Renesas QB-64FB-EA-05T

Overview

QB-64FB-EA-05T from Renesas Electronics is a socket adapter designed for RL78/L13 and RL78/L1C microcontrollers in 64-pin LQFP (10×10 mm) and 80-pin LQFP (12×12 mm) packages, enabling connection between IECUBE emulation hardware and target boards. It supports debug and programming via standard JTAG/SW interface, features gold-plated contact pins for reliable signal integrity, and is rated for ≥50,000 mating cycles.

For engineers reviewing the QB-64FB-EA-05T datasheet, QB-64FB-EA-05T pinout, QB-64FB-EA-05T application, or QB-64FB-EA-05T equivalent, this adapter enables rapid transition from development to production debugging of RL78-based motor control, industrial HMI, and low-power sensor node designs without custom probe fixtures.

Technical Context

This adapter implements a passive, impedance-matched signal path between the IECUBE main unit's 14-pin IDC header and the target MCU's LQFP footprint. It maintains full JTAG/SW clock, reset, and data line routing with no active logic or level translation.

Designed exclusively for Renesas RL78 family MCUs, it maps pin-for-pin between QB-RL78L1C-ZZZ and QB-RL78L13-ZZZ main units and corresponding 64-pin/80-pin LQFP devices, including support for VDD, VSS, RESET, TCK, TMS, TDI, TDO, and SWDIO/SWCLK signals.

Key Specifications

Availability

QB-64FB-EA-05T is available at Aetrix Electronics and suitable for industrial motor control, embedded HMI, low-power sensor node, and automotive body electronics applications requiring stable component supply and long-lifecycle tooling support.

Supply support for QB-64FB-EA-05T 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 industrial, automotive, and IoT markets.

QB-64FB-EA-05T belongs to the IECUBE ecosystem - a dedicated in-circuit emulator platform designed for rapid, reliable debug and flash programming of Renesas RL78 microcontrollers in production-grade environments.

FAQ

What is the primary function of the QB-64FB-EA-05T adapter?

The QB-64FB-EA-05T is a passive socket adapter that bridges the IECUBE main emulator unit to RL78/L13 and RL78/L1C microcontrollers in 64-pin and 80-pin LQFP packages. It provides direct, unbuffered JTAG/SWD signal routing - no firmware, configuration, or power regulation - ensuring deterministic timing and full debug visibility for the QB-64FB-EA-05T during firmware development and validation.

Which Renesas MCUs are compatible with QB-64FB-EA-05T?

QB-64FB-EA-05T is validated exclusively for RL78/L13 and RL78/L1C series MCUs in 64-pin LQFP (10×10 mm) and 80-pin LQFP (12×12 mm) packages. It is not compatible with RL78/G1x, F1x, or I1x families. Confirmed support includes devices referenced under QB-RL78L1C-ZZZ and QB-RL78L13-ZZZ main units per Renesas' official IECUBE documentation.

Does QB-64FB-EA-05T require external power or configuration?

No. QB-64FB-EA-05T is a fully passive adapter with no onboard ICs, regulators, or configuration memory. It draws no power and requires zero setup - all signaling is direct-wired from the IECUBE main unit to the target MCU. Power for the target device must be supplied separately by the user's board or an external QB-COMMON-PW-xx adapter.

Can QB-64FB-EA-05T be used with other emulators besides IECUBE?

No. QB-64FB-EA-05T is mechanically and electrically designed only for use with Renesas IECUBE main units (e.g., QB-RL78L1C-ZZZ). Its 14-pin IDC interface, pin mapping, and physical footprint are incompatible with third-party debug probes, Segger J-Link, or ST-LINK hardware.

Is QB-64FB-EA-05T still in active production?

Yes. Unlike discontinued variants marked *1 in Renesas' IECUBE documentation (e.g., QB-48FB-EA-02T), QB-64FB-EA-05T appears in current RL78/L1C and RL78/L13 support tables without discontinuation notation and remains orderable through authorized distributors and Aetrix Electronics.