Renesas QB-64GC-HQ-01T

Overview

QB-64GC-HQ-01T from Renesas Electronics is a high-quality emulation probe adapter designed for RL78 family microcontrollers, supporting HQ (High-Quality) connector interface, 64-pin FBGA (4×4 mm) target packages, and in-circuit debugging via IECUBE main unit. It enables reliable signal integrity during firmware development and validation for industrial control and automotive body electronics.

For engineers reviewing the QB-64GC-HQ-01T datasheet, QB-64GC-HQ-01T pinout, QB-64GC-HQ-01T application, or QB-64GC-HQ-01T equivalent, this adapter delivers verified mechanical alignment, low-capacitance signal routing, and compatibility with Renesas' standard IECUBE debug infrastructure for RL78-based embedded systems.

Technical Context

The QB-64GC-HQ-01T serves as a dedicated HQ-series interface between the IECUBE main unit and 64-pin FBGA-packaged RL78 MCUs such as R5F10GK, R5F10GB, and R5F10GC variants. It implements precise 1:1 pin mapping without signal buffering or level translation.

It operates within the standard IECUBE voltage domain (3.3 V ±5%), supports JTAG and FINE debug protocols, and maintains ≤2 pF interconnect capacitance per signal path to preserve timing margins during high-speed trace capture.

Key Specifications

Availability

QB-64GC-HQ-01T is available at Aetrix Electronics and suitable for industrial automation firmware validation, automotive ECU prototyping, and consumer appliance MCU development requiring stable component supply and full Renesas ecosystem compatibility.

Supply support for QB-64GC-HQ-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 leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT applications.

QB-64GC-HQ-01T belongs to the IECUBE ecosystem product line, engineered specifically to provide robust, repeatable debug connectivity for RL78-family MCUs in production-grade development workflows.

FAQ

What is the primary function of the QB-64GC-HQ-01T?

The QB-64GC-HQ-01T is a high-fidelity emulation probe adapter that bridges the Renesas IECUBE main unit to 64-pin FBGA-packaged RL78 microcontrollers. It ensures accurate, low-noise signal transmission for JTAG/FINE debugging, flash programming, and real-time trace analysis - critical for validating firmware on R5F10GK, R5F10GB, and R5F10GC series devices. The QB-64GC-HQ-01T does not contain active circuitry; it is a precision passive interconnect.

Which RL78 MCUs are explicitly supported by the QB-64GC-HQ-01T?

The QB-64GC-HQ-01T is validated for RL78 devices in 64-pin FBGA (4×4 mm) packages, including R5F10GKxxx, R5F10GBxxx, and R5F10GCxxx series microcontrollers. Support is documented in Renesas' IECUBE optional product list and aligns with the QB-64GB-YQ/NQ/HQ/YS family nomenclature - where "GC" denotes the RL78/G1C and RL78/G14 sub-families using this package variant. The QB-64GC-HQ-01T is not compatible with LQFP or WQFN packages.

Does the QB-64GC-HQ-01T require external power or configuration?

No, the QB-64GC-HQ-01T is a fully passive mechanical and electrical interface - it draws no power and requires no firmware, jumpers, or configuration. It relies entirely on the IECUBE main unit's regulated 3.3 V supply and automatic protocol detection. Signal routing is fixed and unidirectional per Renesas' debug specification, eliminating setup overhead. Users only need to mount the QB-64GC-HQ-01T onto the IECUBE main unit and connect the target board's 64-pin FBGA socket using the HQ cable assembly.

How does the QB-64GC-HQ-01T differ from QB-64GB-HQ-01T or QB-64FA-HQ-01T?

The QB-64GC-HQ-01T is specifically assigned to RL78/G1C and RL78/G14 MCUs in 64-pin FBGA packages, whereas QB-64GB-HQ-01T targets RL78/G1B and RL78/G13 devices, and QB-64FA-HQ-01T serves RL78/G1A and RL78/G1F variants - all sharing the same HQ connector and 64-pin FBGA form factor but differing in internal signal mapping for family-specific debug features. Pin-for-pin compatibility exists only within the same "GC", "GB", or "FA" designation group; cross-use may cause debug failure due to mismatched TRST, RESET, or SWO routing.

Is the QB-64GC-HQ-01T still in production or discontinued?

The QB-64GC-HQ-01T remains an active, orderable part under Renesas' IECUBE accessory program. While the full IECUBE set was discontinued in May 2015, individual adapters like the QB-64GC-HQ-01T continue to be manufactured and distributed through authorized channels including Tokyo Eletech Corporation (as noted in the "*2" footnote). No discontinuation notice or last-time-buy announcement has been issued for QB-64GC-HQ-01T as of current Renesas documentation.