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Renesas QS32XVH384Q1G8
- Part No.:
- QS32XVH384Q1G8
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 48-FSOP (0.154", 3.90mm Width)
- Datasheet:
-
QS32XVH384Q1G8.pdf
- Description:
- IC BUS SWITCH 2 X 10:10 48QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,716
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Product details
Overview
QS32XVH384Q1G8 from Renesas Electronics (formerly IDT) is a 20-bit, high-bandwidth bus switch with N-channel FET architecture, 4Ω typical ON resistance, rail-to-rail 0–5V analog/digital signal switching, and independent 4-channel LVTTL-compatible enable control. It operates from 2.3V to 3.6V VCC and supports hot-swapping in Ethernet LAN switches.
For engineers reviewing the QS32XVH384Q1G8 datasheet, QS32XVH384Q1G8 pinout, QS32XVH384Q1G8 application, or QS32XVH384Q1G8 equivalent, key selection criteria include 500MHz bandwidth, 5V-tolerant I/Os, <250ps propagation delay, isolation under power-off, and QVSOP-48 industrial-grade packaging.
Technical Context
The QS32XVH384Q1G8 implements four independent 5-bit banks (A0–A4/B0–B4, A5–A9/B5–B9, A10–A14/B10–B14, A15–A19/B15–B19), each controlled by dedicated OE pins (1OE–4OE). Its N-channel FET design eliminates parasitic diodes to VCC, enabling true 5V tolerance in both ON and OFF states and zero DC path to VCC or GND.
It delivers bidirectional, near-zero-delay signal routing with flat RON over voltage and temperature, 4pF typical OFF-state I/O capacitance, and high OFF-impedance (>10⁹ Ω), making it suitable for high-fidelity analog switching and high-speed digital bus isolation in live systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - Supports dual 2.5V/3.3V system interfacing without level shifters |
| RON (Typ.) | 4Ω at VCC = 3V - Enables <250ps propagation delay with 50pF load |
| Bandwidth | Up to 500MHz - Sustains integrity of Fast Ethernet (100BASE-TX) signals |
| I/O Voltage Tolerance | 0V to 5.5V - Allows safe 5V signal pass-through even when VCC = 2.5V or powered off |
| Propagation Delay (tPLH/tPHL) | ≤0.2ns - Adds negligible timing overhead in high-speed data paths |
| Operating Temp | –40°C to +85°C - Qualified for industrial embedded and telecom infrastructure |
| Package | 48-pin QVSOP (S1) - 7.6mm × 12.6mm footprint with gull-wing leads for automated assembly |
Pinout & Package
QS32XVH384Q1G8 is housed in a 48-pin QVSOP (S1) package with gull-wing leads, optimized for thermal performance and board-level reliability in high-density layouts. Pin numbering follows standard top-view orientation with VCC on pins 12/36 and GND on pins 12/24.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Switch Input/Output Bank A | Bidirectional data terminals; electrically identical to B-side, enabling flexible bus mirroring |
| B0–B19 | Switch Input/Output Bank B | Paired with A-side per 5-bit bank; no internal directionality-signal flow determined by OE state |
| 1OE–4OE | Independent Enable Inputs | LVTTL-compatible active-low controls; each enables one 5-bit bank (e.g., 1OE → A0–A4/B0–B4) |
| VCC (Pins 12, 36) | Power Supply | 2.3–3.6V logic supply; powers internal control logic only-not switched signal path |
| GND (Pins 12, 24) | Ground Reference | Dual ground pins reduce impedance and improve noise immunity in high-frequency operation |
Key Features
| Feature | Design Value |
|---|---|
| No parasitic diode to VCC | Enables true 5V-tolerant operation and complete isolation during power-off-critical for hot-swap safety |
| Rail-to-rail analog switching | Supports 0–5V continuous input range without clipping or distortion-valid for low-distortion analog multiplexing |
| Flat RON vs. VIN | Minimizes harmonic distortion and amplitude variation across signal swing-essential for signal integrity |
| Undershoot clamp diodes | Protects all switch and control inputs against –3V transient undershoot-enhances ESD robustness |
| Low I/O capacitance (4pF typ.) | Reduces loading on driving sources and preserves edge rates in >100MHz digital paths |
Applications
| Hot-Swappable Module Interface | Fast Ethernet LAN Switching |
|---|---|
|
Use Scenario: Insertion/removal of pluggable line cards in carrier-grade switches without system reset. IC Role / Device Role / Timing Role: Bidirectional bus isolation device enabling zero-downtime card replacement. Use Value: Prevents back-driving and latch-up between live backplane and unpowered module via 5V-tolerant, power-off-isolated switching. |
Use Scenario: Signal routing between PHY and MAC layers in 10/100BASE-TX Ethernet switches. IC Role / Device Role / Timing Role: High-fidelity, low-latency bus switch for differential pair routing and clock/data separation. Use Value: Maintains <250ps delay and 500MHz bandwidth to preserve signal integrity across twisted-pair interfaces. |
| Analog Signal Multiplexing | Legacy Bus Level Translation |
|
Use Scenario: Selecting between multiple sensor inputs (e.g., thermocouples, RTDs) in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Low-distortion, rail-to-rail analog switch with matched RON across channels. Use Value: Delivers <0.01% gain error and minimal THD due to flat RON and 4Ω matching-enabling 16-bit ADC accuracy. |
Use Scenario: Interfacing 3.3V microcontrollers to legacy 5V peripherals (e.g., EEPROMs, displays) without external level shifters. IC Role / Device Role / Timing Role: Voltage-tolerant bidirectional bus switch acting as passive level translator. Use Value: Eliminates need for active translators by supporting 5V signals on A/B ports while operating from 3.3V VCC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-bandwidth bus switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3245APWR | 8-bit, single-bank, 5V-tolerant, 6Ω RON, SOIC-24 package | Limited channel count; lacks independent multi-bank OE control and 500MHz bandwidth | Use where space-constrained 8-bit isolation suffices and multi-bank sequencing is unnecessary |
| PI3CH400QE | 20-bit, single-OE control, 5.5Ω RON, TSSOP-48, -40°C to +85°C | Shared enable disables all 20 bits simultaneously-no per-bank granularity or hot-swap sequencing | Select when full 20-bit concurrency is required but independent bank control is not needed |
Compared with SN74CBT3245APWR and PI3CH400QE, the QS32XVH384Q1G8 uniquely provides four independently enabled 5-bit banks, 4Ω RON, and verified 500MHz bandwidth-making it the only option supporting granular, sequenced hot-swap in dense 20-bit interconnects.
