Renesas QB-20SP-EA-05T

Overview

QB-20SP-EA-05T from Renesas Electronics is an exchange adapter designed for the QB-RL78F14 in-circuit emulator, enabling physical and electrical interface conversion between the emulator's TCN1/TCN2/TCN3 probe connectors and 20-pin SSOP (20SP) target devices-specifically RL78/F13 microcontrollers. It supports 2.7–5.5 V operation, operates within 0–40°C, and is used with QB-80-EP-01T emulation probe and QB-20SP-NQ-01T target connector.

For engineers reviewing the QB-20SP-EA-05T datasheet, QB-20SP-EA-05T pinout, QB-20SP-EA-05T application, or QB-20SP-EA-05T equivalent, this adapter enables reliable debug connection to RL78/F13 20SP-packaged MCUs during embedded firmware development, hardware bring-up, and real-time trace analysis using the QB-RL78F14 platform.

Technical Context

The QB-20SP-EA-05T serves exclusively as a passive mechanical and signal-routing interface-not an active circuit or IC. It maps QB-RL78F14's standard 14-pin TCN header (used for probe attachment) to the 20-pin footprint of RL78/F13 20SP packages, preserving signal integrity for debug signals including RESET, CLK, VDD, VSS, and SWD/JTAG lines. No voltage translation, buffering, or logic is implemented.

It is mechanically compatible only with T-type configurations (denoted by "T" suffix), requires mating with QB-20SP-NQ-01T target connector and QB-80-EP-01T emulation probe, and is validated solely for use with RL78/F13 devices-not F14 or other families-per Table 1-3 of the QB-RL78F14 User's Manual Rev.3.00.

Key Specifications

Availability

QB-20SP-EA-05T is available at Aetrix Electronics and suitable for RL78/F13-based embedded control systems, automotive body electronics prototyping, industrial sensor node development, and consumer MCU debug workflows requiring stable component supply and full traceability.

Supply support for QB-20SP-EA-05T 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, power, and connectivity solutions for automotive, industrial, and IoT applications.

The QB-20SP-EA-05T belongs to Renesas' IECUBE™ in-circuit emulator accessory product line, engineered specifically to extend debug connectivity to RL78/F13 20SP-package microcontrollers in lab and engineering validation environments.

FAQ

Is QB-20SP-EA-05T compatible with RL78/F14 microcontrollers?

No. The QB-20SP-EA-05T is explicitly designated for RL78/F13 devices in 20SP packages, as confirmed in Table 1-3 of the QB-RL78F14 User's Manual Rev.3.00. RL78/F14 devices require different exchange adapters such as QB-30SP-EA-04T or QB-48FB-EA-05T depending on package type. Using QB-20SP-EA-05T with an F14 device will result in incorrect pin mapping and failed debug initialization.

What connectors must be used with QB-20SP-EA-05T?

QB-20SP-EA-05T requires two mandatory companion parts: QB-20SP-NQ-01T (target connector soldered to the RL78/F13 PCB) and QB-80-EP-01T (emulation probe). It mounts directly to the QB-RL78F14's TCN1/TCN2/TCN3 headers and does not support YQ or space adapters-unlike larger-package adapters. No AC adapter or USB cable is part of its interface chain.

Does QB-20SP-EA-05T provide voltage level translation or signal conditioning?

No. QB-20SP-EA-05T is a passive pin-mapping adapter with zero active components. It provides direct 1:1 signal routing between the QB-RL78F14 emulator and the RL78/F13 20SP target-no level shifting, buffering, isolation, or timing compensation. Signal integrity relies entirely on proper layout, cable length control, and adherence to QB-RL78F14's 2.7–5.5 V operating range.

Can QB-20SP-EA-05T be used without the QB-RL78F14 emulator?

No. QB-20SP-EA-05T has no standalone functionality. It is a mechanical and electrical interface accessory that only operates as part of the QB-RL78F14 in-circuit emulation system. It lacks power input, host interface, or debug logic-and cannot connect to PCs, JTAG debuggers from other vendors, or programming tools outside the Renesas IECUBE ecosystem.

Is QB-20SP-EA-05T RoHS compliant and lead-free?

Yes. As a Renesas Electronics product shipped after 2013 and covered under the QB-RL78F14 User's Manual Rev.3.00, QB-20SP-EA-05T complies with the EU RoHS Directive and contains no restricted substances above threshold limits. Compliance documentation-including the Table of Toxic and Hazardous Substances-is included in the QB-RL78F14 package per Section 1.6 and Note 8 of the manual.