Renesas QB-64FP-YQ-01T

Overview

QB-64FP-YQ-01T from Renesas Electronics is a YQ-series exchange adapter designed for RL78 family microcontrollers in 64-pin LQFP (10×10 mm) packages, enabling connection between IECUBE emulation hardware and target boards via a standardized YQ connector interface, supporting debug and programming of R5F10Fxx, R5F10Gxx, and R5F10Pxx series MCUs in industrial control and automotive body electronics applications.

For engineers reviewing the QB-64FP-YQ-01T datasheet, QB-64FP-YQ-01T pinout, QB-64FP-YQ-01T application, or QB-64FP-YQ-01T equivalent, this adapter provides verified mechanical and signal mapping for RL78 64-pin LQFP devices, with documented compatibility across QB-RL78G13, QB-RL78G14, QB-RL78L12, and QB-RL78F14 main units - critical for JTAG/SWJ-based firmware development and production programming workflows.

Technical Context

The QB-64FP-YQ-01T implements a passive, zero-logic signal translation layer between the IECUBE's YQ connector and 64-pin LQFP target MCUs, preserving native SWD/JTAG timing integrity without buffering or level-shifting. It supports standard ARM Serial Wire Debug (SWD) and legacy JTAG protocols at up to 10 MHz clock rates.

It maps all essential debug signals - including TCK, TMS, TDI, TDO, nTRST, and SWO - plus VDD, VSS, and reset (nRESET), with dedicated ground planes and controlled trace lengths to maintain signal fidelity. No external power or configuration is required; operation is fully passive and bidirectional.

Key Specifications

Availability

QB-64FP-YQ-01T is available at Aetrix Electronics and suitable for embedded firmware development, production line programming, and automotive ECU validation requiring stable component supply, consistent mechanical fit, and guaranteed signal integrity for RL78-based designs.

Supply support for QB-64FP-YQ-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 management solutions for automotive, industrial, and IoT applications.

The QB-64FP-YQ-01T belongs to Renesas' IECUBE ecosystem - a modular, socket-based in-circuit emulator platform designed specifically for rapid, reliable debugging and flash programming of RL78 8-bit MCUs across diverse package types and pin counts.

FAQ

What is the QB-64FP-YQ-01T used for?

The QB-64FP-YQ-01T is a passive exchange adapter that bridges the YQ connector on Renesas IECUBE main units (e.g., QB-RL78G13-ZZZ) to 64-pin LQFP-packaged RL78 MCUs. It enables secure, low-skew SWD/JTAG communication for firmware debugging, flash programming, and real-time trace - without modifying target PCBs or adding active circuitry. The QB-64FP-YQ-01T ensures mechanical alignment and signal fidelity for production-grade development workflows.

Which RL78 microcontrollers are compatible with the QB-64FP-YQ-01T?

The QB-64FP-YQ-01T supports all RL78 family devices in 64-pin LQFP (10×10 mm) packages, including R5F10FLE, R5F10GFE, R5F10PLE, R5F10GCE, R5F10FME, and R5F10PJE variants. Compatibility is confirmed by Renesas' official IECUBE optional product list and applies specifically to devices supported by QB-RL78G13, QB-RL78G14, QB-RL78F14, QB-RL78L12, and QB-RL78F15 main units - not generic LQFP footprints.

Does the QB-64FP-YQ-01T require external power or configuration?

No. The QB-64FP-YQ-01T is a fully passive adapter with no active components, ICs, or firmware. It draws no power and requires no configuration - all signals (SWDIO, SWCLK, nRESET, VDD, VSS) are routed directly with impedance-controlled traces. Power is supplied either from the IECUBE unit or the target board, and voltage levels must match the target MCU's operating range (1.8–5.5 V). The QB-64FP-YQ-01T introduces no logic-level translation or timing delay.

How does the QB-64FP-YQ-01T differ from the QB-64FB-YQ-01T?

The QB-64FP-YQ-01T is designated for 64-pin LQFP (10×10 mm) devices with "FP" in the part number, while QB-64FB-YQ-01T targets 64-pin FBGA (4×4 mm) packages ("FB"). They are mechanically and electrically incompatible - different pin counts, pitch, and land patterns. The QB-64FP-YQ-01T routes signals to LQFP pads using a rigid PCB with surface-mount LQFP socket footprint; QB-64FB-YQ-01T uses a fine-pitch BGA interposer. Using the wrong adapter will prevent physical mating and cause connection failure.

Is the QB-64FP-YQ-01T still in production and supported?

Yes. Unlike discontinued items marked *1 in Renesas' documentation (e.g., QB-64FB-YS-01T), the QB-64FP-YQ-01T appears in current IECUBE optional product lists without discontinuation notation. It remains actively distributed by authorized partners including Tokyo Eletech Corporation (as noted for associated YQPACK064SA and YQSOCKET064SAN components) and is supported by Renesas' latest IECUBE firmware and CS+ development tools.