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Renesas QS3VH16211PAG8
- Part No.:
- QS3VH16211PAG8
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
QS3VH16211PAG8.pdf
- Description:
- IC BUS SWITCH 12 X 1:1 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:205
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Product details
Overview
QS3VH16211PAG8 from Renesas Electronics (formerly IDT) is a 24-bit bidirectional bus switch IC with N-channel FET architecture, 4 Ω typical ON resistance, <250 ps propagation delay, and 5 V tolerance in both ON/OFF states. It operates from 2.3 V to 3.6 V and supports hot-swappable 10/100 Base-T Ethernet switching.
For engineers reviewing the QS3VH16211PAG8 datasheet, QS3VH16211PAG8 pinout, QS3VH16211PAG8 application, or QS3VH16211PAG8 equivalent, key selection criteria include rail-to-rail 0–5 V switching capability, 500 MHz bandwidth, LVTTL-compatible enable control, 4 pF I/O capacitance, and TSSOP-56 package compatibility for high-density board layouts.
Technical Context
The QS3VH16211PAG8 implements dual independent 12-bit switch banks (1A↔1B and 2A↔2B), each controlled by separate OE inputs (1OE, 2OE), enabling selective bus segmentation without signal inversion or added ground bounce. Its N-channel-only FET design eliminates parasitic diodes to VCC, ensuring true isolation under power-off conditions and no DC path to supply or ground.
It delivers flat RON across input voltage (0–5 V) and temperature (−40°C to +85°C), with guaranteed tPZH/tPHZ ≤9 ns and tPLH/tPHL ≤0.2 ns, making it suitable for high-speed digital bus gating where timing predictability and low inter-channel RON mismatch are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - Supports mixed 2.5 V/3.3 V system interfacing without level shifters |
| RON (Typ.) | 4 Ω at VCC = 3 V - Enables low-loss signal pass-through for wide digital buses up to 500 MHz |
| Propagation Delay | <0.2 ns - Adds negligible timing skew in high-speed synchronous bus paths |
| I/O Capacitance | 4 pF (OFF), 8 pF (ON) - Minimizes loading on driving sources and preserves signal integrity |
| 5 V Tolerance | Yes on all A/B pins and controls - Allows safe interfacing with 5 V logic while powered from 3.3 V or 2.5 V |
| Operating Temp | −40°C to +85°C - Qualified for industrial-grade embedded and networking equipment |
| Bandwidth | Up to 500 MHz - Sufficient for Fast Ethernet (100 Mbps) and ATM 25/155 physical layer switching |
Pinout & Package
TSSOP-56 (Thin Shrink Small Outline Package, Green, 12.5 mm × 6.1 mm, 0.5 mm pitch) - RoHS-compliant, surface-mount package optimized for automated assembly and thermal performance in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A12, 2A1–2A12 | Switch Input/Output Bank A/B | Bidirectional data terminals; each pair (xAn/xBn) forms one switch channel |
| 1B1–1B12, 2B1–2B12 | Switch Input/Output Bank A/B | Complementary bus-side terminals; electrically identical to A pins, fully interchangeable |
| 1OE, 2OE | Enable Control Input | Active-low enables for respective 12-bit banks; L = connect, H = high-impedance disconnect |
| VCC | Power Supply | Single 2.3–3.6 V supply for logic and switch bias; no separate analog rail required |
| GND | Ground Reference | Common return for all I/O and internal circuitry; multiple GND pins reduce ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| No parasitic diode to VCC | Enables true power-off isolation - prevents backfeeding and latch-up during hot-swap events |
| Rail-to-rail switching (0–5 V) | Supports full-swing analog or digital signals without clipping or distortion across entire voltage range |
| Undershoot clamp diodes | Protects all switch and control pins from −3 V transient undershoot, improving ESD robustness |
| RON matching between channels | Ensures uniform timing and amplitude response across all 24 channels - critical for parallel bus integrity |
| LVTTL-compatible control inputs | Accepts standard 3.3 V logic thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), simplifying interface with microcontrollers and FPGAs |
Applications
| Hot-Swappable LAN Modules | High-Speed Digital Bus Isolation |
|---|---|
Use Scenario: Insertion/removal of network interface cards in live 10/100 Base-T Ethernet switches without system reset or data corruption. IC Role / Device Role / Timing Role: Bidirectional bus gate isolating CPU/RAM address/data buses from pluggable card logic during insertion detection and power sequencing. Use Value: Prevents bus contention and ground bounce via 5 V-tolerant, zero-delay switching and power-off isolation. | Use Scenario: Segmentation of 24-bit parallel data paths (e.g., memory-mapped peripherals or FPGA I/O banks) to reduce capacitive loading and crosstalk. IC Role / Device Role / Timing Role: Low-RON, high-bandwidth signal bridge enabling dynamic routing without introducing setup/hold violations. Use Value: Maintains signal fidelity with 4 pF I/O capacitance and sub-0.2 ns propagation delay across all channels. |
| ATM Cell Switching | Analog Signal Routing |
Use Scenario: Physical layer switching of ATM 25/155 Mbps serial streams in telecom access equipment requiring deterministic latency. IC Role / Device Role / Timing Role: High-fidelity, low-jitter path selector for differential or single-ended clock/data pairs in SONET/SDH framer interfaces. Use Value: Flat RON vs. VIN and 500 MHz bandwidth preserve edge rate and minimize intersymbol interference. | Use Scenario: Replacing electromechanical relays in test instrumentation for routing low-distortion analog signals (e.g., audio, sensor outputs). IC Role / Device Role / Timing Role: Rail-to-rail analog switch with near-zero THD and no charge injection due to N-FET-only topology. Use Value: Eliminates relay wear-out and bounce while supporting 0–5 V signal range and 4 Ω on-resistance for minimal gain error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT16212DGGR | 5 V tolerant, 24-bit, 3.3 V only (VCC = 3.3 V ± 0.3 V); RON = 5 Ω typical; tPD = 0.25 ns max | Optimized for 3.3 V systems only; lacks 2.5 V operation and undershoot clamps | Prefer when strict 3.3 V supply and TI ecosystem compatibility are prioritized over multi-voltage flexibility |
| PI3CH480ELEX | 24-bit, 3.3 V, 5 V tolerant; RON = 6 Ω typical; tPD = 0.3 ns max; includes auto-power-down mode | Higher RON and propagation delay; adds quiescent current reduction feature not present in QS3VH16211PAG8 | Choose when ultra-low ICCQ (<1 μA) in standby is required, accepting minor speed/capacitance trade-offs |
Compared with SN74CBT16212DGGR and PI3CH480ELEX, the QS3VH16211PAG8 offers broader VCC range (2.3–3.6 V), lower RON (4 Ω), and integrated undershoot protection - making it optimal for mixed-voltage industrial hot-swap and high-fidelity analog routing where supply margin and transient immunity are critical.
