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Renesas QS3VH384PAG
- Part No.:
- QS3VH384PAG
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
QS3VH384PAG.pdf
- Description:
- IC BUS SWITCH 10 X 1:1 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,817
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Product details
Overview
QS3VH384PAG from Renesas Electronics (formerly IDT) is a 10-bit, high-bandwidth bus switch with N-channel FET architecture, 2.3V–3.6V VCC operation, 4Ω typical ON resistance, 500MHz bandwidth, and rail-to-rail 0–5V analog switching capability. It enables bidirectional, near-zero-delay data flow in hot-swap-capable Ethernet LAN switches and ATM switching systems.
For engineers reviewing the QS3VH384PAG datasheet, QS3VH384PAG pinout, QS3VH384PAG application, or QS3VH384PAG equivalent, key selection criteria include its 5V-tolerant I/Os in both ON/OFF states, isolation under power-off conditions, LVTTL-compatible enable control, low 4pF OFF-state I/O capacitance, and industrial temperature range (–40°C to +85°C).
Technical Context
The QS3VH384PAG implements two independent 5-bit switch banks controlled by separate LVTTL-compatible OE inputs (1OE and 2OE), enabling selective channel activation without ground bounce or added propagation delay. Its N-channel FET design eliminates parasitic diodes to VCC, ensuring no DC path to supply or ground and true isolation when powered down.
It supports rail-to-rail analog signal switching (0–5V) with flat RON over voltage and temperature, 250ps typical propagation delay, and 5V tolerance on all I/Os regardless of VCC state-critical for mixed-voltage system interconnects and live-insertion interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - supports dual-supply 2.5V/3.3V logic domains without level shifters |
| RON (Typ.) | 4Ω at VCC = 3V - enables low-loss signal pass-through with minimal insertion loss |
| Bandwidth | Up to 500MHz - suitable for Fast Ethernet (100BASE-TX) and ATM 25/155 physical layer switching |
| I/O Capacitance (OFF) | 4pF typical - minimizes loading on source and destination buses during isolation |
| Propagation Delay | <250ps - preserves signal integrity in high-speed digital and analog multiplexing paths |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded communications equipment |
| 5V Tolerance | Yes on all A/B pins and controls - allows interfacing with legacy 5V peripherals while powered from 3.3V |
Pinout & Package
QS3VH384PAG is packaged in a 24-pin QSOP (Green, RoHS-compliant) with 0.65mm pitch and standard JEDEC MO-137AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A9 | Switch Bank A I/O | Bidirectional data terminals for first and second 5-bit banks (A0–A4, A5–A9) |
| B0–B9 | Switch Bank B I/O | Bidirectional data terminals mirroring A-side; each pair forms a single-pole single-throw switch |
| 1OE, 2OE | Enable Control Inputs | LVTTL-compatible active-low enables; independently activate Bank 1 (A0–A4/B0–B4) or Bank 2 (A5–A9/B5–B9) |
| VCC | Power Supply | 2.3V–3.6V core supply; powers internal logic and gate drive only-not connected to signal path |
| GND | Ground Reference | Signal and power return; decoupling required per high-frequency switching performance |
Key Features
| Feature | Design Value |
|---|---|
| No parasitic diode to VCC | Enables true power-off isolation: zero DC path between A/B terminals when VCC = 0V |
| Rail-to-rail analog switching | Supports full 0–5V signal swing without clipping-ideal for analog sensor muxing and relay replacement |
| Flat RON vs. VIN | Minimizes distortion across input voltage range-critical for low-distortion analog switch applications |
| Undershoot clamp diodes | Protects all switch and control pins against –3V transient undershoot (per AC rating) |
| Low ground bounce | Bidirectional zero-delay architecture avoids simultaneous switching noise on shared GND paths |
Applications
| Hot-Swappable Module Interface | Fast Ethernet LAN Switching |
|---|---|
Use Scenario: Live insertion/removal of line cards in carrier-grade telecom chassis without system reset or service interruption. IC Role / Device Role / Timing Role: Bidirectional bus switch isolating backplane data lanes during card insertion; provides 5V-tolerant, power-off-safe interface between 3.3V card logic and 5V backplane. Use Value: Eliminates need for mechanical relays or complex power sequencing-reduces MTTR and increases system uptime. | Use Scenario: Signal routing between PHY and MAC layers in 10/100BASE-TX Ethernet switches with mixed-voltage components. IC Role / Device Role / Timing Role: High-bandwidth, low-RON analog/digital bus switch enabling clean 100Mbps data transfer with sub-250ps delay and no added jitter. Use Value: Maintains signal integrity across twisted-pair interfaces while supporting 3.3V MAC and 5V PHY voltage domains. |
| ATM Cell Switching Node | Analog Sensor Multiplexer |
Use Scenario: Time-division multiplexing of 25Mbps or 155Mbps ATM cells across shared backplane resources in edge routers. IC Role / Device Role / Timing Role: Low-latency, high-isolation 10-bit switch bank enabling deterministic cell forwarding with <7.5ns turn-on/turn-off timing. Use Value: Meets strict ATM cell jitter and delay variation requirements without clock retiming or buffering. | Use Scenario: Consolidating multiple analog sensor outputs (e.g., thermocouples, RTDs) into a single ADC input channel in industrial PLCs. IC Role / Device Role / Timing Role: Rail-to-rail, low-distortion analog switch with 4Ω RON and 4pF OFF capacitance minimizing crosstalk and settling time. Use Value: Enables high-precision, multi-channel measurement with <0.01% gain error contribution from switch RON mismatch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3384CPWR | 5V-only VCC (4.5–5.5V); no 2.5V/3.3V support; 6Ω RON; same 24-pin TSSOP package | Requires 5V supply rail; not suitable for mixed 3.3V/5V systems without level translation | Select when system uses only 5V logic and lower cost is prioritized over voltage flexibility |
| PI3CHD384LEX | 3.3V-only VCC (2.7–3.6V); 5.5Ω RON; includes ESD protection up to ±8kV HBM; same pinout | Lacks 5V tolerance on I/Os in OFF state; higher RON increases insertion loss at high frequencies | Prefer for space-constrained designs needing enhanced ESD robustness where 5V tolerance is not required |
Compared with SN74CBT3384CPWR and PI3CHD384LEX, the QS3VH384PAG uniquely supports dual 2.5V/3.3V operation with guaranteed 5V I/O tolerance in both ON and OFF states-enabling direct interfacing across legacy and modern voltage domains without external components.
