Renesas QB-44FP-NQ-01T

Overview

QB-44FP-NQ-01T from Renesas Electronics is a target connector designed for use with the QB-RL78L12 in-circuit emulator to interface with RL78/L12 microcontrollers in 44-pin QFP packages. It provides mechanical and electrical mating between the YQ connector and the target PCB, supports 1.6–5.5 V operation, enables real-time debugging via trace and break functions, and is used in embedded development of industrial control and sensor interface systems.

For engineers reviewing the QB-44FP-NQ-01T datasheet, QB-44FP-NQ-01T pinout, QB-44FP-NQ-01T application, or QB-44FP-NQ-01T equivalent, this part is a mechanically specified, T-type socket-compatible target connector - not an IC or active component - and must be selected alongside QB-44FP-YQ-01T, QB-44FP-EA-02T, and QB-80-EP-01T to complete the RL78/L12 emulation chain.

Technical Context

QB-44FP-NQ-01T is a passive, surface-mount solderable connector with 44 positions, designed exclusively for the RL78/L12 44FP package. It mates with the QB-44FP-YQ-01T YQ connector and interfaces directly with the target PCB's debug footprint.

This connector forms the final physical link in the QB-RL78L12 emulation path: QB-RL78L12 → QB-44FP-EA-02T (exchange adapter) → QB-44FP-YQ-01T (YQ connector) → QB-44FP-NQ-01T (target connector) → RL78/L12 device on target board. It carries no active circuitry, clock generation, or signal conditioning.

Key Specifications

Availability

QB-44FP-NQ-01T is available at Aetrix Electronics and suitable for embedded development, microcontroller debug infrastructure, and RL78-based industrial control prototyping requiring stable component supply and guaranteed compatibility with Renesas QB-RL78L12 toolchain.

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

QB-44FP-NQ-01T belongs to the IECUBE™ in-circuit emulator accessory product line, engineered specifically to enable reliable, low-risk hardware-level debugging of RL78-family MCUs during firmware development and validation.

FAQ

Is QB-44FP-NQ-01T an active electronic component or IC?

No, QB-44FP-NQ-01T is a passive mechanical connector - not an integrated circuit, semiconductor device, or active component. It contains no silicon, transistors, or circuitry. Its sole function is to provide a standardized, soldered interface between the QB-44FP-YQ-01T YQ connector and the RL78/L12 44FP footprint on the target PCB. QB-44FP-NQ-01T does not process signals, generate clocks, or require power.

What is the required mating connector for QB-44FP-NQ-01T?

The mandatory mating connector for QB-44FP-NQ-01T is QB-44FP-YQ-01T, a YQ-series plug connector that attaches to the QB-44FP-EA-02T exchange adapter. This pairing is defined in Renesas Table 1-3 and confirmed in Section 2.4 of the QB-RL78L12 User's Manual. No other YQ or EA variant is compatible with QB-44FP-NQ-01T.

Can QB-44FP-NQ-01T be used with non-RL78/L12 targets?

No. QB-44FP-NQ-01T is dimensionally and electrically specified only for the RL78/L12 44-pin QFP (44FP) package. Its pin count, pitch, pad layout, and signal assignment are fixed to match that exact device. It is not interchangeable with other 44-pin QFP microcontrollers - even from Renesas - unless explicitly validated in Renesas' Adapters and Connectors table for that target.

Does QB-44FP-NQ-01T support high-speed trace or real-time execution features?

No. QB-44FP-NQ-01T itself provides no signal conditioning, impedance control, or timing enhancement. Trace bandwidth and real-time execution capability depend entirely on the QB-RL78L12 emulator unit, its internal memory (512 KB ROM, 61.75 KB RAM), and the integrity of the full signal path - including QB-44FP-EA-02T, QB-44FP-YQ-01T, and PCB routing. QB-44FP-NQ-01T is a passive conduit only.

Is QB-44FP-NQ-01T RoHS compliant and lead-free assembly ready?

Yes. QB-44FP-NQ-01T complies with EU RoHS Directive requirements, as confirmed by Renesas' environmental compliance documentation referenced in Section 8 of the QB-RL78L12 User's Manual. It is qualified for Pb-free reflow soldering per JEDEC J-STD-020 and supports standard industrial PCB assembly processes without exemption requests.