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Renesas QS3VH16244PAG
- Part No.:
- QS3VH16244PAG
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
QS3VH16244PAG.pdf
- Description:
- IC BUS SWITCH 4 X 1:1 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:273
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Product details
Overview
QS3VH16244PAG from Renesas Electronics (formerly IDT) is a 16-bit bidirectional bus switch IC with LVTTL-compatible enable control, 4 Ω typical ON resistance, <0.2 ns propagation delay, 5 V tolerance in both ON/OFF states, and rail-to-rail 0–5 V switching capability - deployed in hot-swap Ethernet LAN switches and high-speed communications backplanes.
For engineers reviewing the QS3VH16244PAG datasheet, QS3VH16244PAG pinout, QS3VH16244PAG application, or QS3VH16244PAG equivalent, key selection criteria include 2.3–3.6 V VCC operation, 4 pF typical I/O capacitance, -40°C to +85°C industrial temperature range, and TSSOP-48 package compatibility with high-bandwidth signal integrity requirements.
Technical Context
The QS3VH16244PAG implements 16 independent N-channel FET switches without parasitic diodes to VCC, enabling true isolation under power-off conditions and eliminating DC paths to VCC or GND. Its architecture supports bidirectional data flow with near-zero added delay and no ground bounce.
Each switch exhibits flat RON over voltage and temperature, matched channel characteristics, and undershoot clamp diodes on all I/O and control pins. It operates across 2.3–3.6 V supply while maintaining 5 V tolerance on all data terminals regardless of VCC state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - supports dual-supply 2.5 V/3.3 V logic domains without level shifters |
| RON (Typ.) | 4 Ω at VCC = 3 V - enables low-loss signal routing for high-speed digital and analog signals |
| Propagation Delay | <0.2 ns - adds negligible timing budget impact in 100+ Mbps serial or parallel buses |
| I/O Capacitance | 4 pF (OFF), 8 pF (ON) - minimizes loading on driving sources and preserves signal edge rates |
| Temperature Range | -40°C to +85°C - qualified for industrial-grade embedded and networking equipment |
| Bandwidth | Up to 500 MHz - supports Fast Ethernet (100BASE-TX), ATM 25/155, and low-distortion analog switching |
| 5 V Tolerance | Yes on all I/Os in ON/OFF states - allows safe interfacing with legacy 5 V peripherals or mixed-voltage systems |
Pinout & Package
TSSOP-48 package with 0.5 mm pitch, thermally enhanced exposed pad (not electrically connected), JEDEC MO-153 compliant, RoHS-compliant "Green" finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1G, 2G, 3G, 4G | Group Enable Inputs | Active-low LVTTL-compatible controls for four 4-bit switch groups (16 total channels) |
| 1A1–1A4, 1Y1–1Y4, etc. | Bidirectional Data I/O Pairs | Each A/Y pair forms one switch channel; no directionality - signal flows either way when enabled |
| VCC (Pins 7, 11, 18, 29, 31) | Power Supply | Single 2.3–3.6 V supply powers all logic and switch circuitry; multiple pins reduce IR drop |
| GND (Pins 4, 5, 10, 15, 16, 21, 23, 27, 34, 35, 42, 44) | Ground Reference | 12 dedicated GND pins minimize ground bounce and improve noise immunity in high-speed switching |
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 0–5 V switching | Supports full-swing analog signals (e.g., video, audio) and mixed-voltage digital interfaces |
| Undershoot clamp diodes | Protects inputs from negative transients down to -3 V, critical in noisy industrial environments |
| High OFF impedance (>10⁹ Ω) | Prevents signal coupling between unpowered and active subsystems in modular systems |
| RON matching <10% | Ensures consistent timing skew across all 16 channels - essential for parallel bus integrity |
Applications
| Hot-Swappable Module Interface | Fast Ethernet LAN Switching |
|---|---|
Use Scenario: Insertion/removal of line cards in carrier-grade routers without system reset or service interruption. IC Role / Device Role / Timing Role: Bidirectional bus switch isolating CPU/memory bus from pluggable card I/O during insertion and removal. Use Value: Enables zero-downtime maintenance via controlled signal isolation and 5 V-tolerant I/O handling live backplane voltages. | Use Scenario: Signal routing between PHY and MAC layers in 10/100BASE-TX Ethernet switches. IC Role / Device Role / Timing Role: Low-latency, low-capacitance path for differential Manchester-encoded data with minimal jitter addition. Use Value: Maintains signal integrity at 100 Mbps with <0.2 ns propagation delay and 4 pF I/O capacitance. |
| Analog Signal Multiplexing | ATM Cell Switching |
Use Scenario: Channel selection in multi-input sensor signal conditioning circuits requiring low THD and flat frequency response. IC Role / Device Role / Timing Role: Rail-to-rail analog switch replacing mechanical relays in programmable gain amplifiers or filter banks. Use Value: Delivers <0.01% distortion up to 500 MHz due to 4 Ω RON and symmetric ON-resistance profile. | Use Scenario: Time-division multiplexing of ATM cells across OC-3 (155 Mbps) and OC-1 (51 Mbps) optical interfaces. IC Role / Device Role / Timing Role: High-bandwidth, low-skew data path for cell header and payload routing in telecom access equipment. Use Value: Supports 155 Mbps line rates with matched propagation delay across all 16 lanes and no added ground bounce. |
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 (6 Ω typ.), wider VCC range (4.5–5.5 V), no 5 V tolerance on I/Os when VCC = 3.3 V | Requires external clamping for 5 V signals; suited for 5 V-only systems | Select when operating exclusively at 5 V and lower cost is prioritized over 5 V tolerance |
| PI3CH480ELEX | Lower bandwidth (300 MHz), higher I/O capacitance (6 pF OFF), same TSSOP-48 footprint | Marginally lower signal fidelity at >100 Mbps; suitable for cost-sensitive industrial I/O expansion | Select when 300 MHz bandwidth suffices and Renesas supply continuity is constrained |
Compared with SN74CBT16244DGGR and PI3CH480ELEX, the QS3VH16244PAG uniquely combines 5 V I/O tolerance at 3.3 V VCC, sub-0.2 ns delay, and 4 pF capacitance - making it optimal for mixed-voltage hot-swap and high-fidelity Ethernet applications where signal integrity and robustness are non-negotiable.
