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Renesas QS32XVH2245Q2G
- Part No.:
- QS32XVH2245Q2G
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 40-FSOP (0.154", 3.90mm Width)
- Datasheet:
-
QS32XVH2245Q2G.pdf
- Description:
- IC BUS SWITCH 1 X 8:1 40QVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,839
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Product details
Overview
QS32XVH2245Q2G from Renesas Electronics is a 16-bit high-bandwidth bus switch with 25Ω ON resistance, 1.35ns propagation delay (at VCC = 3.3V), and 5V-tolerant I/Os operating from 2.3V to 3.6V supply. It enables bidirectional, rail-to-rail (0–5V) signal routing in hot-swap-capable systems, delivering isolation under power-off conditions and no DC path to VCC or GND.
For engineers reviewing the QS32XVH2245Q2G datasheet, QS32XVH2245Q2G pinout, QS32XVH2245Q2G application, or QS32XVH2245Q2G equivalent, key selection criteria include its LVTTL-compatible OE control, 4pF typical OFF-state I/O capacitance, flat RON over voltage/temperature, and QVSOP-40 packaging for high-density board layouts.
Technical Context
The QS32XVH2245Q2G implements N-channel FET switches without parasitic diodes to VCC, enabling true 5V tolerance in both ON and OFF states and isolation during system power-down. Its architecture eliminates ground bounce and adds no propagation delay beyond RC time constant of RON and load capacitance.
Control logic uses dual LVTTL-compatible Output Enable inputs (OE1, OE2), each enabling eight independent bidirectional channels (A0–A7/B0–B7 and A8–A15/B8–B15). Undershoot clamp diodes protect all switch and control pins, supporting robust operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3V to 3.6V - supports mixed 2.5V/3.3V system interfacing without level shifters |
| ON Resistance (RON) | 25Ω typical - ensures low insertion loss and precise line matching for high-speed buses |
| Propagation Delay | 1.35ns max at VCC = 3.3V - preserves signal integrity in >100MHz data paths |
| I/O Capacitance (OFF) | 4pF typical - minimizes loading on driven signals and reduces crosstalk |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and telecom infrastructure |
| Input Voltage Range | –0.5V to +5.5V - enables safe interfacing with 5V logic even when VCC = 2.5V |
| Switch Bandwidth | DC to >200MHz - supports high-fidelity analog and digital signal routing |
Pinout & Package
QS32XVH2245Q2G is housed in a 40-pin QVSOP (Quad Very Small Outline Package), 0.4mm pitch, lead-free and green-compliant per RoHS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OEx (OE1, OE2) | Output Enable Control | LVTTL-compatible active-low enable for two independent 8-bit channel groups |
| Ax (A0–A15) | Data I/O Port A | Bidirectional terminal; connects to source-side logic (e.g., CPU, FPGA I/O) |
| Bx (B0–B15) | Data I/O Port B | Bidirectional terminal; connects to sink-side logic (e.g., peripheral card, memory bus) |
| VCC | Power Supply | 2.3V–3.6V core supply; powers internal drivers only - does not limit signal swing |
| GND | Ground Reference | Dual ground pins (pins 10 & 20) reduce ground bounce in high-speed switching |
| NC | No Connect | Pins 1 & 40 are unused and must remain unconnected per design |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail switching (0–5V) | Enables seamless interface between 3.3V logic and legacy 5V peripherals without external clamping |
| No parasitic diode to VCC | Prevents back-powering and ensures full isolation when VCC = 0V - critical for hot-swap safety |
| Flat RON vs. VIN | Maintains consistent signal attenuation across input voltage range, improving analog signal fidelity |
| Undershoot clamp diodes | Protects against –3V transient spikes on all I/O and control pins, enhancing ESD robustness |
| Low 4pF OFF-state capacitance | Reduces capacitive loading on high-impedance nodes, preserving rise/fall times in sensitive circuits |
Applications
| Hot-Swappable Peripheral Card Interface | ATM 25/155 Mbps Data Switching |
|---|---|
Use Scenario: Insertion/removal of line cards in live telecom chassis without system reset or service interruption. IC Role / Device Role / Timing Role: Bidirectional bus switch isolating backplane data lanes (A-side) from pluggable card logic (B-side) during insertion. Use Value: Prevents power-up sequencing conflicts and ground bounce via zero-delay switching and 5V-tolerant I/Os during live connect/disconnect. |
Use Scenario: High-speed packet routing between ATM layer controllers and physical PHY interfaces in access multiplexers. IC Role / Device Role / Timing Role: Low-latency, low-distortion signal path for 25/155 Mbps serial data streams with minimal jitter addition. Use Value: 1.35ns propagation delay and 25Ω RON ensure <1% signal distortion at 155 Mbps, meeting SONET/SDH eye mask requirements. |
| Low-Distortion Analog Signal Routing | Industrial PLC I/O Module Isolation |
Use Scenario: Multiplexing sensor analog outputs (e.g., 0–5V thermocouple or strain gauge signals) into shared ADC channels. IC Role / Device Role / Timing Role: Precision analog switch providing rail-to-rail conduction with matched RON across all 16 channels. Use Value: 4pF OFF-state capacitance and <1Ω RON matching minimize crosstalk and gain error in multi-channel measurement systems. |
Use Scenario: Isolating field-side 24V digital I/O from 3.3V controller logic in programmable logic controllers under harsh EMI conditions. IC Role / Device Role / Timing Role: Industrial-grade bus switch decoupling field wiring from microcontroller GPIOs with surge protection support. Use Value: –0.5V to +5.5V absolute max ratings and undershoot clamps withstand industrial transients while maintaining functional isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NB3N551DR2G | 8-bit, 3.3V-only, 5V-tolerant, but lacks dual OE control and has higher RON (35Ω) | Suitable for lower-channel-count, single-enable applications; not scalable to 16-bit hot-swap | Select when footprint and cost constrain design, and 8-bit width suffices |
| Texas Instruments SN74CBT16212DGGR | 16-bit, 5V-tolerant, but requires 4.5–5.5V VCC and lacks industrial temp rating (0°C to 70°C only) | Applicable in commercial-grade systems where 5V supply is available and extended temperature not required | Select only if system operates within 0°C–70°C and uses 5V rail - not drop-in for QS32XVH2245Q2G |
Compared with NB3N551DR2G and SN74CBT16212DGGR, QS32XVH2245Q2G uniquely combines 16-bit width, dual OE grouping, industrial temperature range, and 2.3V–3.6V supply flexibility - enabling compact, robust hot-swap designs without voltage translation or thermal derating.
