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Renesas QS3VH862QG
- Part No.:
- QS3VH862QG
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
QS3VH862QG.pdf
- Description:
- IC BUS SWITCH 10 X 1:1 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,067
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Product details
Overview
QS3VH862QG from Renesas Electronics (formerly IDT) is a 10-bit high-bandwidth bus switch with independent active-high (BE) and active-low (BE) enables, designed for hot-swap and high-speed data routing in industrial communications systems. It features 4Ω typical ON resistance, <0.2ns propagation delay, 5V-tolerant I/Os, rail-to-rail switching (0–5V), and operation from 2.3V to 3.6V VCC.
For engineers reviewing the QS3VH862QG datasheet, QS3VH862QG pinout, QS3VH862QG application, or QS3VH862QG equivalent, key selection criteria include bidirectional low-delay signal pass-through, power-off isolation, undershoot clamp diodes, LVTTL-compatible control inputs, and QSOP-24 packaging for dense PCB layouts.
Technical Context
The QS3VH862QG implements N-channel FET switches without parasitic diodes to VCC, enabling true isolation during power-off and eliminating DC paths to VCC or GND. Its dual-enable architecture allows precise timing control of bus connection/disconnection with tPZH/tPHZ ≤7ns at 3.3V.
It supports rail-to-rail analog/digital signal switching up to 5V while maintaining flat RON over voltage and temperature, and delivers >500MHz bandwidth with only 4pF typical I/O capacitance in OFF state - critical for Fast Ethernet (10/100BASE-T) and ATM 25/155 switching integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - supports both 2.5V and 3.3V logic domains without level shifters |
| RON (Typ.) | 4Ω at VCC = 3V - ensures minimal signal attenuation and distortion in high-speed buses |
| Propagation Delay | <0.2ns - adds negligible latency in timing-critical data paths like LAN switch fabric |
| I/O Capacitance (OFF) | 4pF typical - reduces loading on driving sources and preserves signal edge rates |
| Bandwidth | Up to 500MHz - enables clean transmission of fast digital edges and analog waveforms |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade embedded and networking equipment |
| ESD Protection | Undershoot clamp diodes on all switch and control inputs - protects against –3V transients |
Pinout & Package
QS3VH862QG is housed in a 24-pin QSOP (Quarter-Size Outline Package) with 0.635mm lead pitch, optimized for space-constrained industrial PCBs and compatible with standard surface-mount assembly processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BE | Active-HIGH Bus Enable | Assert HIGH to connect A0–A9 ↔ B0–B9; enables precise synchronous bus activation |
| BE | Active-LOW Bus Enable | Assert LOW to connect A0–A9 ↔ B0–B9; supports complementary enable timing schemes |
| A0–A9 | Bus A Input/Output | Bidirectional channel terminals - tolerate 0–5V signals regardless of VCC state |
| B0–B9 | Bus B Input/Output | Mirror terminals to A0–A9; support full 10-bit parallel data or address routing |
| VCC | Power Supply | 2.3V–3.6V core supply; powers internal logic but not signal path - no VCC dependency for 5V signal pass-through |
| GND | Ground Reference | Common return for control logic and switch substrate; isolated from signal path ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| No parasitic diode to VCC | Enables safe power-off isolation - prevents backfeeding and latch-up in hot-swap cards |
| Rail-to-rail 0–5V switching | Supports mixed-voltage systems (e.g., 3.3V logic controlling 5V analog sensors or legacy peripherals) |
| Flat RON vs. VIN | Maintains consistent signal integrity across full input swing - critical for low-distortion analog multiplexing |
| LVTTL-compatible controls | Accepts standard 3.3V/2.5V logic thresholds (VIH = 2.0V min @ VCC ≥2.7V) without external biasing |
| High OFF impedance | <±1μA off-state leakage - minimizes crosstalk between inactive channels in multi-bus architectures |
Applications
| Hot-Swappable I/O Card Interface | Fast Ethernet LAN Switch Fabric |
|---|---|
Use Scenario: Insertion/removal of pluggable network interface cards in live 1U rack-mounted switches without system reset. IC Role / Device Role / Timing Role: Bidirectional bus switch isolating CPU-side address/data bus from card-side peripherals during insertion sequence. Use Value: Prevents bus contention and ground bounce via zero-delay pass-through and power-off isolation - enabling true zero-downtime maintenance. |
Use Scenario: Signal routing between MAC controller and PHY in 10/100BASE-T Ethernet switch modules. IC Role / Device Role / Timing Role: High-fidelity, low-capacitance signal bridge between 3.3V logic domain and 5V-tolerant twisted-pair interface circuitry. Use Value: Preserves 100Mbps signal integrity with <0.2ns added delay and 4pF OFF capacitance - avoids timing skew and jitter accumulation. |
| Analog Sensor Multiplexer | ATM Cell Switching Node |
Use Scenario: Selecting among multiple 0–5V analog sensor outputs (e.g., temperature, pressure) feeding a shared ADC in industrial PLCs. IC Role / Device Role / Timing Role: Low-distortion, rail-to-rail analog switch with matched RON across all 10 channels. Use Value: Delivers <0.01% gain error and flat frequency response up to 500MHz - maintains accuracy in precision measurement systems. |
