Renesas QB-20SP-NQ-01T

Overview

QB-20SP-NQ-01T from Renesas Electronics is a 20-pin surface-mount target connector designed for use with the QB-RL78F14 in-circuit emulator to interface with RL78/F13 and RL78/F14 microcontrollers in 20SP package. It provides reliable signal routing for debug, programming, and real-time trace functions at operating voltages from 2.7 V to 5.5 V and supports system clock frequencies up to 20 MHz. It is used during embedded firmware development for industrial control and sensor node applications.

For engineers reviewing the QB-20SP-NQ-01T datasheet, QB-20SP-NQ-01T pinout, QB-20SP-NQ-01T application, or QB-20SP-NQ-01T equivalent, this page delivers verified mechanical interface specifications, mating compatibility with QB-20SP-EA-05T exchange adapter and QB-RL78F14 emulator, and precise mounting requirements for RL78/F13 20SP-package target systems.

Technical Context

The QB-20SP-NQ-01T is a passive, unpowered PCB-mounted connector that forms the physical interface between the QB-RL78F14 emulator and the target board. It mates exclusively with the QB-20SP-EA-05T exchange adapter and is specified only for RL78/F13 devices in 20-pin SSOP (20SP) package.

No active circuitry, voltage translation, or signal conditioning is integrated. Its design ensures low-capacitance, high-fidelity signal transmission for JTAG/On-Chip Debug (OCD) signals including RESET, CLK, TDI, TDO, TMS, TCK, and VDD/VSS - all aligned to Renesas' RL78 debug protocol timing requirements.

Key Specifications

Availability

QB-20SP-NQ-01T is available at Aetrix Electronics and suitable for embedded firmware development, industrial controller prototyping, and sensor node debug workflows requiring stable component supply and guaranteed Renesas ecosystem compatibility.

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

QB-20SP-NQ-01T belongs to Renesas' IECUBE in-circuit emulator accessory product line, engineered specifically to enable reliable, low-risk debug connectivity between Renesas emulators and RL78-family microcontroller-based target hardware.

FAQ

Is QB-20SP-NQ-01T compatible with RL78/F14 microcontrollers?

No. QB-20SP-NQ-01T is explicitly designated for RL78/F13 devices in the 20SP package only. RL78/F14 variants require different connectors - such as QB-30SP-NQ-01T for 30SP packages - as confirmed in Table 1-3 of the QB-RL78F14 User's Manual Rev.3.00. Using QB-20SP-NQ-01T with an F14 device will result in incorrect pin mapping and debug failure.

What adapter does QB-20SP-NQ-01T mate with?

QB-20SP-NQ-01T mates exclusively with the QB-20SP-EA-05T exchange adapter, as documented in Table 1-3 and Section 1.6 of the QB-RL78F14 User's Manual. This pairing ensures correct signal routing between the target board and QB-RL78F14 emulator. No other EA part number is mechanically or electrically compatible.

Does QB-20SP-NQ-01T include active circuitry or voltage level translation?

No. QB-20SP-NQ-01T is a passive, unpowered SMT connector with no integrated ICs, resistors, capacitors, or level-shifting components. It provides direct, low-impedance signal paths for debug signals - all voltage-level compatibility must be maintained by the target board and emulator system design per RL78/F13 specifications.

Can QB-20SP-NQ-01T be used without the QB-20SP-EA-05T adapter?

No. QB-20SP-NQ-01T is not designed for direct connection to the QB-RL78F14 main unit. It requires the QB-20SP-EA-05T exchange adapter to bridge mechanical and electrical interfaces - including pin pitch conversion and signal alignment - as defined in Renesas' official system configuration diagrams and Table 1-3.

What is the recommended soldering profile for QB-20SP-NQ-01T?

QB-20SP-NQ-01T follows standard lead-free (RoHS-compliant) reflow soldering guidelines per IPC-J-STD-020. Peak temperature must not exceed 260°C for ≤ 30 seconds. Thermal profiles should avoid thermal shock; preheat ramp rate ≤ 3°C/s, time above liquidus 60–150 s. Refer to Renesas' "Safety Precautions (IECUBE)" document included with QB-RL78F14 kits for handling and mounting instructions.