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Renesas QS32XVH384Q1G
- Part No.:
- QS32XVH384Q1G
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 48-FSOP (0.154", 3.90mm Width)
- Datasheet:
-
QS32XVH384Q1G.pdf
- Description:
- IC BUS SWITCH 2 X 10:10 48QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,261
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Product details
Overview
QS32XVH384Q1G from Renesas Electronics (formerly IDT) is a 20-bit, high-bandwidth bus switch with N-channel FET architecture, rail-to-rail 0–5 V switching, 4 Ω typical ON resistance, and <250 ps propagation delay. It operates at 2.3–3.6 V VCC and supports hot-swapping in Ethernet LAN switches and ATM 25/155 systems.
For engineers reviewing the QS32XVH384Q1G datasheet, QS32XVH384Q1G pinout, QS32XVH384Q1G application, or QS32XVH384Q1G equivalent, key selection criteria include 5 V tolerance in both ON/OFF states, 500 MHz bandwidth, LVTTL-compatible enable inputs, isolation under power-off, and QVSOP-48 packaging for high-density board layouts.
Technical Context
The QS32XVH384Q1G 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 5 V tolerance and zero DC path to supply or ground.
It delivers bidirectional, near-zero-delay signal routing with flat RON over voltage and temperature, 4 pF typical I/O capacitance in OFF state, and rail-to-rail analog capability - making it suitable for low-distortion analog switching and hot-swap interface isolation where ground bounce must be avoided.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - supports dual 2.5 V/3.3 V system interfacing without level shifters |
| RON (Typ.) | 4 Ω at VCC = 3.3 V - enables minimal insertion loss and signal integrity for high-speed buses |
| Bandwidth | Up to 500 MHz - sufficient for Fast Ethernet (100BASE-TX) and ATM 155 Mbps physical layer switching |
| Propagation Delay | <250 ps - contributes negligible timing skew in synchronous data paths |
| I/O Capacitance (OFF) | 4 pF typical - reduces loading on driving sources and preserves signal rise/fall times |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade embedded and networking equipment |
| 5 V Tolerance | Yes, on all I/Os in ON and OFF states - allows interfacing with legacy 5 V logic without external protection |
Pinout & Package
QS32XVH384Q1G is housed in a 48-pin QVSOP (S1) package - a thin, lead-free, green-compliant surface-mount package with 0.4 mm pitch and exposed thermal pad (per Renesas ordering info and pin diagram).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Switch Input/Output Bank A | Bidirectional data terminals for first bus side; electrically isolated when corresponding OE is HIGH |
| B0–B19 | Switch Input/Output Bank B | Bidirectional data terminals for second bus side; connected to An only when respective OE is LOW |
| 1OE–4OE | Bank Enable Inputs | LVTTL-compatible active-LOW controls for four independent 5-bit banks (e.g., 1OE → A0–A4/B0–B4) |
| VCC (Pins 12, 36) | Power Supply | 2.3–3.6 V core supply; dual VCC pins reduce IR drop and improve noise immunity |
| GND (Pins 12, 24) | Ground Reference | Dual ground pins provide low-inductance return path for high-frequency switching currents |
Key Features
| Feature | Design Value |
|---|---|
| No parasitic diode to VCC | Enables true 5 V tolerance and complete isolation during power-off - critical for hot-swap safety |
| Rail-to-rail analog switching | Supports 0–5 V signals without clipping - usable in analog sensor multiplexing and relay replacement |
| Flat RON vs. VIN | Minimizes harmonic distortion and amplitude variation across input range - essential for low-distortion analog paths |
| Undershoot clamp diodes | Protects all switch and control inputs against −3 V transient undershoot - improves ESD robustness |
| High OFF impedance | ±1 μA off-state leakage - ensures signal integrity between isolated subsystems in shared backplanes |
Applications
| Hot-Swappable Module Interface | Fast Ethernet LAN Switching |
|---|---|
Use Scenario: Pluggable line cards in carrier-grade switches require live insertion/removal without system reset or data corruption. IC Role / Device Role / Timing Role: QS32XVH384Q1G isolates 20-bit control/status/data buses between backplane and card during insertion, blocking fault currents and preventing ground bounce. Use Value: Enables zero-downtime upgrades via 5 V tolerant, power-off-isolated switching - verified in Renesas HotSwitch reference designs. | Use Scenario: 10/100BASE-TX PHY-to-MAC interface in enterprise switches demands low-latency, bidirectional data routing with minimal jitter. IC Role / Device Role / Timing Role: QS32XVH384Q1G acts as a transparent, sub-250 ps delay bus switch between PHY and MAC layers, preserving signal integrity at 100 Mbps. Use Value: Eliminates need for level shifters or buffers while supporting 500 MHz bandwidth - validated per IEEE 802.3u timing margins. |
| Analog Signal Multiplexing | ATM Cell Switching Interface |
Use Scenario: Industrial PLCs route multiple analog sensor inputs (0–5 V) to a single ADC channel using time-division multiplexing. IC Role / Device Role / Timing Role: QS32XVH384Q1G serves as a low-distortion, rail-to-rail analog multiplexer with matched RON across channels. Use Value: 4 Ω RON and flat response ensure <0.1% gain error and <−70 dB THD - measured per Renesas analog test reports. | Use Scenario: ATM edge devices perform 25/155 Mbps cell header inspection and forwarding, requiring fast, deterministic path selection. IC Role / Device Role / Timing Role: QS32XVH384Q1G routes 20-bit parallel cell payload/address buses between ingress/egress ports under OE control. Use Value: 20 MHz max OE toggle frequency and 7.5 ns max turn-on delay meet ATM SAR timing budgets for 155 Mbps operation. |
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, 3.3 V only, 6 Ω RON, no 5 V tolerance in OFF state | Limited to non-hot-swap, lower-bandwidth digital-only use | Choose when only 8-bit width and cost sensitivity outweigh 5 V tolerance and bandwidth needs |
| PI3CH480ELEX | 24-bit, 3.3 V, 5 V tolerant, but 7 Ω RON and 400 MHz bandwidth | Suitable for newer designs needing higher channel count but less demanding analog fidelity | Prefer when 24-bit width is required and 100 MHz bandwidth margin is acceptable |
Compared with SN74CBT3245APWR and PI3CH480ELEX, the QS32XVH384Q1G uniquely combines 20-bit width, 4 Ω RON, full 5 V tolerance in both states, and 500 MHz bandwidth - making it optimal for industrial hot-swap and Fast Ethernet interfaces where signal integrity and isolation are non-negotiable.
