My Inquiry
My Account
Renesas QS32XVH2245Q2G8
- Part No.:
- QS32XVH2245Q2G8
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 40-FSOP (0.154", 3.90mm Width)
- Datasheet:
-
QS32XVH2245Q2G8.pdf
- Description:
- IC BUS SWITCH 1 X 8:1 40QVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,017
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
QS32XVH2245Q2G8 from Renesas Electronics is a 16-bit high-bandwidth bus switch with 25Ω ON resistance, 1.35ns propagation delay (at VCC = 3.3V), and rail-to-rail 0–5V switching capability. It operates from 2.3V to 3.6V supply, supports LVTTL-compatible control inputs, and is rated for industrial temperature range (−40°C to +85°C). It enables bidirectional hot-swappable data flow in backplane and pluggable card interfaces.
For engineers reviewing the QS32XVH2245Q2G8 datasheet, QS32XVH2245Q2G8 pinout, QS32XVH2245Q2G8 application, or QS32XVH2245Q2G8 equivalent, key selection criteria include 5V-tolerant I/Os in both ON/OFF states, near-zero ground bounce during switching, flat RON over voltage/temperature, low 4pF OFF-state capacitance, and QVSOP-40 packaging for high-density board layouts.
Technical Context
The QS32XVH2245Q2G8 implements 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 signal flow with no added propagation delay beyond intrinsic RC time constant (~1.35ns at CL = 50pF).
It features undershoot clamp diodes on all switch and control inputs, rail-to-rail analog switching (0–5V), and LVTTL-compatible OE inputs with VIH/VIL thresholds defined across 2.3V–3.6V VCC range. The device delivers matched RON between channels and maintains high OFF impedance (>109 Ω) for signal integrity in shared-bus environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3V to 3.6V - Enables interoperability with both 2.5V and 3.3V logic domains without level shifters. |
| ON Resistance | 25Ω typical - Ensures minimal insertion loss and precise line matching for high-speed digital or low-distortion analog signals. |
| Propagation Delay | 1.35ns max at VCC = 3.3V - Delivers sub-nanosecond timing margin for >200MHz system clocks and fast enable toggling. |
| I/O Capacitance (OFF) | 4pF typical - Reduces capacitive loading on driven buses, preserving signal rise/fall times and minimizing crosstalk. |
| Operating Temperature | −40°C to +85°C - Qualified for industrial-grade embedded systems, telecom line cards, and automated test equipment. |
| 5V Tolerance | Yes on all A/B I/Os in ON and OFF states - Allows safe interfacing with legacy 5V peripherals while powered from 2.5V/3.3V rails. |
| Package | 40-pin QVSOP - Surface-mount package with 0.5mm pitch, optimized for compact PCB layouts and thermal performance in dense switch matrices. |
Pinout & Package
QS32XVH2245Q2G8 is housed in a 40-pin QVSOP (Quad Very Small Outline Package) with 0.5mm lead pitch, exposed pad for thermal dissipation, and industrial-grade moisture sensitivity level (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OEx (OE1, OE2) | Output Enable control input | Active-Low enable per 8-bit segment; controls bidirectional connection between corresponding A and B ports with no added delay. |
| A0–A15 | Data I/O port A | 16-bit bidirectional switch input/output; 5V tolerant, low-capacitance node for upstream logic or processor interface. |
| B0–B15 | Data I/O port B | 16-bit bidirectional switch input/output; connects to downstream bus, peripheral, or hot-swap connector with full 0–5V swing support. |
| VCC | Power supply | Single 2.3–3.6V supply powering internal logic and FET gate drivers; decoupling required per high-frequency operation. |
| GND (Pins 10, 20) | Ground reference | Dual ground pins reduce ground bounce and improve noise immunity during simultaneous 16-bit switching events. |
| NC (Pins 1, 40) | No-connect | Unbonded pins; must remain unconnected to avoid unintended coupling or mechanical stress on package leads. |
Key Features
| Feature | Design Value |
|---|---|
| N-channel FET switches without parasitic diode to VCC | Enables true power-off isolation and eliminates leakage paths-critical for hot-swap safety and system-level power sequencing. |