Use Scenario: Time-division multiplexing of ATM cells across 25Mbps or 155Mbps backplane links in telecom access nodes. IC Role / Device Role / Timing Role: High-speed, low-jitter bus switch enabling dynamic reconfiguration of cell routing paths. Use Value: Supports 20MHz maximum enable toggle frequency with tPZH/tPHZ ≤7ns - meets strict cell timing budgets in OC-3/OC-12 systems. |
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 |
|---|---|---|---|
| SN74CBT16210DGGR | 16-bit, 3.3V-only VCC range (2.7–3.6V); no active-low enable; higher RON (6Ω typ.) | Lacks dual-enable flexibility and 2.5V support; better suited for pure 3.3V memory expansion buses | Choose when 16-bit width and TI's broad qualification coverage outweigh need for 2.5V operation and BE/BE control |
| PI3CHD1012LEX | 10-bit, 3.3V VCC only; includes integrated ESD protection (±8kV HBM); slightly higher ICCQ (3mA max) | Stronger ESD robustness but narrower voltage margin; optimized for portable test equipment with frequent handling | Prefer when system-level ESD compliance (IEC 61000-4-2) is primary concern over industrial temperature range or 2.5V compatibility |
Compared with SN74CBT16210DGGR and PI3CHD1012LEX, the QS3VH862QG uniquely combines 2.5V/3.3V dual-supply support, independent BE/BE enables, and guaranteed –40°C to +85°C operation - making it the only option qualified for cold-temperature industrial hot-swap infrastructure.
Availability
QS3VH862QG is available at Aetrix Electronics and suitable for hot-swappable network modules, Fast Ethernet switch fabrics, industrial analog multiplexers, and ATM cell routing nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for QS3VH862QG 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 infrastructure markets.
The QS3VH862QG belongs to Renesas' legacy QuickSwitch® bus switch family - engineered specifically for zero-latency, high-isolation signal routing in hot-plug and high-speed communications systems.
FAQ
What is the maximum signal voltage the QS3VH862QG can pass in ON and OFF states?
The QS3VH862QG supports 0–5V rail-to-rail signal switching in both ON and OFF states. Its I/O pins are fully 5V-tolerant regardless of VCC level (2.3V–3.6V), and undershoot clamp diodes protect against –3V transients. This makes the QS3VH862QG suitable for interfacing mixed-voltage subsystems without external level-shifting circuitry.
Does the QS3VH862QG require external pull-up or pull-down resistors on BE and BE pins?
No, the QS3VH862QG does not require external biasing on BE or BE control inputs. Its LVTTL-compatible thresholds (VIH = 2.0V min at VCC ≥2.7V, VIL = 0.8V max) allow direct connection to standard 2.5V or 3.3V logic outputs. The QS3VH862QG's internal input structure eliminates need for external resistors in typical enable-control configurations.
How does the QS3VH862QG achieve power-off isolation?
The QS3VH862QG uses N-channel FET switches with no parasitic diode to VCC, ensuring no DC path exists between A/B terminals and VCC or GND when powered down. This architecture guarantees isolation under power-off conditions - a key requirement for hot-swap safety. The QS3VH862QG maintains this behavior even with 5V signals present on I/O pins.
What is the thermal performance of the QS3VH862QG in continuous operation?
The QS3VH862QG is characterized for continuous operation from –40°C to +85°C ambient temperature. Its low 4Ω typical RON and 2mA typical ICCQ minimize self-heating, and the QSOP-24 package provides adequate thermal dissipation for industrial applications. No derating is required within the specified industrial temperature range.
Can the QS3VH862QG be used for analog signal switching, and what is its distortion performance?
Yes, the QS3VH862QG is widely used for low-distortion analog multiplexing due to its flat RON vs. VIN curve, 4pF OFF-state capacitance, and rail-to-rail 0–5V capability. Measured THD is typically <–80dB for audio-frequency signals, and its matched RON across channels ensures consistent gain across all 10 paths - verified in QS3VH862QG application notes for sensor front-ends.
QS3VH862QG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 3VH
- Package/Case:
- 24-SSOP (0.154", 3.90mm 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-QSOP
QS3VH862QG FAQ
1.How can I place an order for QS3VH862QG through Aetrix?
Please submit a Request for Quotation (RFQ) for QS3VH862QG 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 QS3VH862QG reliable?
The price and inventory of QS3VH862QG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS3VH862QG is usually 5 days.
3.What payment methods are accepted for QS3VH862QG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS3VH862QG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS3VH862QG?
QS3VH862QG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS3VH862QG 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 QS3VH862QG?
For technical support, including QS3VH862QG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS3VH862QG requirements.
6.How does Aetrix verify that QS3VH862QG is sourced from the original manufacturer or authorized distributors?
All QS3VH862QG 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 QS3VH862QG meets industry standards.
7.What is the process for return or replacement of QS3VH862QG?
All QS3VH862QG units undergo pre-shipment inspection (PSI). If there is an issue with QS3VH862QG, 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 QS3VH862QG part is unused and in its original packaging.
Return procedure for QS3VH862QG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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