My Inquiry
My Account
Renesas QS3VH16211PAG
- Part No.:
- QS3VH16211PAG
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
QS3VH16211PAG.pdf
- Description:
- IC BUS SWITCH 12 X 1:1 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:242
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
QS3VH16211PAG from Renesas Electronics (formerly IDT) is a 24-bit bidirectional bus switch IC with dual independent 12-bit channels, operating at 2.3V–3.6V supply, featuring 4Ω typical ON resistance, <0.2ns propagation delay, and 5V-tolerant I/Os. It serves as a high-bandwidth signal path selector in hot-swap-capable backplane and Ethernet switching systems.
For engineers reviewing the QS3VH16211PAG datasheet, QS3VH16211PAG pinout, QS3VH16211PAG application, or QS3VH16211PAG equivalent, key selection criteria include rail-to-rail analog/digital switching capability, sub-1ns enable/disable timing, 500MHz bandwidth, industrial temperature support (–40°C to +85°C), and TSSOP-56 package compatibility with high-density PCB layouts.
Technical Context
The QS3VH16211PAG implements two independent N-channel FET-based 12-bit bus switches (1A/1B and 2A/2B), each controlled by dedicated OE inputs (1OE, 2OE). Its architecture eliminates parasitic diodes to VCC, enabling true power-off isolation and 5V tolerance regardless of VCC state.
Switching behavior is strictly level-sensitive and bidirectional: low OE connects corresponding A/B pairs with near-zero propagation delay; high OE places both sides in high-impedance state. Control inputs are LVTTL-compatible, and all I/O pins integrate undershoot clamp diodes for robust ESD protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3V–3.6V - supports mixed 2.5V/3.3V system interfacing without level shifters |
| ON Resistance (RON) | 4Ω typical at VCC = 3V - enables low-loss signal transmission up to 500MHz |
| Propagation Delay (tPLH/tPHL) | <0.2ns - adds negligible timing skew in high-speed parallel bus paths |
| Enable/Disable Time (tPZH/tPHZ) | 1.5ns–9ns - ensures fast channel arbitration for hot-swap and dynamic reconfiguration |
| I/O Capacitance (CI/O) | 4pF (OFF), 8pF (ON) - minimizes loading on source and load circuits |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and networking equipment |
| Input Voltage Tolerance | –0.5V to 5.5V - allows safe interfacing with 5V logic or analog signals while powered from 3.3V |
Pinout & Package
TSSOP-56 (Thin Shrink Small Outline Package, Green, RoHS-compliant) with 0.5mm pitch; thermally enhanced layout supporting high-density routing and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A12, 2A1–2A12 | Switch Input/Output Group A / Group B | Bidirectional data terminals - no fixed direction; connected to corresponding B or A pins when OE active |
| 1B1–1B12, 2B1–2B12 | Switch Input/Output Group A / Group B | Mirror terminals to A-side; electrically identical and interchangeable per channel pair |
| 1OE, 2OE | Channel Enable Input | Active-low control - asserts low-impedance path between respective A/B banks; high = Hi-Z isolation |
| VCC | Power Supply | 2.3V–3.6V core supply; powers internal logic and gate drive - not connected to signal path |
| GND (Pins 3, 11, 20, 28, 37, 46) | Ground Reference | Multiple distributed GND pins reduce ground bounce and improve noise immunity across 24-bit bus |
Key Features
| Feature | Design Value |
|---|---|
| No parasitic diode to VCC | Enables true power-off isolation - prevents backfeeding and latch-up during hot insertion |
| Rail-to-rail switching (0–5V) | Supports full-swing analog signals and mixed-voltage digital buses without clipping or distortion |
| 5V-tolerant I/O in ON/OFF states | Eliminates need for external voltage translators when interfacing legacy 5V peripherals |
| Low I/O capacitance (4pF typical) | Preserves signal integrity and rise/fall times in >100Mbps parallel interfaces |
| Excellent RON matching across channels | Ensures uniform timing and amplitude response across all 24 bits - critical for parallel bus skew control |
Applications
| Hot-Swappable Backplane Interface | Ethernet LAN Switch Fabric |
|---|---|
Use Scenario: Insertion/removal of line cards in carrier-grade telecom chassis without powering down the system. IC Role / Device Role / Timing Role: Bidirectional bus switch isolating card-side data lines from backplane during insertion; enables zero-downtime maintenance. Use Value: Prevents bus contention and voltage transients using 5V-tolerant Hi-Z state and sub-1ns disable timing. |
Use Scenario: High-speed interconnection between MAC and PHY layers in 10/100BASE-TX switch ASICs. IC Role / Device Role / Timing Role: Signal path selector routing parallel MII/RMII data between multiple PHY ports and shared MAC resources. Use Value: Delivers <0.2ns propagation delay and 4Ω RON to maintain signal fidelity at 25MHz–50MHz clock rates. |
| Wide Digital Bus Multiplexing | Analog Signal Routing (Low-Distortion) |
Use Scenario: Dynamic allocation of shared memory or peripheral address/data buses among multiple controllers in industrial PLCs. IC Role / Device Role / Timing Role: 24-bit wide multiplexer enabling time-shared access to common bus infrastructure under software control. Use Value: Flat RON vs. VIN curve and excellent channel matching minimize bit-to-bit skew and voltage drop across full bus width. |
Use Scenario: Programmable gain/attenuation path or signal routing in test equipment front-ends and audio routing matrices. IC Role / Device Role / Timing Role: Low-distortion analog switch handling DC–500MHz signals with minimal harmonic generation or crosstalk. Use Value: 4pF OFF-state capacitance and absence of body diodes prevent signal rectification and DC offset injection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT16211DGGR | Same 24-bit dual-bank architecture, but rated only to 3.6V supply; 5V tolerance limited to 3.6V max input | Not suitable for mixed 3.3V/5V systems requiring full 5V signal pass-through during VCC=3.3V operation | Select QS3VH16211PAG where 5V-tolerant I/O is required under all operating conditions |
| PI3CH480E | 12-bit single bank, lower RON (2.5Ω), but lacks dual independent OE control and industrial temp range | Requires two devices to match 24-bit width; no native support for independent channel enable in same package | Choose QS3VH16211PAG when dual 12-bit channel control and –40°C to +85°C operation are mandatory |
Compared with SN74CBT16211DGGR and PI3CH480E, the QS3VH16211PAG uniquely combines dual independent 12-bit switching, guaranteed 5V tolerance across all states, industrial temperature rating, and sub-0.2ns propagation delay - making it the only option for high-reliability hot-swap and mixed-voltage Ethernet fabric designs.
