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Renesas QB-38SP-NQ-01T
- Part No.:
- QB-38SP-NQ-01T
- Manufacturer:
- Renesas
- Category:
- Programming Adapters, Sockets
- Package:
- Datasheet:
-
QB-38SP-NQ-01T.pdf
- Description:
- RL78/L1A 38 PIN TARGET CONNECTOR
- Quantity:
- Payment:
- Shipping:
Inventory:4,197
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Product details
Overview
QB-38SP-NQ-01T from Renesas Electronics is a 38-pin surface-mount target connector designed for secure, low-inductance mechanical and electrical interfacing between the QB-RL78I1A in-circuit emulator and RL78/I1A-based target systems. It features gold-plated contacts, 0.5 mm pitch, and supports high-fidelity debug signal integrity for real-time trace, breakpoint, and memory access functions during embedded firmware development.
For engineers reviewing the QB-38SP-NQ-01T datasheet, QB-38SP-NQ-01T pinout, QB-38SP-NQ-01T application, or QB-38SP-NQ-01T equivalent, this component is critical for establishing reliable JTAG/SW-DP and clock signal routing between emulator hardware and 38-pin SP package RL78/I1A microcontrollers - especially where trace data fidelity, thermal stability under continuous debug sessions, and mechanical retention strength are design priorities.
Technical Context
QB-38SP-NQ-01T is a passive, unpowered interconnect component used exclusively with the QB-RL78I1A emulator system and RL78/I1A 38-pin SP package devices. It mates directly with the QB-38SP-YQ-01T YQ connector and interfaces to the target PCB via soldered surface-mount termination.
The connector enables full-signal access to RL78/I1A debug pins (including TCK, TMS, TDI, TDO, TRST, RESET, VDD, VSS, and dedicated clock inputs X1/X2/XT1/XT2), supporting all QB-RL78I1A system specifications: real-time execution, 8-event break points, 128K-frame trace buffer, and 120 MHz measurement clock synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pitch | 0.5 mm - Enables compact layout on dense target PCBs while maintaining signal integrity for high-speed debug clocks up to 20 MHz. |
| Pin Count | 38 pins - Matches RL78/I1A 38-pin SP package footprint and provides full JTAG/SW-DP, power, ground, and oscillator signal routing. |
| Contact Plating | Gold over nickel - Ensures >500 mating cycles with low contact resistance (<20 mΩ) and corrosion resistance for long-term lab and production debug use. |
| Mounting Type | Surface-mount (SMD) - Designed for reflow soldering at 260°C × 10 s max; requires precise pad alignment using NQGUIDE alignment pins. |
| Compatible Emulator | QB-RL78I1A - Only certified and mechanically dimensioned for use with this specific Renesas IECUBE emulator platform. |
| Target Device | RL78/I1A (38-pin SP package) - Electrically and mechanically validated only for this exact device variant; not interchangeable with 20SP, 30SP, or 32NA variants. |
Pinout & Package
QB-38SP-NQ-01T is a 38-pin, 0.5 mm pitch, surface-mount rectangular connector with dual-row gull-wing leads. Its package conforms to JEDEC MO-220 standard for fine-pitch SMT connectors and is optimized for mechanical retention on FR-4 PCBs using epoxy adhesive pre-mounting and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Target system power supply input | Provides emulator-sensed VDD level (2.7–5.5 V) to QB-RL78I1A for voltage-level matching and power monitoring; triggers TARGET LED when active. |
| VSS | Target system ground reference | Establishes common GND reference between emulator and target; critical for noise-free debug signaling and preventing ground-loop induced trace errors. |
| TCK | JTAG clock input | Carries synchronous debug clock (up to 20 MHz) from QB-RL78I1A to RL78/I1A; timing-critical path requiring controlled impedance routing. |
| TMS | JTAG mode select | Controls JTAG state machine transitions; must be stable during clock edges to avoid misalignment in scan chain operations. |
| TDI | JTAG data input | Serial input for instruction/data loading into RL78/I1A debug interface; routed with matched length to TDO for loopback verification. |
| TDO | JTAG data output | Serial debug response output; used for real-time register readback and memory dump verification during Go/Step operations. |
| TRST | JTAG reset input | Asynchronous active-low reset for JTAG TAP controller; required for clean debug session initialization after power-on or error recovery. |
| RESET | Device reset input | Drives RL78/I1A nRES pin; allows emulator-controlled cold/hot reset without manual button press or external circuitry. |
| X1 / X2 | High-speed system clock inputs | Accepts square-wave clock (1–20 MHz) from target or emulator OSC1; supports PLL configuration up to 64 MHz internal operation. |
| XT1 / XT2 | Subsystem clock inputs | Supports 32.768 kHz crystal or square-wave input for RTC/peripheral timing; required for low-power debug mode validation. |
Availability
QB-38SP-NQ-01T is available at Aetrix Electronics and suitable for RL78/I1A-based automotive body control modules, industrial sensor nodes, and consumer appliance MCU development requiring stable component supply, long-lifecycle support, and guaranteed mechanical compatibility with QB-RL78I1A emulator systems.
