Renesas QB-20SP-EA-01T

Overview

QB-20SP-EA-01T from Renesas Electronics is an exchange adapter designed for the QB-RL78G13 in-circuit emulator, enabling physical and electrical interface conversion between the emulator's YQ connector and 20-pin SP (Small Outline Package) target devices. It supports RL78/G13 microcontrollers in 20SP packages, operates within 0–40°C ambient temperature, and maintains signal integrity for real-time debugging via USB-hosted trace and breakpoint functions.

For engineers reviewing the QB-20SP-EA-01T datasheet, QB-20SP-EA-01T pinout, QB-20SP-EA-01T application, or QB-20SP-EA-01T equivalent, this adapter enables reliable debug probe interfacing with 20-pin SP-package RL78/G13 targets-critical for firmware validation, timing analysis, and non-intrusive memory/register inspection during embedded development.

Technical Context

The QB-20SP-EA-01T serves exclusively as a passive mechanical and electrical translation layer between the QB-RL78G13 emulator's YQ connector and the QB-20SP-NQ-01T target connector mounted on RL78/G13-based PCBs. It provides no active circuitry, voltage regulation, or signal conditioning-only verified pin-to-pin mapping and impedance-controlled routing for JTAG/SW-DP debug signals and power/ground lines.

It is used only in T-type socket configurations, requires mating with QB-20SP-NQ-01T (target connector) and QB-20SP-YQ-01T (YQ connector), and is validated for operation at emulator clock frequencies up to 20 MHz when paired with RL78/G13 devices operating at 1.8–5.5 V supply.

Key Specifications

Availability

QB-20SP-EA-01T is available at Aetrix Electronics and suitable for RL78/G13-based motor control firmware validation, industrial sensor node debugging, and low-power embedded HMI development requiring stable component supply across production design cycles.

Supply support for QB-20SP-EA-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, and IoT solutions for industrial, automotive, and consumer applications.

QB-20SP-EA-01T belongs to Renesas' IECUBE in-circuit emulator accessory product line, engineered specifically to extend QB-RL78G13 compatibility to 20-pin SP-package RL78/G13 microcontrollers in production-grade debug environments.

FAQ

What is the primary function of the QB-20SP-EA-01T in the QB-RL78G13 debug system?

The QB-20SP-EA-01T is a passive exchange adapter that bridges the QB-RL78G13 emulator to 20-pin SP-package RL78/G13 target devices. It enables physical and electrical interface translation between the emulator's YQ connector and the target board's QB-20SP-NQ-01T connector-ensuring correct JTAG/SW-DP signal routing, power delivery, and ground continuity without active components or signal modification. QB-20SP-EA-01T does not process or condition signals; its role is strictly mechanical and pin-mapped interoperability.

Is QB-20SP-EA-01T compatible with any emulator other than QB-RL78G13?

No. QB-20SP-EA-01T is explicitly designed and validated only for use with the QB-RL78G13 in-circuit emulator. Its pinout, mechanical dimensions, and electrical interface are matched to the QB-RL78G13's YQ connector and associated T-type socket architecture. It is not compatible with QB-RL78G12 systems, older IECUBE models, or third-party emulators-even if they support RL78/G13-due to proprietary connector geometry and signal assignment.

Does QB-20SP-EA-01T require external power or configuration?

No. QB-20SP-EA-01T is a fully passive adapter with no ICs, resistors, or active components. It draws no power and requires no firmware, jumpers, or DIP switches. Power and debug signals pass through unaltered from the QB-RL78G13 emulator to the target device via its fixed pin mapping. Configuration is handled entirely by the QB-RL78G13 host software and debugger settings-not by QB-20SP-EA-01T.

Which target connector must be used with QB-20SP-EA-01T?

QB-20SP-EA-01T must be used with QB-20SP-NQ-01T-the designated target connector soldered onto the RL78/G13 20SP-based PCB. This pairing ensures correct mechanical alignment, contact pressure, and pin correspondence. Using any other NQ-series connector (e.g., QB-24NA-NQ-01T) or generic 20-pin header will result in misalignment, intermittent connection, or permanent damage to the QB-20SP-EA-01T or target board.

Can QB-20SP-EA-01T be used with S-type socket configurations?

No. QB-20SP-EA-01T is designated for T-type socket use only, as confirmed by its part number suffix "-01T" and documentation in Table 1-3 of the QB-RL78G13 User's Manual. S-type variants (e.g., QB-24NA-EA-01S) have different mechanical keying, pin layout, and mating interface geometry. Attempting to force QB-20SP-EA-01T into an S-type system will prevent proper engagement and risk connector damage.