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Renesas QS3VH16244PAG8
- Part No.:
- QS3VH16244PAG8
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
QS3VH16244PAG8.pdf
- Description:
- IC BUS SWITCH 4 X 1:1 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,302
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Product details
Overview
QS3VH16244PAG8 from Renesas Electronics (formerly IDT) is a 16-bit bidirectional bus switch IC with LVTTL-compatible enable control, 2.3V–3.6V VCC operation, 4Ω typical ON resistance, <0.2ns propagation delay, and 5V-tolerant I/Os. It enables hot-swappable, high-bandwidth signal routing in Ethernet LAN switches and live-system card interfaces.
For engineers reviewing the QS3VH16244PAG8 datasheet, QS3VH16244PAG8 pinout, QS3VH16244PAG8 application, or QS3VH16244PAG8 equivalent, key selection criteria include rail-to-rail 0–5V switching capability, sub-250ps delay budget, 500MHz bandwidth, industrial temperature range (–40°C to +85°C), and TSSOP-48 package compatibility.
Technical Context
The QS3VH16244PAG8 implements 16 independent N-channel FET switches without parasitic diodes to VCC, enabling true isolation during power-off and eliminating DC paths to VCC or GND. Its architecture supports bidirectional data flow with no added ground bounce and maintains 5V tolerance in both ON and OFF states.
Control logic uses LVTTL-compatible xG inputs to enable/disable all four 4-bit switch groups (1G–4G). Each channel exhibits flat RON vs. input voltage, excellent RON matching (<1Ω variation), and low I/O capacitance (4pF typical when OFF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - supports dual-supply 2.5V/3.3V systems without level shifters |
| RON (Typ.) | 4Ω at VCC = 3V - ensures minimal insertion loss and signal integrity for high-speed buses |
| Propagation Delay | <0.2ns - contributes negligible timing budget in 100Mbps+ Ethernet and hot-swap applications |
| I/O Capacitance | 4pF (OFF), 8pF (ON) - reduces loading on driving sources and preserves edge rates |
| Bandwidth | 500MHz - supports full-rate Fast Ethernet (100BASE-TX) and ATM 155Mbps switching |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade embedded networking and telecom equipment |
| 5V Tolerance | Yes on all I/Os and controls - allows interfacing with legacy 5V logic without external protection |
Pinout & Package
TSSOP-48 package with 0.5mm pitch, 12.5mm × 6.1mm body, lead-free and RoHS-compliant (Green PAG suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1G–4G | Group Enable Inputs | LVTTL-compatible active-low enables for four independent 4-bit switch banks |
| 1A1–4A4, 1Y1–4Y4 | Bidirectional Switch Terminals | Paired A/Y pins per channel; no directionality - signal flows either way when enabled |
| VCC (Pins 7, 11, 18, 29, 31) | Power Supply | Multiple distributed VCC pins reduce supply impedance and improve noise immunity |
| GND (Pins 4, 5, 10, 15, 21, 23, 28, 34, 39, 44) | Ground Reference | 10 dedicated GND pins minimize ground bounce and ensure stable switching thresholds |
Key Features
| Feature | Design Value |
|---|---|
| No parasitic diode to VCC | Enables safe power-off isolation and prevents backfeeding into powered subsystems |
| Rail-to-rail 0–5V switching | Supports analog and digital signals across full 5V range without clipping or distortion |
| Undershoot clamp diodes | Protects all switch and control inputs against –3V undershoot transients per JEDEC standards |
| Flat RON vs. VIN | Maintains consistent signal attenuation across input voltage swing - critical for analog multiplexing |
| High OFF-state impedance | <±1μA leakage at 0–5V - ensures signal integrity between unpowered and active system domains |
Applications
| Hot-Swappable Card Interface | Fast Ethernet LAN Switching |
|---|---|
Use Scenario: Plugging/unplugging line cards in live telecom or enterprise switches without system reset. IC Role / Device Role / Timing Role: Bidirectional signal bridge isolating card-side and backplane-side logic domains during insertion/removal. Use Value: Eliminates mechanical relays and enables zero-downtime maintenance via controlled ON/OFF switching with 5V-tolerant I/Os. | Use Scenario: Data path switching in 10/100BASE-TX Ethernet PHY-to-MAC interfaces. IC Role / Device Role / Timing Role: Low-latency, low-distortion bus switch routing differential pairs and control signals between PHY and MAC layers. Use Value: Delivers <0.2ns propagation delay and 500MHz bandwidth to meet IEEE 802.3 timing budgets without skew compensation. |
| Analog Signal Multiplexing | ATM Cell Switching |
Use Scenario: Routing multiple sensor or audio channels to shared ADC/DAC resources in industrial DAQ systems. IC Role / Device Role / Timing Role: Rail-to-rail analog switch with flat RON and low 4pF OFF capacitance preserving signal fidelity. Use Value: Enables low THD (<–80dB) and minimal crosstalk in multi-channel analog front-ends up to 100kHz. | Use Scenario: High-speed cell header and payload routing in ATM 25/155 Mbps core switches. IC Role / Device Role / Timing Role: Low-jitter, bidirectional data path switch synchronizing with ATM clock domains. Use Value: Supports deterministic 155.52Mbps line rates with sub-250ps delay variation across all 16 lanes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT16244DGGR | Higher RON (6Ω typ.), 3.3V-only VCC, no 5V tolerance on I/Os | Not suitable for mixed-voltage or hot-swap systems requiring 5V-tolerant isolation | Select only for cost-sensitive 3.3V-only designs where 5V tolerance is unnecessary |
| PI3CHD3244ZHE | Lower bandwidth (350MHz), higher I/O capacitance (6pF OFF), same TSSOP-48 footprint | Marginally adequate for 100BASE-TX but not recommended for 155Mbps ATM or precision analog | Consider only if QS3VH16244PAG8 is unavailable and bandwidth margin >150MHz is acceptable |
Compared with SN74CBT16244DGGR and PI3CHD3244ZHE, the QS3VH16244PAG8 delivers superior 5V tolerance, lower RON, and higher bandwidth - making it the preferred choice for industrial hot-swap, Fast Ethernet, and ATM switching where signal integrity and voltage interoperability are critical.