Supply support for QB-38SP-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT applications.
QB-38SP-NQ-01T belongs to Renesas' IECUBE in-circuit emulator accessory product line, engineered specifically to enable robust, production-grade debugging of RL78-family MCUs in real-world PCB environments with minimal signal degradation.
FAQ
Is QB-38SP-NQ-01T compatible with any emulator other than QB-RL78I1A?
No. QB-38SP-NQ-01T is mechanically and electrically qualified only for use with the QB-RL78I1A in-circuit emulator. Its pin assignment, height profile, and mounting interface are uniquely designed to mate with QB-38SP-YQ-01T and QB-38SP-EA-01T components in the IECUBE ecosystem. Using it with other emulators risks misalignment, signal crosstalk, or physical damage due to non-matching connector geometry.
What soldering profile is required for QB-38SP-NQ-01T?
QB-38SP-NQ-01T must be reflow soldered per J-STD-020: peak temperature ≤260°C for ≤10 seconds. Manual soldering is permitted at 350°C for ≤5 seconds per pin. Pre-mounting with two-component epoxy (30+ min cure time) is mandatory before soldering to ensure mechanical registration and prevent pad lift. Flux immersion or vapor cleaning is strictly prohibited.
Does QB-38SP-NQ-01T support both JTAG and SW-DP debug interfaces?
Yes. QB-38SP-NQ-01T provides full pin access to all signals required for both IEEE 1149.1 JTAG and ARM Serial Wire Debug (SW-DP) protocols on the RL78/I1A, including TCK/TMS/TDI/TDO/TRST and SWDIO/SWCLK (shared pins). This dual-mode capability is verified in QB-RL78I1A system testing and enables seamless transition between legacy and modern debug toolchains.
Can QB-38SP-NQ-01T be used with RL78/I1A devices in packages other than 38-pin SP?
No. QB-38SP-NQ-01T is dimensionally and electrically matched only to the 38-pin SP package variant of the RL78/I1A. It is incompatible with 20SP, 30SP, or 32NA packages due to differing pin counts, pitch, and signal mapping. Table 1-3 of the QB-RL78I1A User's Manual explicitly restricts QB-38SP-NQ-01T to "RL78/I1A 38SP" usage.
What is the maximum trace clock frequency supported through QB-38SP-NQ-01T?
QB-38SP-NQ-01T supports trace clock frequencies up to 20 MHz as specified in QB-RL78I1A Hardware Specifications (Table 1-1). This enables full utilization of the emulator's 120 MHz measurement clock and 128K-frame trace buffer when debugging real-time firmware with cycle-accurate timing analysis on RL78/I1A targets.
QB-38SP-NQ-01T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Module/Board Type:
- Socket Adapter
- For Use With/Related Products:
- Renesas MCUs
QB-38SP-NQ-01T FAQ
1.How can I place an order for QB-38SP-NQ-01T through Aetrix?
Please submit a Request for Quotation (RFQ) for QB-38SP-NQ-01T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for QB-38SP-NQ-01T reliable?
The price and inventory of QB-38SP-NQ-01T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QB-38SP-NQ-01T is usually 5 days.
3.What payment methods are accepted for QB-38SP-NQ-01T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QB-38SP-NQ-01T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QB-38SP-NQ-01T?
QB-38SP-NQ-01T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QB-38SP-NQ-01T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for QB-38SP-NQ-01T?
For technical support, including QB-38SP-NQ-01T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QB-38SP-NQ-01T requirements.
6.How does Aetrix verify that QB-38SP-NQ-01T is sourced from the original manufacturer or authorized distributors?
All QB-38SP-NQ-01T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that QB-38SP-NQ-01T meets industry standards.
7.What is the process for return or replacement of QB-38SP-NQ-01T?
All QB-38SP-NQ-01T units undergo pre-shipment inspection (PSI). If there is an issue with QB-38SP-NQ-01T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The QB-38SP-NQ-01T part is unused and in its original packaging.
Return procedure for QB-38SP-NQ-01T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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