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Renesas IDTQS3VH800PAG
- Part No.:
- IDTQS3VH800PAG
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
IDTQS3VH800PAG.pdf
- Description:
- IC BUS SWITCH 10 X 1:1 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,653
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Product details
Overview
IDTQS3VH800PAG from Renesas Electronics (formerly IDT) is a 10-bit, high-bandwidth bus switch with precharged B-port outputs, designed for hot-swap and live-insertion applications. It operates at 2.3V–3.6V VCC, delivers <250ps propagation delay, 4Ω typical ON resistance, 500MHz bandwidth, and supports rail-to-rail 0–5V signal switching with LVTTL-compatible OE control.
For engineers reviewing the IDTQS3VH800PAG datasheet, IDTQS3VH800PAG pinout, IDTQS3VH800PAG application, or IDTQS3VH800PAG equivalent, key selection criteria include its 5V-tolerant I/Os in both ON/OFF states, user-selectable VBIAS for noise suppression, bidirectional zero-delay data flow, and industrial temperature range (–40°C to +85°C) operation.
Technical Context
The IDTQS3VH800PAG 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 precharge architecture applies a user-defined bias voltage (VBIAS) to B0–B9 outputs to suppress live-insertion transients.
It features flat RON over voltage/temperature, excellent channel-to-channel RON matching, and undershoot clamp diodes on all switch and control inputs. The device supports bidirectional signal routing with no added ground bounce and tolerates up to 5.5V on data terminals regardless of VCC state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - Enables interoperability with 2.5V and 3.3V logic systems without level shifters |
| RON (Typ.) | 4Ω at VCC = 3V - Ensures minimal signal attenuation and distortion for high-speed digital/analog signals |
| Propagation Delay | <250ps - Delivers near-zero latency for time-critical interconnects like Ethernet PHY interfaces |
| Bandwidth | Up to 500MHz - Supports Fast Ethernet (100BASE-TX) and ATM 25/155 physical layer switching |
| I/O Voltage Tolerance | –0.5V to +5.5V - Allows safe interfacing with 5V legacy peripherals while powered from 3.3V supply |
| Input Capacitance (CI/O) | 4pF (OFF), 8–12pF (ON) - Minimizes loading on driving sources and preserves signal integrity at high frequencies |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded networking and telecom equipment |
Pinout & Package
Package: 24-pin QSOP (IDTQS3VH800PAG suffix denotes QSOP). Pin count and layout match industry-standard 24-lead QSOP footprint (0.150" body width).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OE | Control Input | Active-low enable: drives A↔B path when LOW; places A/B ports in high-Z when HIGH |
| VBIAS | Bias Reference Input | User-configurable voltage (0–5V) applied to precharge B0–B9 outputs, reducing insertion noise |
| A0–A9 | Switch Terminal (I/O) | 10-bit bidirectional data port connected through low-RON FETs when OE is active |
| B0–B9 | Switch Terminal (I/O) | 10-bit bidirectional data port precharged to VBIAS; electrically isolated when OE is inactive |
| VCC | Power Supply | Core logic and switch bias supply (2.3–3.6V); powers internal clamp diodes and control circuitry |
| GND | Ground Reference | Common return for VCC, control signals, and switch current paths; critical for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| N-channel FET switches without parasitic diode to VCC | Enables full power-off isolation: no DC leakage path between A/B ports or to VCC/GND |
| 5V-tolerant I/Os in ON/OFF states | Permits mixed-voltage system integration (e.g., 3.3V logic controlling 5V backplane signals) |
| B-port precharge to user-selectable VBIAS | Reduces transient noise during hot-plug events by holding B-side outputs at stable DC bias |
| Rail-to-rail 0–5V analog/digital switching | Supports both digital bus extension and low-distortion analog signal routing (e.g., audio, sensor lines) |
| Undershoot clamp diodes on all I/O and control pins | Protects against negative transients down to –3V (pulse width ≤20ns), enhancing system robustness |
Applications
| Hot-Swappable Module Interface | Fast Ethernet LAN Switching |
|---|---|
Use Scenario: Inserting/removing line cards or daughterboards into live telecom or enterprise network chassis without system reset. IC Role / Device Role / Timing Role: Bidirectional bus switch isolating A-side (backplane) from B-side (card edge connector), with VBIAS suppressing insertion spikes. Use Value: Eliminates need for mechanical relays or complex sequencing; enables zero-downtime maintenance per IEEE 802.3ab requirements. | Use Scenario: Interfacing MAC-layer logic (3.3V) to PHY transceivers (5V-tolerant) in 100BASE-TX switch fabric. IC Role / Device Role / Timing Role: High-bandwidth, low-latency signal bridge between CPU/RAM bus and twisted-pair PHY interface. Use Value: Maintains signal integrity at 100Mbps with <250ps delay and 500MHz bandwidth; avoids ground bounce in bidirectional data lanes. |
| Analog Signal Multiplexing | Legacy System Voltage Translation |
Use Scenario: Routing multiple sensor or audio channels through shared ADC/DAC paths in industrial PLCs or test equipment. IC Role / Device Role / Timing Role: Low-distortion analog switch with flat RON and 4pF OFF-state capacitance minimizing crosstalk. Use Value: Preserves signal fidelity across 0–5V range; eliminates harmonic distortion from nonlinear RON vs. VIN variation. | Use Scenario: Connecting modern 3.3V microcontrollers to legacy 5V peripheral buses (e.g., ISA, parallel port) without external level shifters. IC Role / Device Role / Timing Role: Voltage-agnostic bidirectional buffer enabling seamless protocol-level compatibility. Use Value: Reduces BOM count and PCB area versus discrete MOSFET solutions; supports 5V signaling while powered from 3.3V rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT16210DGGR | 16-bit, 3.3V-only VCC range (2.7–3.6V); no VBIAS pin; 6Ω typical RON | Lacks precharge functionality; unsuitable for hot-swap noise-sensitive use cases | Select when higher channel count is needed and live-insertion noise is not a concern |
| PI3CHD1012LEX | 10-bit, 2.5V/3.3V operation; includes VBIAS but specifies 6Ω RON and 350ps max tPD | Higher propagation delay and ON resistance reduce bandwidth margin for 100Mbps+ links | Choose where lower cost is prioritized over maximum signal fidelity in Ethernet PHY paths |
Compared with SN74CBT16210DGGR and PI3CHD1012LEX, the IDTQS3VH800PAG uniquely combines VBIAS-controlled precharge, sub-250ps delay, and 4Ω RON-making it optimal for industrial hot-swap and Fast Ethernet interconnects where signal integrity and insertion noise are critical.