Availability
QS3VH16244PAG8 is available at Aetrix Electronics and suitable for industrial networking infrastructure, telecom line-card interfaces, and high-reliability embedded data acquisition systems requiring stable component supply across extended lifecycle commitments.
Supply support for QS3VH16244PAG8 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 applications.
The QS3VH16244PAG8 belongs to Renesas' QuickSwitch® bus switch family, engineered specifically for high-bandwidth, low-latency signal routing in hot-pluggable and mixed-voltage systems.
FAQ
What is the maximum operating frequency of the QS3VH16244PAG8 control input (xG)?
The QS3VH16244PAG8 supports up to 20MHz toggle frequency on the xG enable input when VCC = 3.3V, as specified in the switching characteristics table. This allows rapid switching of all 16 channels in burst-mode or dynamic reconfiguration scenarios without violating timing margins. The QS3VH16244PAG8 achieves this using low-capacitance control inputs and optimized internal drive strength.
Does the QS3VH16244PAG8 require external pull-up or pull-down resistors on its xG inputs?
No, the QS3VH16244PAG8 xG inputs are LVTTL-compatible with defined VIH/VIL thresholds and do not require external biasing. Input leakage current is ±1μA max, ensuring reliable logic levels with standard CMOS drivers. The QS3VH16244PAG8 operates correctly with direct connection to FPGA or ASIC GPIO outputs without additional passive components.
Can the QS3VH16244PAG8 be used to switch analog signals such as audio or sensor outputs?
Yes, the QS3VH16244PAG8 supports rail-to-rail 0–5V analog switching with flat RON vs. input voltage and low 4pF OFF-state capacitance - making it suitable for audio multiplexing, thermocouple routing, and other low-distortion analog applications. The QS3VH16244PAG8 maintains signal integrity up to 100kHz with minimal THD and crosstalk.
What is the thermal performance of the QS3VH16244PAG8 in continuous operation?
The QS3VH16244PAG8 is characterized for operation from –40°C to +85°C with quiescent supply current of 1.5–3mA and dynamic current scaling linearly with enable frequency. Its TSSOP-48 package provides sufficient thermal dissipation for typical 16-channel switching loads; junction temperature remains within spec under 120mA per pin max output current limits. The QS3VH16244PAG8 does not require heatsinking in standard industrial airflow environments.
Is the QS3VH16244PAG8 pin-compatible with earlier IDT QS3VH16244 variants?
Yes, the QS3VH16244PAG8 shares identical pinout, electrical specifications, and functional behavior with all IDT-branded QS3VH16244 devices in TSSOP-48 packaging, including legacy part numbers like QS3VH16244PAG. The "8" suffix denotes tape-and-reel packaging but does not affect device functionality or pin assignment. The QS3VH16244PAG8 is a direct replacement for prior IDT versions.
QS3VH16244PAG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 3VH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Bus Switch
- Circuit:
- 4 x 1:1
- Independent Circuits:
- 4
- 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-TSSOP
QS3VH16244PAG8 FAQ
1.How can I place an order for QS3VH16244PAG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for QS3VH16244PAG8 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 QS3VH16244PAG8 reliable?
The price and inventory of QS3VH16244PAG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS3VH16244PAG8 is usually 5 days.
3.What payment methods are accepted for QS3VH16244PAG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS3VH16244PAG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS3VH16244PAG8?
QS3VH16244PAG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS3VH16244PAG8 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 QS3VH16244PAG8?
For technical support, including QS3VH16244PAG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS3VH16244PAG8 requirements.
6.How does Aetrix verify that QS3VH16244PAG8 is sourced from the original manufacturer or authorized distributors?
All QS3VH16244PAG8 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 QS3VH16244PAG8 meets industry standards.
7.What is the process for return or replacement of QS3VH16244PAG8?
All QS3VH16244PAG8 units undergo pre-shipment inspection (PSI). If there is an issue with QS3VH16244PAG8, 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 QS3VH16244PAG8 part is unused and in its original packaging.
Return procedure for QS3VH16244PAG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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