| Rail-to-rail 0–5V analog/digital switching | Supports mixed-voltage systems and legacy 5V signaling without external clamping or translation circuitry. |
| Flat RON vs. input voltage | Maintains consistent signal attenuation and impedance matching across full 0–5V input range, reducing harmonic distortion in analog applications. |
| Undershoot clamp diodes on all I/Os | Protects internal FET gates from negative transients down to −3V (20ns pulse), improving robustness in noisy industrial environments. |
| Low 4pF OFF-state capacitance | Minimizes signal coupling between adjacent channels and preserves bandwidth in high-density multiplexed bus architectures. |
Applications
| Hot-Swappable Backplane Interface | Low-Distortion Analog Signal Routing |
|---|---|
Use Scenario: Pluggable line card insertion/removal in telecom central office equipment while main system remains operational. IC Role / Device Role / Timing Role: Bidirectional bus switch isolating card-side logic from backplane bus during insertion; enables zero-downtime maintenance. Use Value: Prevents bus contention and ground bounce via near-zero-delay switching and 5V-tolerant I/Os, ensuring signal integrity during live connect/disconnect. | Use Scenario: Programmable gain stage routing in automated test equipment where multiple sensor inputs feed a shared ADC. IC Role / Device Role / Timing Role: Low-noise analog multiplexer replacing electromechanical relays; passes DC–100MHz signals with minimal THD. Use Value: 25Ω RON and flat response deliver <0.01% gain error; 4pF CI/O avoids bandwidth roll-off in wideband measurement paths. |
| ATM 25/155 Mbps Switch Fabric | Processor-to-Peripheral Bridge in Industrial PLC |
Use Scenario: Data path switching between ATM SAR controllers and physical layer devices in legacy broadband access nodes. IC Role / Device Role / Timing Role: High-speed 16-bit bus switch synchronizing cell payload transfers with minimal jitter addition. Use Value: 1.35ns tPLH/tPHL ensures sub-cycle latency; matched RON maintains skew <50ps across all 16 lanes. | Use Scenario: Isolating microcontroller GPIOs from field-side I/O modules subject to ESD and surge events in factory automation. IC Role / Device Role / Timing Role: Robust interface buffer providing galvanic separation, transient protection, and voltage-level flexibility. Use Value: Undershoot clamps and 5V tolerance protect MCU pins; industrial temp rating ensures reliability in uncontrolled cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT162245DGGR | Higher typical RON (35Ω), wider VCC range (4.5–5.5V), no 5V tolerance in OFF state | Requires 5V supply; unsuitable for mixed-voltage hot-swap where A/B side may be unpowered | Select only if system uses 5V-only rails and does not require power-off isolation. |
| PI3CH400QE | Lower bandwidth (1GHz vs >2GHz), 12-bit configuration, no undershoot clamps | Limited channel count and missing transient protection reduce suitability for high-reliability industrial backplanes | Consider for cost-sensitive, lower-pin-count designs where full 16-bit hot-swap isn't required. |
Compared with SN74CBT162245DGGR and PI3CH400QE, the QS32XVH2245Q2G8 uniquely combines 5V tolerance in both ON/OFF states, true power-off isolation, and 16-bit density in QVSOP-making it the only option qualified for zero-downtime industrial hot-swap with mixed-voltage domain bridging.
Availability
QS32XVH2245Q2G8 is available at Aetrix Electronics and suitable for hot-swappable backplane interfaces, low-distortion analog routing, ATM switching fabric, and industrial PLC I/O bridging requiring stable component supply across extended temperature and long production lifecycles.
Supply support for QS32XVH2245Q2G8 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 SoC solutions for automotive, industrial, infrastructure, and IoT applications.
The QS32XVH2245Q2G8 belongs to Renesas' QuickSwitch® bus switch family, engineered specifically for high-integrity hot-swap, mixed-voltage interconnect, and low-noise analog/data routing in mission-critical industrial and telecom systems.
