Renesas QB-44FP-YQ-01T

Overview

QB-44FP-YQ-01T from Renesas Electronics is a YQ-series connector designed for T-type socket emulation systems targeting RL78/L12 microcontrollers in 44-pin QFP packages. It serves as the interface between exchange adapter (QB-44FP-EA-02T) and target connector (QB-44FP-NQ-01T), supports 44-position pin mapping, operates at 1.6–5.5 V supply range, and enables reliable in-circuit debugging of embedded control applications.

For engineers reviewing the QB-44FP-YQ-01T datasheet, QB-44FP-YQ-01T pinout, QB-44FP-YQ-01T application, or QB-44FP-YQ-01T equivalent, this component is critical for establishing low-inductance, high-fidelity signal routing in RL78/L12-based emulator setups - especially where precise clock synchronization, trace data integrity, and debug probe compatibility are required.

Technical Context

The QB-44FP-YQ-01T is a passive mechanical interconnect used exclusively within Renesas' IECUBE in-circuit emulator ecosystem for RL78/L12 devices. It mates with QB-44FP-EA-02T (exchange adapter) on one side and QB-44FP-NQ-01T (target connector) on the other, forming part of a calibrated signal path that preserves timing fidelity for real-time trace and breakpoint functions.

Its design ensures impedance-matched signal transfer across all 44 pins, maintains GND/VDD isolation per Renesas' emulator layout guidelines, and complies with mechanical tolerances defined for T-type socket configurations. No active circuitry, voltage regulation, or logic functionality is present - it functions solely as a precision-machined, gold-plated contact bridge.

Key Specifications

Availability

QB-44FP-YQ-01T is available at Aetrix Electronics and suitable for RL78/L12-based motor control, industrial HMI, and automotive body electronics development requiring stable component supply, full emulator stack compatibility, and guaranteed mechanical interchangeability with Renesas' official IECUBE accessories.

Supply support for QB-44FP-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 manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.

QB-44FP-YQ-01T belongs to Renesas' IECUBE in-circuit emulator accessory product line, engineered specifically to enable high-fidelity, low-latency debugging of RL78-family MCUs in production-grade embedded development environments.

FAQ

What is the primary function of the QB-44FP-YQ-01T in an RL78/L12 emulator setup?

The QB-44FP-YQ-01T is a dedicated mechanical connector that bridges the exchange adapter (QB-44FP-EA-02T) and target connector (QB-44FP-NQ-01T) in Renesas' IECUBE emulator system. It ensures precise 44-pin alignment and low-resistance signal continuity for debug, trace, power, and clock signals - critical for reliable real-time emulation of the RL78/L12 microcontroller. The QB-44FP-YQ-01T itself contains no active components or circuitry.

Is QB-44FP-YQ-01T compatible with non-RL78/L12 targets or other emulator platforms?

No. QB-44FP-YQ-01T is mechanically and electrically specified only for use with RL78/L12 devices in 44FP packages and exclusively within Renesas' IECUBE emulator architecture. It is not interchangeable with S-type socket adapters, other YQ variants (e.g., QB-32FP-YQ-01T), or third-party emulators. Its pin pitch, height tolerance, and mating force profile are validated solely for the QB-44FP-EA-02T/QB-44FP-NQ-01T pairing.

Does QB-44FP-YQ-01T require any configuration, firmware, or driver installation?

No. QB-44FP-YQ-01T is a passive hardware interconnect with no embedded logic, memory, or programmable elements. It requires no drivers, firmware updates, or software configuration. Its role is purely mechanical and electrical - ensuring physical connectivity and signal integrity between emulator subsystems. All configuration occurs in the QB-RL78L12 unit and host debugger software, not in the QB-44FP-YQ-01T.

Can QB-44FP-YQ-01T be used without the QB-44FP-EA-02T exchange adapter?

No. QB-44FP-YQ-01T is designed to mate exclusively with QB-44FP-EA-02T on one side and QB-44FP-NQ-01T on the other. It lacks mounting features, PCB footprints, or standalone interface capability. Attempting to use QB-44FP-YQ-01T outside this defined three-part stack (EA–YQ–NQ) violates Renesas' mechanical and signal-integrity specifications and may compromise debug reliability or damage contacts.

What environmental or handling precautions apply to QB-44FP-YQ-01T?

Per Renesas' General Precautions, QB-44FP-YQ-01T must not be plugged/unplugged while powered, bent or pulled excessively, exposed to moisture, or subjected to electrostatic discharge. It should be handled only by its housing - never by pins - and stored within −15°C to +60°C (non-condensing). Mechanical stress on the connector body or misalignment during mating can permanently deform contacts and degrade QB-44FP-YQ-01T performance in the emulator chain.