Renesas QB-64GC-NQ-01T

Overview

QB-64GC-NQ-01T from Renesas Electronics is a socket adapter designed for RL78 family microcontrollers in 64-pin FBGA (4×4 mm) packages, enabling connection between IECUBE debug emulators and target boards via NQ-series emulation probe interface. It supports real-time debugging, flash programming, and trace functionality for RL78/G13, RL78/G14, RL78/L12, and RL78/L1C MCUs.

For engineers reviewing the QB-64GC-NQ-01T datasheet, QB-64GC-NQ-01T pinout, QB-64GC-NQ-01T application, or QB-64GC-NQ-01T equivalent, this adapter enables reliable JTAG/SWJ-based on-chip debugging of 64-pin FBGA-packaged RL78 MCUs without requiring custom probe wiring or soldering.

Technical Context

The QB-64GC-NQ-01T implements a passive signal-mapping interface between the 64-pin FBGA footprint of RL78 MCUs and the standardized 14-pin NQ-series emulation probe connector. It preserves all required debug signals - including TCK, TMS, TDI, TDO, TRST, RESET, VDD, VSS, and SWCLK/SWDIO - with impedance-controlled routing and no active logic or level translation.

It is mechanically compatible with Tokyo Eletech's NQPACK064SD-ND socket pack and designed for use with QB-64GB-NQ-01T (the matching NQ-series main unit), supporting full-speed debug clock operation up to 10 MHz and compliant with Renesas' IECUBE hardware specification Rev. 1.20.

Key Specifications

Availability

QB-64GC-NQ-01T is available at Aetrix Electronics and suitable for embedded development, industrial MCU validation, and production programming workflows requiring stable component supply, consistent debug interface compatibility, and long-term toolchain continuity.

Supply support for QB-64GC-NQ-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 specializing in microcontrollers, analog, power management, and automotive SoCs.

QB-64GC-NQ-01T belongs to the IECUBE ecosystem - a dedicated hardware platform for RL78 MCU development - designed to simplify debug setup, reduce board-level integration effort, and ensure repeatable, standards-compliant firmware validation across RL78 product lines.

FAQ

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

The QB-64GC-NQ-01T is a passive socket adapter that bridges 64-pin FBGA-packaged RL78 microcontrollers to Renesas' NQ-series IECUBE emulation probes. It enables JTAG/SWJ-based debugging and programming without modifying the target PCB. The QB-64GC-NQ-01T does not contain active circuitry and relies entirely on precise mechanical and electrical mapping per Renesas' IECUBE specification.

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

The QB-64GC-NQ-01T supports RL78/G13, RL78/G14, RL78/L12, and RL78/L1C microcontrollers in 64-pin FBGA (4×4 mm) packages. It is not compatible with LQFP, WQFN, or SSOP variants - only FBGA devices listed in Renesas' IECUBE compatibility notes for the NQ interface.

Is the QB-64GC-NQ-01T compatible with other IECUBE probe types like YQ or HQ?

No. The QB-64GC-NQ-01T is specifically engineered for the NQ-series 14-pin emulation interface. It is mechanically and electrically incompatible with YQ (20-pin), HQ (20-pin), or YS (20-pin) probe connectors. Using it with non-NQ probes risks misalignment, signal shorts, or physical damage.

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

No. The QB-64GC-NQ-01T is a fully passive adapter with no power input, jumpers, DIP switches, or firmware. It draws no current and requires zero configuration - signal integrity and connectivity depend solely on correct mating with both the target FBGA socket and the NQ probe cable.

Can the QB-64GC-NQ-01T be used with third-party debug tools?

Only if those tools physically and electrically conform to Renesas' NQ-series probe specification (14-pin, 2.54 mm pitch, defined pinout per IECUBE spec). Generic JTAG adapters lacking NQ mechanical alignment or signal mapping will not interface reliably with the QB-64GC-NQ-01T.