Renesas QB-144FB-NQ-01T

Overview

QB-144FB-NQ-01T from Renesas Electronics is a target connector designed for use with the QB-RL78F15 in-circuit emulator to interface with RL78/F15 microcontrollers in 144-pin FBGA packages. It provides mechanical and electrical connection between the QB-RL78F15 emulator and the target system, supports high-speed system clock up to 20 MHz, operates within 2.7–5.5 V supply range, and enables real-time debugging functions including trace, break, and memory manipulation.

For engineers reviewing the QB-144FB-NQ-01T datasheet, QB-144FB-NQ-01T pinout, QB-144FB-NQ-01T application, or QB-144FB-NQ-01T equivalent, this component is essential for establishing reliable physical connectivity in RL78/F15-based embedded development environments requiring precise signal integrity, low-latency debug access, and compatibility with T-type space adapters (e.g., QB-144FB-YS-01T) and YQ connectors (e.g., QB-144FB-YQ-01T).

Technical Context

The QB-144FB-NQ-01T is a passive, surface-mount connector used exclusively in the QB-RL78F15 emulation system for RL78/F15 devices in 144-pin FBGA packages. It mates with the QB-144FB-YQ-01T YQ connector and interfaces directly with the target board's footprint, supporting all QB-RL78F15 system-level debug capabilities including real-time RAM monitoring, 128K-frame trace buffer, and 8-point execution/access breakpoints.

This connector enables full-system clock synchronization between emulator and target - supporting high-speed system clock (1–20 MHz), internal high-speed oscillator (1–32 MHz), low-speed system clock (15 kHz), and subsystem clock (32.768 kHz) - while maintaining signal fidelity required for non-intrusive program execution and time-tagged trace data capture at 8 ns resolution.

Key Specifications

Availability

QB-144FB-NQ-01T is available at Aetrix Electronics and suitable for RL78/F15-based industrial control systems, automotive body electronics, smart metering platforms, and medical device prototyping requiring stable component supply, long-term toolchain continuity, and certified Renesas ecosystem compatibility.

Supply support for QB-144FB-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, and SoC solutions for automotive, industrial, and IoT applications.

The QB-144FB-NQ-01T belongs to Renesas' IECUBE™ in-circuit emulator accessory product line, engineered specifically to enable high-fidelity, low-overhead debugging of RL78-family MCUs in production-representative packaging configurations.

FAQ

What is the primary function of the QB-144FB-NQ-01T in the QB-RL78F15 emulation system?

The QB-144FB-NQ-01T serves as the target-side surface-mount connector that physically and electrically interfaces the QB-RL78F15 in-circuit emulator with an RL78/F15 microcontroller mounted on a user's target board in a 144-pin FBGA package. It enables full JTAG/E1 debug protocol communication, clock distribution, reset signaling, and trace data transfer - forming the critical hardware link required for real-time debugging, memory inspection, and non-intrusive program execution analysis using the QB-RL78F15. Without QB-144FB-NQ-01T, the QB-RL78F15 cannot establish a compliant connection to 144FB-package RL78/F15 targets.

Which adapter components must be used with QB-144FB-NQ-01T to complete the QB-RL78F15 connection chain?

To complete the functional connection chain from QB-RL78F15 to an RL78/F15 144FB target, QB-144FB-NQ-01T must be used with QB-144FB-YQ-01T (YQ connector), QB-144FB-YS-01T (space adapter), QB-144FB-EA-01T (exchange adapter), and optionally QB-144FB-HQ-01T (mount adapter). These components are specified in Table 1-3 of the QB-RL78F15 User's Manual (Rev.1.00) and collectively ensure mechanical alignment, pin conversion, height adjustment, and socket-to-target bridging. QB-144FB-NQ-01T is not compatible with S-type adapters or connectors intended for NA-package devices.

Does QB-144FB-NQ-01T support high-speed system clock emulation up to 20 MHz?

Yes, QB-144FB-NQ-01T supports high-speed system clock emulation up to 20 MHz as defined in the QB-RL78F15 Hardware Specifications (Table 1-1). Its design preserves signal integrity for clock frequencies within the RL78/F15's operational range (2.7–5.5 V supply), enabling accurate timing behavior during real-time execution, trace capture, and breakpoint triggering. The connector itself does not generate or condition the clock but provides a verified low-capacitance, impedance-controlled path for clock signals routed from the QB-RL78F15 through QB-144FB-YQ-01T and QB-144FB-YS-01T to the target device.

Can QB-144FB-NQ-01T be used with RL78/F15 devices in packages other than 144-pin FBGA?

No, QB-144FB-NQ-01T is mechanically and electrically specific to RL78/F15 microcontrollers in 144-pin FBGA packages. Table 1-3 of the QB-RL78F15 User's Manual explicitly lists QB-144FB-NQ-01T only under the "144FB" row and associates it exclusively with QB-144FB-EA-01T, QB-144FB-YS-01T, QB-144FB-YQ-01T, and QB-144FB-HQ-01T. It is incompatible with 48NA, 64FB, 80FB, or 100FB variants - each requiring its own dedicated NQ-series target connector (e.g., QB-48NA-TC-01S for 48NA, QB-64FB-NQ-01T for 64FB).

Is QB-144FB-NQ-01T RoHS-compliant and suitable for industrial applications?

Yes, QB-144FB-NQ-01T complies with the EU RoHS Directive, as confirmed by Renesas Electronics' environmental documentation referenced in Section 8 of the QB-RL78F15 User's Manual. It is classified under Renesas' "Standard" quality grade, making it suitable for industrial robots, test and measurement equipment, machine tools, and industrial control systems - but not for safety-critical transportation or medical life-support applications. Its operating temperature range (0–40°C) and storage range (−15–60°C) align with typical industrial ambient requirements, and it is designed for use with the QB-RL78F15's 2.7–5.5 V supply and USB 2.0 host interface.