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Renesas IDTQS3VH800QG8
- Part No.:
- IDTQS3VH800QG8
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
IDTQS3VH800QG8.pdf
- Description:
- IC BUS SWITCH 10 X 1:1 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,814
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Product details
Overview
IDTQS3VH800QG8 from Renesas Electronics (formerly IDT) is a 10-bit, LVTTL-compatible bus switch with precharged B-port outputs, operating at 2.3V–3.6V VCC and supporting rail-to-rail 0–5V signal switching. It delivers <250ps propagation delay, 4Ω typical ON resistance, 500MHz bandwidth, and 5V-tolerant I/Os - enabling high-speed hot-swap and Ethernet LAN switching in industrial systems.
For engineers reviewing the IDTQS3VH800QG8 datasheet, IDTQS3VH800QG8 pinout, IDTQS3VH800QG8 application, or IDTQS3VH800QG8 equivalent, key selection criteria include VBIAS-configurable precharge, bidirectional zero-delay data flow, -40°C to +85°C operation, and QSOP-24 package compatibility with live-insertion noise suppression.
Technical Context
The IDTQS3VH800QG8 implements N-channel FET switches without parasitic diodes to VCC, ensuring isolation during power-off and eliminating DC paths to VCC or GND. Its OE-controlled bidirectional switching supports 5V-tolerant signals in both ON and OFF states, with undershoot clamp diodes on all I/O and control pins.
Precharge functionality is enabled via user-selectable VBIAS (0–5V), minimizing live-insertion transients on the B port. Switching performance is characterized by flat RON over voltage/temperature, excellent channel-to-channel RON matching, and low 4pF typical I/O capacitance in OFF 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 domains |
| RON (Typ.) | 4Ω at VCC = 3V - ensures minimal signal attenuation and distortion for high-fidelity analog/digital switching |
| Propagation Delay | <0.2ns - contributes negligible timing overhead in high-speed serial or parallel bus paths |
| Bandwidth | Up to 500MHz - supports Fast Ethernet (100BASE-TX) and ATM 25/155 physical layer signaling |
| I/O Capacitance (OFF) | 4pF typical - reduces loading on driving sources and improves signal integrity in multi-drop configurations |
| VBIAS Range | 0V to 5V - allows precise bias point selection to suppress ground bounce during hot-plug events |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade embedded networking and telecom infrastructure |
Pinout & Package
Package: QSOP-24 (3.9mm width), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OE | Control Input | Active-low enable for all 10 channels; LVTTL-compatible, drives switch ON/OFF with no added ground bounce |
| VBIAS | Bias Reference Input | User-defined precharge voltage for B0–B9 outputs; sets noise-suppression threshold during live insertion |
| A0–A9 | Switch Input/Output | 10-bit bidirectional data path; connects to host-side logic (e.g., CPU, ASIC) when OE active |
| B0–B9 | Switch Input/Output | 10-bit bidirectional data path; precharged to VBIAS, interfaces to hot-swappable card or peripheral |
| VCC | Power Supply | 2.3V–3.6V core supply; powers internal logic and FET gate drive circuitry |
| GND | Ground Reference | Common return for VCC, control, and signal paths; critical for low-noise precharge stability |
Key Features
| Feature | Design Value |
|---|---|
| N-channel FET architecture with no parasitic diode to VCC | Enables true power-off isolation and eliminates unintended current paths during system standby or fault conditions |
| Rail-to-rail 0–5V switching capability | Supports mixed-voltage systems without level shifters - passes full-swing analog or digital signals across buses |
| Undershoot clamp diodes on all I/O and control pins | Protects against negative transient spikes down to -3V (20ns pulse), enhancing robustness in noisy industrial environments |
| Flat RON vs. input voltage | Maintains consistent signal integrity across entire 0–5V range - critical for low-distortion analog multiplexing |
| Low 4pF OFF-state I/O capacitance | Minimizes capacitive loading on upstream drivers, preserving edge rates and reducing EMI in high-frequency routing |
Applications
| Hot-Swappable Module Interface | Fast Ethernet LAN Switching |
|---|---|
Use Scenario: Inserting/removing network interface cards while system remains powered and operational. IC Role / Device Role / Timing Role: Bidirectional bus switch isolating A-side (backplane) from B-side (card), with VBIAS-precharged B-port suppressing insertion transients. Use Value: Enables zero-downtime maintenance in telecom and enterprise switches using IDTQS3VH800QG8's sub-0.2ns propagation delay and 5V-tolerant I/Os. | Use Scenario: Signal routing between MAC controller and PHY in 10/100BASE-TX Ethernet hardware. IC Role / Device Role / Timing Role: High-bandwidth, low-capacitance bridge between 3.3V logic and 5V-capable PHY interface, maintaining signal fidelity up to 500MHz. Use Value: IDTQS3VH800QG8 replaces mechanical relays with solid-state reliability while meeting IEEE 802.3 timing jitter budgets. |
| Analog Signal Multiplexing | ATM Cell Switching |
Use Scenario: Routing multiple sensor or audio channels into shared ADC or amplifier inputs without crosstalk or distortion. IC Role / Device Role / Timing Role: Low-RON, flat-resistance analog switch with rail-to-rail capability and 4pF OFF capacitance. Use Value: IDTQS3VH800QG8 delivers <0.05% THD+N in audio paths and preserves sensor signal SNR due to matched channel RON. | Use Scenario: Time-critical cell header routing in ATM 25/155 Mbps switching fabric. IC Role / Device Role / Timing Role: Low-latency, bidirectional data path with deterministic turn-on/turn-off times (1.5–8ns) and no added jitter. Use Value: IDTQS3VH800QG8 meets ATM layer-2 timing constraints with guaranteed tPZL/tPHZ ≤7.5ns at 3.3V, enabling deterministic cell forwarding. |
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 (3.0–3.6V); no VBIAS pin; higher RON (6Ω typ.) | Lacks precharge for hot-swap noise suppression; suited for fixed-board interconnect, not live insertion | Select when board-level signal routing dominates over field-service hot-swap requirements |
| PI3CHD3245LEX | 10-bit, 2.5V/3.3V compatible; includes auto-direction sensing; no VBIAS; 5.5Ω RON | Direction detection adds latency; no user-controlled precharge - less effective for controlled live-insertion noise management | Choose for bidirectional bus arbitration where direction changes dynamically, not for static hot-swap isolation |
Compared with SN74CBT16210DGGR and PI3CHD3245LEX, the IDTQS3VH800QG8 uniquely combines VBIAS-configurable precharge, sub-0.2ns propagation delay, and 5V tolerance - making it the only option among the three qualified for zero-downtime industrial hot-swap systems requiring live-card insertion noise control.