Availability
QS3VH16244PAG is available at Aetrix Electronics and suitable for industrial networking equipment, hot-swappable server modules, and high-speed communications backplanes requiring stable component supply and long-term lifecycle support.
Supply support for QS3VH16244PAG 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 QS3VH16244PAG belongs to Renesas' QuickSwitch® bus switch family, engineered specifically for high-bandwidth, low-distortion signal routing in hot-swap-capable systems and mixed-voltage communication interfaces.
FAQ
What is the maximum operating frequency supported by the QS3VH16244PAG?
The QS3VH16244PAG supports an xG control input toggle frequency up to 20 MHz at VCC = 3.3 V. Its 500 MHz small-signal bandwidth and sub-0.2 ns propagation delay make it suitable for Fast Ethernet (100BASE-TX), ATM 155, and other high-speed digital protocols - though actual system-level frequency depends on load capacitance and driver strength.
Does the QS3VH16244PAG require external level-shifting when interfacing with 5 V peripherals?
No, the QS3VH16244PAG does not require external level-shifting. All I/O pins are 5 V tolerant in both ON and OFF states, even when VCC is supplied at 2.5 V or 3.3 V. This allows direct connection to 5 V logic or analog sources without risk of damage or signal corruption.
How many independent switch groups does the QS3VH16244PAG provide?
The QS3VH16244PAG provides four independent 4-bit switch groups (16 total channels), each controlled by its own active-low enable input: 1G controls channels 1A1–1Y4, 2G controls 2A1–2Y4, 3G controls 3A1–3Y4, and 4G controls 4A1–4Y4 - enabling granular power-domain isolation.
What is the typical ON-resistance variation across temperature and voltage for the QS3VH16244PAG?
The QS3VH16244PAG exhibits flat RON characteristics: typical ON resistance remains within ±15% across the full -40°C to +85°C range and 2.3–3.6 V VCC. At VCC = 3.3 V and VIN = 2.4 V, RON is 5 Ω (typ.), rising to 9 Ω (max) - ensuring predictable signal loss in precision analog or high-speed digital paths.
Is the QS3VH16244PAG pin-compatible with earlier IDT bus switches like the QS3VH16245?
No, the QS3VH16244PAG is not pin-compatible with the QS3VH16245. While both are TSSOP-48 bus switches, the QS3VH16245 features different pin assignments (e.g., inverted enable logic, different grouping), and the QS3VH16244PAG uses active-low group enables (1G–4G) with dedicated A/Y pairs per group - requiring PCB layout revision for substitution.
QS3VH16244PAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 3VH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- 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
QS3VH16244PAG FAQ
1.How can I place an order for QS3VH16244PAG through Aetrix?
Please submit a Request for Quotation (RFQ) for QS3VH16244PAG 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 QS3VH16244PAG reliable?
The price and inventory of QS3VH16244PAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS3VH16244PAG is usually 5 days.
3.What payment methods are accepted for QS3VH16244PAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS3VH16244PAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS3VH16244PAG?
QS3VH16244PAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS3VH16244PAG 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 QS3VH16244PAG?
For technical support, including QS3VH16244PAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS3VH16244PAG requirements.
6.How does Aetrix verify that QS3VH16244PAG is sourced from the original manufacturer or authorized distributors?
All QS3VH16244PAG 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 QS3VH16244PAG meets industry standards.
7.What is the process for return or replacement of QS3VH16244PAG?
All QS3VH16244PAG units undergo pre-shipment inspection (PSI). If there is an issue with QS3VH16244PAG, 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 QS3VH16244PAG part is unused and in its original packaging.
Return procedure for QS3VH16244PAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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