Availability
IDTQS3VH800PAG is available at Aetrix Electronics and suitable for hot-swappable module interfaces, Fast Ethernet LAN switching, analog multiplexing, and legacy voltage translation requiring stable component supply across industrial temperature ranges.
Supply support for IDTQS3VH800PAG 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 IDTQS3VH800PAG belongs to Renesas' QuickSwitch® bus switch product line, engineered specifically for high-reliability hot-plug, live-insertion, and high-speed interconnect applications in telecom, networking, and industrial control systems.
FAQ
What is the maximum operating frequency supported by the IDTQS3VH800PAG?
The IDTQS3VH800PAG supports an enable toggle frequency up to 20MHz under 3.3V operation, and its 500MHz small-signal bandwidth ensures integrity for Fast Ethernet (100BASE-TX) and ATM 25/155 data streams. Propagation delay remains below 250ps, making it suitable for timing-critical interconnects where latency must be minimized.
Does the IDTQS3VH800PAG require external pull-up or pull-down resistors on the OE pin?
No, the IDTQS3VH800PAG OE input is LVTTL-compatible with defined VIH (≥2.0V at VCC ≥2.7V) and VIL (≤0.8V) thresholds, and has ±1µA input leakage current. External biasing is unnecessary unless system-level noise immunity requires stronger drive-standard CMOS or FPGA GPIO outputs suffice for direct control.
Can the IDTQS3VH800PAG safely interface 5V signals while powered from a 3.3V supply?
Yes-the IDTQS3VH800PAG guarantees 5V tolerance on all A/B port and control pins regardless of VCC state (–0.5V to +5.5V absolute max), and operates correctly with VCC = 2.3–3.6V. This allows direct connection to 5V peripherals without level shifters, provided VBIAS is set within its 0–5V range and load conditions remain within IOUT limits.
How does the VBIAS pin function in the IDTQS3VH800PAG, and what voltage should it be set to?
The VBIAS pin sets the precharge voltage for B0–B9 outputs to suppress live-insertion noise. It accepts 0–5V (typical values: 0V, 2.4V, or 3V). When open, internal bias defaults to ~2.4V. For lowest noise in hot-swap, tie VBIAS to a clean 2.4V reference; for logic-level alignment, match it to the B-side receiver's VIL/VIH thresholds.
Is the IDTQS3VH800PAG pin-compatible with other QuickSwitch devices like the IDTQS3VH245?
No-the IDTQS3VH800PAG is a 24-pin 10-bit switch with dedicated VBIAS and dual 10-bit buses (A0–A9, B0–B9), whereas the IDTQS3VH245 is an 8-bit non-inverting bus transceiver in 20-pin TSSOP. Pin count, signal assignment, and functional architecture differ; PCB layout and firmware initialization must be redesigned for substitution.
IDTQS3VH800PAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 3VH
- Package/Case:
- 24-TSSOP (0.173", 4.40mm 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-TSSOP
IDTQS3VH800PAG FAQ
1.How can I place an order for IDTQS3VH800PAG through Aetrix?
Please submit a Request for Quotation (RFQ) for IDTQS3VH800PAG 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 IDTQS3VH800PAG reliable?
The price and inventory of IDTQS3VH800PAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDTQS3VH800PAG is usually 5 days.
3.What payment methods are accepted for IDTQS3VH800PAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDTQS3VH800PAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDTQS3VH800PAG?
IDTQS3VH800PAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDTQS3VH800PAG 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 IDTQS3VH800PAG?
For technical support, including IDTQS3VH800PAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDTQS3VH800PAG requirements.
6.How does Aetrix verify that IDTQS3VH800PAG is sourced from the original manufacturer or authorized distributors?
All IDTQS3VH800PAG 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 IDTQS3VH800PAG meets industry standards.
7.What is the process for return or replacement of IDTQS3VH800PAG?
All IDTQS3VH800PAG units undergo pre-shipment inspection (PSI). If there is an issue with IDTQS3VH800PAG, 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 IDTQS3VH800PAG part is unused and in its original packaging.
Return procedure for IDTQS3VH800PAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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