Availability
QS3VH384PAG is available at Aetrix Electronics and suitable for industrial Ethernet switches, hot-swap telecom modules, ATM switching nodes, and analog sensor multiplexers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for QS3VH384PAG 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, infrastructure, and IoT applications.
The QS3VH384PAG belongs to Renesas' QuickSwitch® bus switch product line, engineered specifically for high-speed, low-distortion signal routing in hot-plug-capable communications and mixed-voltage embedded systems.
FAQ
What is the maximum operating frequency of the QS3VH384PAG when used as a bus switch?
The QS3VH384PAG supports up to 500MHz small-signal bandwidth, verified via S-parameter measurements. Its propagation delay remains below 250ps, and it maintains signal integrity up to 100Mbps in Fast Ethernet applications. The enable toggle frequency is rated to 20MHz at VCC = 3.3V, making the QS3VH384PAG suitable for high-speed digital and analog multiplexing where timing precision is critical.
Does the QS3VH384PAG support 5V-tolerant I/Os when VCC is powered at 3.3V?
Yes, the QS3VH384PAG guarantees 5V tolerance on all A/B I/O pins and control inputs regardless of VCC state-including when VCC = 0V (power-off). This is enabled by its N-channel FET architecture with no parasitic diode to VCC. As a result, the QS3VH384PAG safely interfaces 5V signals in both ON and OFF states while powered from 2.3V–3.6V, eliminating level shifters in mixed-voltage designs.
How does the QS3VH384PAG achieve isolation during hot-swap events?
The QS3VH384PAG achieves true isolation during hot-swap events through its N-channel FET structure with no parasitic diode to VCC. When VCC is removed or ramping, the switches enter a high-impedance state with ±1μA off-state leakage and no DC path between A and B terminals. This prevents back-driving, bus contention, or latch-up-making the QS3VH384PAG ideal for live-insertion interfaces in telecom and server backplanes.
What package type is used for the QS3VH384PAG, and is it RoHS-compliant?
The QS3VH384PAG is supplied in a 24-pin QSOP package with green (lead-free/RoHS-compliant) finish, per ordering code "PAG". It conforms to JEDEC MO-137AC mechanical dimensions and thermal profile, supporting standard reflow soldering. The package features 0.65mm lead pitch and is compatible with automated assembly processes used in industrial and telecom manufacturing.
Can the QS3VH384PAG be used for analog signal switching, and what is its distortion performance?
Yes, the QS3VH384PAG is explicitly characterized for low-distortion analog switching: it offers rail-to-rail 0–5V operation, flat RON vs. input voltage, and 4Ω typical ON resistance with excellent matching (<0.5Ω max mismatch between channels). THD is not specified, but typical RON flatness and 4pF OFF capacitance ensure minimal harmonic generation-validated in applications like sensor multiplexing and relay replacement where signal fidelity is essential.
QS3VH384PAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 3VH
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Bus Switch
- Circuit:
- 10 x 1:1
- Independent Circuits:
- 1
- 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:
- 24-TSSOP
QS3VH384PAG FAQ
1.How can I place an order for QS3VH384PAG through Aetrix?
Please submit a Request for Quotation (RFQ) for QS3VH384PAG 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 QS3VH384PAG reliable?
The price and inventory of QS3VH384PAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS3VH384PAG is usually 5 days.
3.What payment methods are accepted for QS3VH384PAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS3VH384PAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS3VH384PAG?
QS3VH384PAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS3VH384PAG 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 QS3VH384PAG?
For technical support, including QS3VH384PAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS3VH384PAG requirements.
6.How does Aetrix verify that QS3VH384PAG is sourced from the original manufacturer or authorized distributors?
All QS3VH384PAG 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 QS3VH384PAG meets industry standards.
7.What is the process for return or replacement of QS3VH384PAG?
All QS3VH384PAG units undergo pre-shipment inspection (PSI). If there is an issue with QS3VH384PAG, 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 QS3VH384PAG part is unused and in its original packaging.
Return procedure for QS3VH384PAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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