Renesas QB-64F1-NQ-01T

Overview

QB-64F1-NQ-01T from Renesas Electronics is a target connector designed for in-circuit emulation of the 78K0R/KE3-L (USB) microcontroller family, specifically supporting the μPD78F1025 and 78F1026 devices in 64-pin QFP packages. It provides mechanical and electrical interface compatibility between the QB-78F1026 emulator and the target system, rated for 1.8–5.5 V operation and operating temperatures from 0 to 40°C.

For engineers reviewing the QB-64F1-NQ-01T datasheet, QB-64F1-NQ-01T pinout, QB-64F1-NQ-01T application, or QB-64F1-NQ-01T equivalent, this component is critical for establishing reliable debug connectivity during embedded firmware development - especially when validating USB-based 78K0R/KE3-L system behavior under real-time execution and trace capture conditions.

Technical Context

The QB-64F1-NQ-01T is a passive, surface-mount PCB-mounted connector used exclusively with the QB-78F1026 in-circuit emulator. It mates with the YQ connector (QB-64F1-YQ-01T) and interfaces directly to the 64-pin 78K0R/KE3-L (USB) target device footprint. No active circuitry, voltage regulation, or signal conditioning is integrated.

It supports full-signal access to all 64 pins of the target MCU, including USB D+/D−, reset, clock inputs, power rails (VDD, VSS), and debug-specific signals such as EMUCLK, EMUDATA, and EMUEN. Pin assignment follows the QB-78F1026 system architecture defined in Renesas' IECUBE platform documentation.

Key Specifications

Availability

QB-64F1-NQ-01T is available at Aetrix Electronics and suitable for embedded firmware debugging, real-time trace analysis, and USB peripheral validation requiring stable component supply across development, pilot production, and engineering verification phases.

Supply support for QB-64F1-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 headquartered in Japan, specializing in microcontrollers, analog & power devices, and advanced embedded solutions for automotive, industrial, and IoT applications.

QB-64F1-NQ-01T belongs to Renesas' IECUBE in-circuit emulator accessory product line, engineered to enable high-fidelity, low-overhead debugging of 78K0R-series MCUs - particularly those with integrated USB functionality - without modifying target hardware layout.

FAQ

What is the primary function of the QB-64F1-NQ-01T in the QB-78F1026 emulator system?

The QB-64F1-NQ-01T serves as the target-side PCB-mounted connector that physically and electrically interfaces the QB-78F1026 in-circuit emulator with the 64-pin 78K0R/KE3-L (USB) microcontroller. It enables full-pin-access debugging, including USB signal routing, clock injection, and real-time trace data capture. The QB-64F1-NQ-01T must be soldered onto the target board during prototype design to support non-intrusive firmware validation using the QB-78F1026.

Which specific Renesas microcontrollers are supported by QB-64F1-NQ-01T?

QB-64F1-NQ-01T is explicitly designated for use with the μPD78F1025 and 78F1026 microcontrollers in the 78K0R/KE3-L (USB) family, packaged in 64-pin QFP. It is not compatible with other 78K0R variants (e.g., KC3-L) or non-USB derivatives. The part number mapping is confirmed in Table 1-3 of the QB-78F1026 User's Manual Rev.1.00, which lists QB-64F1-NQ-01T under the "64F1" target device row.

Does QB-64F1-NQ-01T include any active circuitry or signal conditioning?

No, QB-64F1-NQ-01T is a passive, unpowered mechanical and electrical interface component. It contains no ICs, resistors, capacitors, or level-shifting circuitry. Its sole purpose is to provide a reliable, low-inductance connection path between the QB-78F1026 emulator probe and the target MCU's 64-pin footprint. Signal integrity relies entirely on proper PCB layout, controlled impedance routing, and correct mating with the QB-64F1-YQ-01T YQ connector.

Is QB-64F1-NQ-01T supplied with the base QB-78F1026 unit?

No, QB-64F1-NQ-01T is not included with the standard QB-78F1026-ZZZ configuration. It is only provided as part of the QB-78F1026-T64F1 bundle, which also includes the QB-80-EP-01T emulation probe and QB-64F1-EA-07T exchange adapter. Customers integrating the QB-78F1026 into 64F1-based designs must procure QB-64F1-NQ-01T separately if not ordering the full T64F1 kit.

What mounting and handling precautions apply to QB-64F1-NQ-01T?

QB-64F1-NQ-01T must be mounted using standard SMT reflow processes per J-STD-020 guidelines. Renesas specifies zero tolerance for mechanical stress during connector mating - avoid bending pins or applying lateral force when installing the YQ connector. Per General Precautions in the QB-78F1026 manual, never plug/unplug while powered, and ensure GND potential matching between emulator and target system before connection to prevent latch-up or ESD damage to the QB-64F1-NQ-01T or connected 78F1026 device.