Availability
QS3VH16211PAG8 is available at Aetrix Electronics and suitable for hot-swappable Ethernet modules, high-speed digital bus isolation, and ATM cell switching requiring stable component supply across extended temperature and long product lifecycles.
Supply support for QS3VH16211PAG8 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 QS3VH16211PAG8 belongs to Renesas' QuickSwitch® bus switch family, engineered specifically for high-bandwidth, low-latency digital and analog signal routing in hot-plug-capable networking and embedded systems.
FAQ
What is the maximum operating frequency supported by the QS3VH16211PAG8?
The QS3VH16211PAG8 supports up to 500 MHz bandwidth for signal switching, verified by its 4 pF typical I/O capacitance and 4 Ω RON. While the enable toggle frequency is rated up to 20 MHz (at VCC = 3.3 V), the device's intrinsic RC-limited bandwidth enables reliable operation with Fast Ethernet (100 Mbps) and ATM 155 Mbps data streams without signal degradation.
Does the QS3VH16211PAG8 require external pull-up or pull-down resistors on its OE pins?
No, the QS3VH16211PAG8 OE inputs are LVTTL-compatible with defined VIH (≥2.0 V) and VIL (≤0.8 V) thresholds at VCC = 2.7–3.6 V, and exhibit ±1 μA leakage. External biasing is unnecessary when driven directly by standard logic outputs; however, pull-downs may be used in floating-control scenarios to ensure default OFF state during power-up.
Can the QS3VH16211PAG8 safely interface between 3.3 V and 5 V logic domains?
Yes - all A/B I/O pins and OE inputs are 5 V tolerant in both ON and OFF states, allowing direct connection to 5 V signals while powered from 2.5 V or 3.3 V. This eliminates level-shifter requirements in mixed-voltage systems, provided VCC remains within 2.3–3.6 V and no sustained overvoltage beyond 5.5 V occurs.
What is the thermal performance of the QS3VH16211PAG8 in continuous operation?
The QS3VH16211PAG8 is characterized for −40°C to +85°C operation with 3 mA typical quiescent current (ICCQ). Its TSSOP-56 package provides adequate thermal dissipation for typical bus-switching loads; junction temperature rise remains within specification under 120 mA per pin max output current and standard PCB copper area (≥1 in² 2 oz Cu).
How does the QS3VH16211PAG8 achieve power-off isolation?
The QS3VH16211PAG8 uses an N-channel-only FET structure with no parasitic diode to VCC, ensuring no DC conduction path exists between A/B terminals when VCC = 0 V. This design guarantees >1 MΩ off-state impedance and prevents backfeeding - a critical requirement for hot-swap compliance in QS3VH16211PAG8-based systems.
QS3VH16211PAG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 3VH
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 12 x 1:1
- 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:
- 56-TSSOP
QS3VH16211PAG8 FAQ
1.How can I place an order for QS3VH16211PAG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for QS3VH16211PAG8 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 QS3VH16211PAG8 reliable?
The price and inventory of QS3VH16211PAG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS3VH16211PAG8 is usually 5 days.
3.What payment methods are accepted for QS3VH16211PAG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS3VH16211PAG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS3VH16211PAG8?
QS3VH16211PAG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS3VH16211PAG8 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 QS3VH16211PAG8?
For technical support, including QS3VH16211PAG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS3VH16211PAG8 requirements.
6.How does Aetrix verify that QS3VH16211PAG8 is sourced from the original manufacturer or authorized distributors?
All QS3VH16211PAG8 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 QS3VH16211PAG8 meets industry standards.
7.What is the process for return or replacement of QS3VH16211PAG8?
All QS3VH16211PAG8 units undergo pre-shipment inspection (PSI). If there is an issue with QS3VH16211PAG8, 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 QS3VH16211PAG8 part is unused and in its original packaging.
Return procedure for QS3VH16211PAG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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