Availability
IDTQS3VH800QG8 is available at Aetrix Electronics and suitable for industrial networking equipment, hot-swappable telecom modules, and Ethernet LAN switches requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for IDTQS3VH800QG8 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.
IDTQS3VH800QG8 belongs to Renesas' legacy QuickSwitch® bus switch family, designed specifically for high-bandwidth, low-noise signal routing in hot-pluggable systems and communication infrastructure.
FAQ
What is the maximum signal voltage the IDTQS3VH800QG8 can pass in the ON state?
The IDTQS3VH800QG8 supports rail-to-rail switching from 0V to 5V in the ON state. Its 5V-tolerant I/O structure allows passing signals up to 5V regardless of VCC level (2.3V–3.6V), making it suitable for interfacing between mixed-voltage domains without external level shifters. This capability is confirmed in the Absolute Maximum Ratings table and functional description of the IDTQS3VH800QG8 datasheet.
Does the IDTQS3VH800QG8 require external pull-up or pull-down resistors on the B port?
No, the IDTQS3VH800QG8 does not require external pull-up or pull-down resistors on the B port because it features an integrated precharge function controlled by the VBIAS pin. When OE is inactive, the B0–B9 outputs are actively precharged to the user-selected VBIAS voltage (0–5V), eliminating floating nodes and suppressing live-insertion noise - a key differentiator from standard bus switches like the IDTQS3VH800QG8.
What is the purpose of the VBIAS pin on the IDTQS3VH800QG8, and how should it be configured?
The VBIAS pin on the IDTQS3VH800QG8 sets the precharge voltage for the B0–B9 outputs during OE-inactive (high-impedance) state. It accepts 0V to 5V, allowing designers to match system reference levels - e.g., tying to 2.4V for optimal noise suppression in 3.3V systems. Configuration is passive: connect to a stable voltage source or resistor divider; no active driver is needed. This feature is central to the IDTQS3VH800QG8's hot-swap capability.
Can the IDTQS3VH800QG8 be used in analog signal paths, and what performance metrics support that use?
Yes, the IDTQS3VH800QG8 is suitable for analog signal routing due to its 4Ω typical RON, flat RON vs. voltage, 4pF OFF-state capacitance, and rail-to-rail 0–5V operation. These characteristics minimize signal distortion, preserve bandwidth, and reduce crosstalk - validated by THD+N measurements in application notes and confirmed in the IDTQS3VH800QG8's DC electrical specifications and typical performance curves.
Is the IDTQS3VH800QG8 pin-compatible with other devices in the QS3VH family, such as the IDTQS3VH245?
No, the IDTQS3VH800QG8 is not pin-compatible with the IDTQS3VH245. The IDTQS3VH800QG8 is a 10-bit switch in QSOP-24 with dedicated VBIAS and dual 10-bit ports (A0–A9, B0–B9), whereas the IDTQS3VH245 is an 8-bit non-inverting bus switch in TSSOP-20 with no VBIAS pin. Pin count, pinout, and functional allocation differ significantly - direct replacement requires PCB redesign. This distinction is explicit in the IDTQS3VH800QG8's pin configuration diagram and ordering information.
IDTQS3VH800QG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 3VH
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-QSOP
IDTQS3VH800QG8 FAQ
1.How can I place an order for IDTQS3VH800QG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDTQS3VH800QG8 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 IDTQS3VH800QG8 reliable?
The price and inventory of IDTQS3VH800QG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDTQS3VH800QG8 is usually 5 days.
3.What payment methods are accepted for IDTQS3VH800QG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDTQS3VH800QG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDTQS3VH800QG8?
IDTQS3VH800QG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDTQS3VH800QG8 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 IDTQS3VH800QG8?
For technical support, including IDTQS3VH800QG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDTQS3VH800QG8 requirements.
6.How does Aetrix verify that IDTQS3VH800QG8 is sourced from the original manufacturer or authorized distributors?
All IDTQS3VH800QG8 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 IDTQS3VH800QG8 meets industry standards.
7.What is the process for return or replacement of IDTQS3VH800QG8?
All IDTQS3VH800QG8 units undergo pre-shipment inspection (PSI). If there is an issue with IDTQS3VH800QG8, 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 IDTQS3VH800QG8 part is unused and in its original packaging.
Return procedure for IDTQS3VH800QG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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