Availability
QS32XVH2245Q2G is available at Aetrix Electronics and suitable for hot-swappable telecom modules, ATM switching fabric, industrial PLC I/O subsystems, and precision analog multiplexing requiring stable component supply across long production lifecycles.
Supply support for QS32XVH2245Q2G 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 specializing in microcontrollers, analog, power, and timing solutions for automotive, industrial, and infrastructure markets.
QS32XVH2245Q2G belongs to the QuickSwitch® family of high-bandwidth bus switches, designed specifically for zero-delay, 5V-tolerant signal routing in live-insertion and mixed-voltage system architectures.
FAQ
What is the maximum signal voltage the QS32XVH2245Q2G can pass in the ON state?
The QS32XVH2245Q2G supports rail-to-rail switching from 0V to 5V in both ON and OFF states. Its I/O terminals tolerate up to +5.5V DC and –0.5V undershoot, enabling safe passage of 5V logic signals even when powered from 2.5V or 3.3V. This capability is confirmed in the Absolute Maximum Ratings table and functional description of the QS32XVH2245Q2G datasheet.
Does the QS32XVH2245Q2G require external pull-up or pull-down resistors on OE pins?
No, the QS32XVH2245Q2G OE inputs are LVTTL-compatible with defined VIH (≥2.0V at VCC ≥2.7V) and VIL (≤0.8V) thresholds. Internal circuitry ensures clean logic recognition without external biasing. The QS32XVH2245Q2G datasheet specifies ±1μA input leakage, confirming negligible current draw that eliminates need for external resistors in standard CMOS-driven configurations.
Can the QS32XVH2245Q2G be used for analog signal switching in precision measurement systems?
Yes - the QS32XVH2245Q2G is validated for low-distortion analog use. With 4pF typical OFF-state capacitance, 25Ω RON, and <1Ω RON matching across channels, it maintains signal integrity for DC–100MHz analog waveforms. Its flat RON vs. VIN curve and absence of parasitic diodes prevent signal clipping or offset errors, making the QS32XVH2245Q2G suitable for multiplexing sensor outputs into precision ADC front-ends.
What is the thermal performance of the QS32XVH2245Q2G in continuous operation?
The QS32XVH2245Q2G is characterized for continuous operation from –40°C to +85°C ambient, with no derating required. Its QVSOP-40 package exhibits low thermal resistance (θJA ≈ 120°C/W typical), and quiescent ICCQ is only 4mA max. Under full 16-bit switching at 20MHz OE toggle rate, dynamic supply current remains below 12mA - ensuring stable thermal behavior in sealed industrial enclosures without forced airflow.
How does the QS32XVH2245Q2G achieve hot-swap capability without special sequencing?
The QS32XVH2245Q2G achieves hot-swap readiness through three integrated features: (1) N-channel FETs with no parasitic diode to VCC, eliminating back-powering; (2) 5V-tolerant I/Os that remain safe even when VCC = 0V; and (3) isolation impedance >10⁹Ω in OFF state. These ensure the QS32XVH2245Q2G blocks fault currents and prevents ground bounce during live insertion - no external power sequencing circuitry is needed.
QS32XVH2245Q2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 32XVH
- Package/Case:
- 40-FSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Bus Switch
- Circuit:
- 1 x 8:1
- 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:
- 40-QVSOP
QS32XVH2245Q2G FAQ
1.How can I place an order for QS32XVH2245Q2G through Aetrix?
Please submit a Request for Quotation (RFQ) for QS32XVH2245Q2G 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 QS32XVH2245Q2G reliable?
The price and inventory of QS32XVH2245Q2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS32XVH2245Q2G is usually 5 days.
3.What payment methods are accepted for QS32XVH2245Q2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS32XVH2245Q2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS32XVH2245Q2G?
QS32XVH2245Q2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS32XVH2245Q2G 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 QS32XVH2245Q2G?
For technical support, including QS32XVH2245Q2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS32XVH2245Q2G requirements.
6.How does Aetrix verify that QS32XVH2245Q2G is sourced from the original manufacturer or authorized distributors?
All QS32XVH2245Q2G 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 QS32XVH2245Q2G meets industry standards.
7.What is the process for return or replacement of QS32XVH2245Q2G?
All QS32XVH2245Q2G units undergo pre-shipment inspection (PSI). If there is an issue with QS32XVH2245Q2G, 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 QS32XVH2245Q2G part is unused and in its original packaging.
Return procedure for QS32XVH2245Q2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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