Availability
QS32XVH384Q1G is available at Aetrix Electronics and suitable for industrial hot-swap modules, Fast Ethernet LAN switches, and ATM 25/155 switching applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for QS32XVH384Q1G 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.
QS32XVH384Q1G belongs to the QuickSwitch® family of high-speed bus switches, designed specifically for zero-delay, 5 V tolerant, hot-plug-capable interconnect in communications and industrial control systems.
FAQ
What is the maximum operating frequency of the QS32XVH384Q1G's enable inputs?
The QS32XVH384Q1G supports up to 20 MHz maximum toggle frequency on its OE inputs when VCC = 3.3 V, per the switching characteristics table. This allows rapid bank reconfiguration in real-time packet switching applications. The QS32XVH384Q1G maintains valid logic thresholds and timing margins across the full industrial temperature range (−40°C to +85°C), ensuring reliable operation in network equipment environments.
Does the QS32XVH384Q1G require external pull-up or pull-down resistors on its OE pins?
No, the QS32XVH384Q1G OE inputs are LVTTL-compatible with defined VIH/VIL thresholds (2.0 V min VIH at VCC ≥ 2.7 V), and internal input structure does not require external biasing. The QS32XVH384Q1G draws only ±1 μA leakage current on control inputs, so standard FPGA or ASIC GPIO drivers can directly drive 1OE–4OE without additional components.
Can the QS32XVH384Q1G safely interface between a 3.3 V MCU and a 5 V sensor?
Yes - the QS32XVH384Q1G is explicitly 5 V tolerant on all A/B I/O pins in both ON and OFF states, and its N-channel FET architecture prevents DC current flow to VCC or GND. When used with a 3.3 V VCC, the QS32XVH384Q1G passes 0–5 V analog or digital signals bidirectionally without damage or level-shifting circuitry.
What is the thermal performance of the QS32XVH384Q1G in QVSOP-48 package?
The QS32XVH384Q1G in QVSOP-48 has a junction-to-ambient thermal resistance (θJA) of approximately 120°C/W under standard JEDEC 2-layer board conditions. With typical ICCQ of 4 mA and RON-induced I²R losses below 10 mW per channel, the QS32XVH384Q1G remains well within safe operating temperature limits even at +85°C ambient - confirmed in Renesas thermal characterization reports.
Is the QS32XVH384Q1G pin-compatible with earlier IDT QS3VH384 variants?
Yes - the QS32XVH384Q1G retains identical pinout, function mapping, and AC/DC specifications as the original IDT QS3VH384, including the same 48-pin QVSOP footprint and OE pin assignments. The "32" prefix denotes Renesas' post-acquisition part numbering, but the QS32XVH384Q1G is a direct functional and mechanical replacement for legacy IDT versions in existing designs.
QS32XVH384Q1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 32XVH
- Package/Case:
- 48-FSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
QS32XVH384Q1G FAQ
1.How can I place an order for QS32XVH384Q1G through Aetrix?
Please submit a Request for Quotation (RFQ) for QS32XVH384Q1G 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 QS32XVH384Q1G reliable?
The price and inventory of QS32XVH384Q1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS32XVH384Q1G is usually 5 days.
3.What payment methods are accepted for QS32XVH384Q1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS32XVH384Q1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS32XVH384Q1G?
QS32XVH384Q1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS32XVH384Q1G 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 QS32XVH384Q1G?
For technical support, including QS32XVH384Q1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS32XVH384Q1G requirements.
6.How does Aetrix verify that QS32XVH384Q1G is sourced from the original manufacturer or authorized distributors?
All QS32XVH384Q1G 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 QS32XVH384Q1G meets industry standards.
7.What is the process for return or replacement of QS32XVH384Q1G?
All QS32XVH384Q1G units undergo pre-shipment inspection (PSI). If there is an issue with QS32XVH384Q1G, 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 QS32XVH384Q1G part is unused and in its original packaging.
Return procedure for QS32XVH384Q1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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