FAQ
What is the maximum operating frequency of the QS32XVH2245Q2G8 enable inputs?
The QS32XVH2245Q2G8 supports an enable toggle frequency up to 20MHz at VCC = 3.3V, as specified in the switching characteristics table. This allows rapid reconfiguration of the 16-bit bus path without introducing timing violations. The QS32XVH2245Q2G8 achieves this using low-capacitance control inputs and optimized driver stages, making it suitable for dynamic bus arbitration schemes in real-time systems.
Does the QS32XVH2245Q2G8 require external pull-up or pull-down resistors on its OE pins?
No, the QS32XVH2245Q2G8 OE inputs are LVTTL-compatible with defined VIH and VIL thresholds across the full 2.3V–3.6V VCC range and do not require external biasing. Internal design ensures clean logic thresholds without external resistors. The QS32XVH2245Q2G8 datasheet specifies VIH ≥ 2.0V (for VCC ≥ 2.7V) and VIL ≤ 0.8V, enabling direct connection to standard FPGA or microcontroller GPIOs.
Can the QS32XVH2245Q2G8 safely interface a 3.3V microcontroller with a 5V sensor without level shifters?
Yes-the QS32XVH2245Q2G8 supports 5V-tolerant I/Os on both A and B ports in both ON and OFF states, allowing direct connection between 3.3V logic and 5V peripherals. When powered from 3.3V, the QS32XVH2245Q2G8 passes 0–5V signals without clamping or distortion, eliminating need for discrete level translators in mixed-voltage sensor interfaces.
What is the thermal performance of the QS32XVH2245Q2G8 in continuous 16-bit switching operation?
The QS32XVH2245Q2G8 QVSOP package includes an exposed thermal pad and is characterized for θJA ≈ 65°C/W under standard JEDEC 2-layer board conditions. At full 16-bit switching with 30mA per channel, total power dissipation remains below 120mW, resulting in <8°C junction rise above ambient-well within industrial −40°C to +85°C limits. The QS32XVH2245Q2G8 requires no heatsink for typical hot-swap duty cycles.
How does the QS32XVH2245Q2G8 prevent ground bounce during simultaneous 16-bit switching?
The QS32XVH2245Q2G8 eliminates ground bounce by using bidirectional FET switches with no added propagation delay and separate ground pins (Pins 10 and 20) to isolate return current paths. Its architecture avoids charge injection and current surges typical of CMOS transmission gates. During simultaneous switching, the QS32XVH2245Q2G8's low 4pF I/O capacitance and matched RON ensure uniform edge rates and minimal ΔI/Δt-induced noise.
QS32XVH2245Q2G8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 32XVH
- Package/Case:
- 40-FSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
QS32XVH2245Q2G8 FAQ
1.How can I place an order for QS32XVH2245Q2G8 through Aetrix?
Please submit a Request for Quotation (RFQ) for QS32XVH2245Q2G8 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 QS32XVH2245Q2G8 reliable?
The price and inventory of QS32XVH2245Q2G8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QS32XVH2245Q2G8 is usually 5 days.
3.What payment methods are accepted for QS32XVH2245Q2G8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QS32XVH2245Q2G8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QS32XVH2245Q2G8?
QS32XVH2245Q2G8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QS32XVH2245Q2G8 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 QS32XVH2245Q2G8?
For technical support, including QS32XVH2245Q2G8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QS32XVH2245Q2G8 requirements.
6.How does Aetrix verify that QS32XVH2245Q2G8 is sourced from the original manufacturer or authorized distributors?
All QS32XVH2245Q2G8 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 QS32XVH2245Q2G8 meets industry standards.
7.What is the process for return or replacement of QS32XVH2245Q2G8?
All QS32XVH2245Q2G8 units undergo pre-shipment inspection (PSI). If there is an issue with QS32XVH2245Q2G8, 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 QS32XVH2245Q2G8 part is unused and in its original packaging.
Return procedure for QS32XVH2245Q2G8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
QS32XVH2245Q2G8 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…