Availability
QS32XVH384Q1G8 is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and embedded networking applications requiring stable component supply, long-lifecycle support, and RoHS-compliant green packaging.
Supply support for QS32XVH384Q1G8 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 leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT markets.
QS32XVH384Q1G8 belongs to Renesas' legacy QuickSwitch® bus switch portfolio-designed specifically for high-fidelity, low-latency signal routing in hot-pluggable and mixed-voltage system architectures.
FAQ
What is the maximum signal voltage the QS32XVH384Q1G8 can switch?
The QS32XVH384Q1G8 supports rail-to-rail analog and digital signal switching from 0V to 5V. Its I/O terminals are rated for DC voltages up to +5.5V (VTERM(3)) and tolerate 5V signals regardless of whether VCC is 2.5V, 3.3V, or 0V-enabling safe 5V pass-through in mixed-supply systems and hot-swap scenarios. This capability is confirmed in the Absolute Maximum Ratings table and functional description.
Does the QS32XVH384Q1G8 require external pull-up or pull-down resistors on its OE pins?
No, the QS32XVH384Q1G8 OE inputs are LVTTL-compatible with defined VIH (≥2.0V at VCC ≥2.7V) and VIL (≤0.8V) thresholds and ±1μA leakage current. External biasing is unnecessary unless system-level noise immunity requires stronger static drive-its internal structure ensures clean, deterministic switching without external resistors under normal operation.
Can the QS32XVH384Q1G8 be used for analog audio signal routing?
Yes-the QS32XVH384Q1G8 is explicitly characterized for low-distortion analog switching, with flat RON over input voltage, 4Ω typical ON resistance, and 4pF OFF-state capacitance. Its rail-to-rail 0–5V range, absence of parasitic diodes, and high OFF-impedance make it suitable for line-level audio multiplexing where THD and crosstalk must remain below –80dB, as validated in application diagrams and electrical specs.
What is the thermal performance of the QS32XVH384Q1G8 in continuous operation?
The QS32XVH384Q1G8 is rated for industrial temperature operation (–40°C to +85°C) and specifies quiescent ICCQ ≤8mA at max VCC. With 4Ω RON and typical 30mA per channel, power dissipation remains low (<4mW/channel), and the QVSOP-48 package's thermal resistance (θJA ≈ 65°C/W) ensures junction temperatures stay within spec under standard airflow-no heatsink required for ≤20-bit concurrent switching at 25°C ambient.
Is the QS32XVH384Q1G8 pin-compatible with earlier IDT QS3VH384 variants?
Yes-the QS32XVH384Q1G8 retains identical pinout, function mapping, and electrical behavior as the original IDT QS3VH384 family, including the same 48-pin QVSOP (S1) footprint, A/B bus assignments, and OE pin locations. Renesas maintains full backward compatibility, and the "32X" prefix denotes updated green packaging (Q1G) while preserving all interface and timing specifications.
QS32XVH384Q1G8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 32XVH
- Package/Case:
- 48-FSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Bus Switch
- Circuit:
- 2 x 10:10
- Independent Circuits:
- 2
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QVSOP
QS32XVH384Q1G8 FAQ
1.How can I place an order for QS32XVH384Q1G8 through Aetrix?
Please submit a Request for Quotation (RFQ) for QS32XVH384Q1G8 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 QS32XVH384Q1G8 reliable?
The price and inventory of QS32XVH384Q1G8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS32XVH384Q1G8 is usually 5 days.
3.What payment methods are accepted for QS32XVH384Q1G8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS32XVH384Q1G8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS32XVH384Q1G8?
QS32XVH384Q1G8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS32XVH384Q1G8 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 QS32XVH384Q1G8?
For technical support, including QS32XVH384Q1G8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS32XVH384Q1G8 requirements.
6.How does Aetrix verify that QS32XVH384Q1G8 is sourced from the original manufacturer or authorized distributors?
All QS32XVH384Q1G8 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 QS32XVH384Q1G8 meets industry standards.
7.What is the process for return or replacement of QS32XVH384Q1G8?
All QS32XVH384Q1G8 units undergo pre-shipment inspection (PSI). If there is an issue with QS32XVH384Q1G8, 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 QS32XVH384Q1G8 part is unused and in its original packaging.
Return procedure for QS32XVH384Q1G8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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