Renesas QB-44FP-HQ-01T

Overview

QB-44FP-HQ-01T from Renesas Electronics is a mount adapter designed for RL78/L12 microcontrollers in 44-pin QFP (44FP) packages, enabling secure mechanical and electrical connection between the QB-RL78L12 in-circuit emulator and target systems during debug sessions. It supports 1.6–5.5 V operation, accommodates target system clock frequencies up to 24 MHz, and is rated for 0–40°C operating temperature.

For engineers reviewing the QB-44FP-HQ-01T datasheet, QB-44FP-HQ-01T pin compatibility, QB-44FP-HQ-01T mechanical fit, or QB-44FP-HQ-01T emulator interface requirements, this component ensures reliable physical mounting of the RL78/L12 device onto the QB-RL78L12 evaluation platform while preserving signal integrity and thermal stability during real-time debugging.

Technical Context

The QB-44FP-HQ-01T is a passive mechanical interface component used exclusively with the QB-RL78L12 in-circuit emulator system. It mates directly with the QB-44FP-NQ-01T target connector and QB-44FP-YQ-01T YQ connector to establish a full emulation path for RL78/L12 devices in 44FP packages.

No active circuitry, voltage regulation, or signal conditioning is integrated. Its design conforms to Renesas' T-type socket architecture, requiring precise alignment with QB-44FP-EA-02T exchange adapter and QB-44FP-YS-01T space adapter for height-adjusted mounting on target boards.

Key Specifications

Availability

QB-44FP-HQ-01T is available at Aetrix Electronics and suitable for embedded firmware development, production line debug validation, and RL78/L12-based industrial controller qualification requiring stable component supply and traceable sourcing.

Supply support for QB-44FP-HQ-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 solutions for automotive, industrial, and IoT applications.

QB-44FP-HQ-01T belongs to Renesas' IECUBE™ in-circuit emulator accessory product line, engineered specifically to enable robust, repeatable physical interfacing of RL78-family MCUs during hardware-aware software debugging.

FAQ

What is the primary function of the QB-44FP-HQ-01T?

The QB-44FP-HQ-01T is a mount adapter that mechanically secures RL78/L12 microcontrollers in 44-pin QFP packages onto the QB-RL78L12 in-circuit emulator platform. It provides precise alignment and stable electrical contact through mating with QB-44FP-NQ-01T and QB-44FP-YQ-01T, enabling reliable real-time debugging without soldering or permanent modification of the target device. The QB-44FP-HQ-01T itself contains no active circuitry.

Is QB-44FP-HQ-01T compatible with other RL78 emulator models or packages?

No - QB-44FP-HQ-01T is strictly designated for use with the QB-RL78L12 emulator and RL78/L12 devices in 44FP packages only. Table 1-3 of the QB-RL78L12 User's Manual confirms its exclusivity to this combination; it is not compatible with QB-RL78L13, QB-RX, or other RL78 variants, nor with 32FP, 48FB, or 64FA packages. Using it outside this scope risks misalignment and contact failure.

Does QB-44FP-HQ-01T require power or configuration?

No - QB-44FP-HQ-01T is a fully passive mechanical adapter with no electrical components, power pins, or configuration interfaces. It draws no current and requires no firmware, jumpers, or settings. All power, clock, and debug signals pass through its contact terminals from the QB-RL78L12 unit to the RL78/L12 device. Its functionality depends entirely on correct mechanical assembly with QB-44FP-YQ-01T and QB-44FP-NQ-01T.

What accessories must be used alongside QB-44FP-HQ-01T?

QB-44FP-HQ-01T must be used with QB-44FP-NQ-01T (target connector), QB-44FP-YQ-01T (YQ connector), and QB-44FP-EA-02T (exchange adapter) to complete the physical debug interface chain. Optional QB-44FP-YS-01T space adapter may be added for height adjustment. None of these parts are electrically interchangeable with adapters for other RL78 packages - each is uniquely keyed and dimensioned per Table 1-3.

Can QB-44FP-HQ-01T be used for production programming or only debugging?

QB-44FP-HQ-01T is intended solely for in-circuit debugging via the QB-RL78L12 emulator and is not qualified or supported for production programming, burn-in, or functional test. Renesas explicitly positions it as part of the IECUBE development ecosystem - not a production-line tool. For high-volume programming, Renesas recommends dedicated flash programmers like PG-FP5 or E2 studio-based mass production tools, not QB-44FP-HQ-01T.