FB-EA-01T is a passive mechanical and electrical interface component that maps QB-RL78G13 emulator signals to the 128-pin FBGA footprint of RL78/G13 microcontrollers. It contains no active circuitry, ICs, or programmable logic, and relies entirely on the QB-RL78G13's internal emulation engine and clock generation capabilities.

It functions exclusively within the T-type socket configuration, requiring QB-128FB-YQ-01T (YQ connector) and QB-128FB-NQ-01T (target connector) to complete the signal path from emulator to target PCB. Its design accommodates height-adjustable mounting via optional QB-128FB-YS-01T space adapters.

Key Specifications

Availability

QB-128FB-EA-01T is available at Aetrix Electronics and suitable for RL78/G13-based motor control, industrial HMI, and automotive body electronics development requiring stable component supply for debug infrastructure.

Supply support for QB-128FB-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, and IoT solutions for industrial, automotive, and consumer applications.

QB-128FB-EA-01T belongs to Renesas' IECUBE in-circuit emulator accessory product line, engineered specifically to extend QB-RL78G13 debugging capability to high-pin-count RL78/G13 FBGA variants in production-representative hardware environments.

FAQ

Is QB-128FB-EA-01T a standalone debugging tool?

No. QB-128FB-EA-01T is not a functional debugger - it is a passive exchange adapter that must be used with the QB-RL78G13 in-circuit emulator, QB-128FB-YQ-01T YQ connector, and QB-128FB-NQ-01T target connector. It provides no clock generation, signal conditioning, or emulation logic; its sole role is pin mapping and mechanical interface bridging for the RL78/G13 128FB package.

What RL78/G13 packages does QB-128FB-EA-01T support?

QB-128FB-EA-01T supports only the 128-pin FBGA package variant of the RL78/G13 microcontroller family (e.g., R5F100LEJSP). It is not compatible with LQFP, QFN, or other pin counts or footprints - per Table 1-3 in the QB-RL78G13 User's Manual, this part number is explicitly assigned to the "128FB" row under RL78/G13.

Does QB-128FB-EA-01T require firmware or driver installation?

No. QB-128FB-EA-01T contains no embedded firmware, memory, or programmable elements. It requires no drivers or software configuration. All control, clocking, and debug protocol handling is performed by the QB-RL78G13 main unit and associated CubeSuite+ IDE - QB-128FB-EA-01T operates transparently as a signal-passive interconnect.

Can QB-128FB-EA-01T be used with RL78/G12 targets?

No. QB-128FB-EA-01T is designated exclusively for RL78/G13 in the official Renesas adapter table (Table 1-3), and its mechanical and electrical layout is optimized for the G13's 128FB pinout and signal assignments. RL78/G12 devices use different pin mappings and are supported by separate exchange adapters such as QB-100FA-EA-02T or QB-100FB-EA-01T.

What accessories are required to use QB-128FB-EA-01T?

To deploy QB-128FB-EA-01T, you must also procure QB-128FB-YQ-01T (YQ connector), QB-128FB-NQ-01T (target connector), and the base QB-RL78G13 emulator unit. Optional accessories include QB-128FB-YS-01T (space adapter) for height adjustment and QB-144-EP-02S (emulation probe) for >100-pin RL78/G13 devices.