Availability
QS3VH16211PAG is available at Aetrix Electronics and suitable for hot-swappable backplane interfaces, Ethernet LAN switch fabrics, wide digital bus multiplexing, and low-distortion analog signal routing requiring stable component supply across extended lifecycle programs.
Supply support for QS3VH16211PAG 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 QS3VH16211PAG belongs to Renesas' QuickSwitch® family of high-bandwidth bus switches, engineered specifically for zero-delay, 5V-tolerant signal routing in hot-swap-capable networking and industrial control systems.
FAQ
What is the maximum signal frequency supported by the QS3VH16211PAG?
The QS3VH16211PAG supports up to 500MHz bandwidth due to its low 4Ω typical ON resistance and 4pF OFF-state capacitance. This enables clean transmission of fast digital edges and RF-modulated analog signals without significant attenuation or phase distortion. The QS3VH16211PAG achieves this performance across its full industrial temperature range and supply voltage window (2.3V–3.6V).
Does the QS3VH16211PAG require external pull-up or pull-down resistors on its OE pins?
No, the QS3VH16211PAG OE inputs are LVTTL-compatible with defined VIH (≥2.0V at VCC ≥2.7V) and VIL (≤0.8V) thresholds and feature low input leakage (±1μA). External biasing is unnecessary unless system-level noise immunity requirements exceed standard LVTTL margins. The QS3VH16211PAG operates reliably with direct FPGA or ASIC GPIO drive.
Can the QS3VH16211PAG safely interface 5V signals while powered from a 3.3V supply?
Yes - the QS3VH16211PAG guarantees 5V tolerance on all I/O pins (A/B and OE) in both ON and OFF states, even when VCC = 3.3V. This is enabled by its N-channel FET structure with no parasitic diode to VCC. The QS3VH16211PAG maintains Hi-Z isolation and withstands –0.5V to 5.5V DC input voltage without damage or leakage.
What is the thermal performance of the QS3VH16211PAG in continuous operation?
The QS3VH16211PAG dissipates minimal power: quiescent ICCQ is 1.5mA typical at max VCC, and dynamic current scales linearly with enable toggle frequency (≤30μA per OE input). Its TSSOP-56 package provides adequate thermal dissipation for ambient temperatures up to +85°C with standard PCB copper area; no heatsink is required under typical 24-bit bus switching loads.
How does the QS3VH16211PAG handle power sequencing during hot-swap events?
The QS3VH16211PAG provides inherent power-sequence resilience: when VCC = 0V, IOFF leakage remains ≤±1μA, and all I/Os present high impedance with no DC path to VCC or GND. This prevents backfeeding and bus contention during staggered power-up. The QS3VH16211PAG's architecture ensures safe operation regardless of whether VCC, signal, or control lines are applied first.
QS3VH16211PAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 3VH
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- 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
QS3VH16211PAG FAQ
1.How can I place an order for QS3VH16211PAG through Aetrix?
Please submit a Request for Quotation (RFQ) for QS3VH16211PAG 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 QS3VH16211PAG reliable?
The price and inventory of QS3VH16211PAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS3VH16211PAG is usually 5 days.
3.What payment methods are accepted for QS3VH16211PAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS3VH16211PAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS3VH16211PAG?
QS3VH16211PAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS3VH16211PAG 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 QS3VH16211PAG?
For technical support, including QS3VH16211PAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS3VH16211PAG requirements.
6.How does Aetrix verify that QS3VH16211PAG is sourced from the original manufacturer or authorized distributors?
All QS3VH16211PAG 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 QS3VH16211PAG meets industry standards.
7.What is the process for return or replacement of QS3VH16211PAG?
All QS3VH16211PAG units undergo pre-shipment inspection (PSI). If there is an issue with QS3VH16211PAG, 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 QS3VH16211PAG part is unused and in its original packaging.
Return procedure for QS3VH16211PAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
QS3VH16211PAG Tags
-
SN74HC138DR
Texas Instruments
-
TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
-
74CBTLV3257PW,118
Nexperia USA Inc.
-
SN74CBTLV3257PWR
Texas Instruments
-
74CBTLV3257GUX
Nexperia USA Inc.
-
74HC154BQ,118
Nexperia USA Inc.
-
P3S0200GMX
NXP USA Inc.
-
SN74CB3Q3245PWR
Texas Instruments
-
SN74CB3Q3257RGYR
Texas Instruments
-
TCA9543APWR
Texas Instruments
-
TCA9546APWR
Texas Instruments
-
SN74HC138N
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
