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Nexperia USA Inc. 74CBTLV3244BQ-Q10X
- Part No.:
- 74CBTLV3244BQ-Q10X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
74CBTLV3244BQ-Q10X.pdf
- Description:
- 74CBTLV3244BQ-Q100/SOT764/DHVQ
- Quantity:
- Payment:
- Shipping:
Inventory:4,605
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Product details
Overview
74CBTLV3244BQ-Q10X from Nexperia is an automotive-qualified 8-bit dual-bus switch with independent 4-bit output enables, configured as two 4-pole single-throw channels. It operates from 2.3 V to 3.6 V, delivers ≤7.0 Ω typical ON-resistance at 3.3 V, supports rail-to-rail signal switching, and features IOFF partial power-down protection. It is used in automotive infotainment data routing where low-latency, bidirectional signal isolation between subsystems is required.
For engineers reviewing the 74CBTLV3244BQ-Q10X datasheet, 74CBTLV3244BQ-Q10X pinout, 74CBTLV3244BQ-Q10X application, or 74CBTLV3244BQ-Q10X equivalent, this page provides verified functional context, validated pin mapping for DHVQFN20, AEC-Q100 Grade 1 qualification status, and real-world timing and leakage parameters - all confirmed against Nexperia's Rev. 2 (24 June 2024) product data sheet.
Technical Context
This device implements two independent 4-channel CMOS bus switches, each controlled by a dedicated active-low output enable (nOE). Each switch channel conducts bidirectionally with no internal direction control - signal flow follows voltage potential across A/B ports. Schmitt-trigger inputs on nOE pins tolerate slow edge rates, enabling robust interfacing with legacy or noisy control logic.
The IOFF circuit actively disables all switch paths when VCC = 0 V, limiting backflow current to ±50 μA max and preventing damage during hot-insertion or partial system power-down. Switch operation is rail-to-rail: full VCC-to-GND signal swing is supported on both A and B ports without level translation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3 V to 3.6 V - compatible with 2.5 V and 3.3 V logic domains; not 1.8 V or 5 V tolerant. |
| ON Resistance (Typ) | 4.0 Ω at VCC = 3.3 V, ISW = 64 mA - ensures minimal voltage drop and signal attenuation in high-speed data paths. |
| Propagation Delay | 0.20 ns typical (VCC = 3.0–3.6 V) - enables sub-nanosecond signal pass-through for DDR/PCIe auxiliary routing. |
| IOFF Leakage | ±50 μA max at VCC = 0 V - guarantees safe hot-swap operation without damaging downstream ICs. |
| Operating Temp | −40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and ADAS ECU environments. |
| ESD Robustness | HBM >2000 V, CDM >1000 V - withstands assembly handling and in-system electrostatic events. |
| OFF-State Capacitance | 5.2 pF typical - minimizes capacitive loading and crosstalk when switches are disabled. |
Pinout & Package
DHVQFN20 (SOT764-1) package: 2.5 mm × 4.5 mm × 0.85 mm body, thermal-enhanced, leadless quad flat with exposed die pad (non-soldered unless connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low enable inputs - each controls four switch channels; HIGH disables associated 4-bit path. |
| 2, 4, 6, 8 | 1A1–1A4 | Port A data I/O for first 4-channel switch - bidirectional, rail-to-rail compatible. |
| 11, 13, 15, 17 | 2A1–2A4 | Port A data I/O for second 4-channel switch - electrically isolated from first A port. |
| 18, 16, 14, 12 | 1B1–1B4 | Port B data I/O for first 4-channel switch - paired with 1A1–1A4; no internal direction logic. |
| 9, 7, 5, 3 | 2B1–2B4 | Port B data I/O for second 4-channel switch - fully independent of first B port. |
| 10 | GND | Ground reference (0 V) - required for biasing and noise immunity; thermal pad may be floated or tied to GND. |
| 20 | VCC | Positive supply input - powers internal logic and switch FETs; must be decoupled locally. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C ambient, including lifetime reliability testing. |
| Independent 4-bit enables | Two separate nOE pins allow selective activation of either 4-bit bus segment - enables dynamic bandwidth partitioning. |
| Rail-to-rail analog switching | Supports full VCC-to-GND signal swing on both A and B ports - preserves signal integrity for analog sensor or audio signals. |
| IOFF partial power-down | Switches automatically enter high-impedance OFF-state with zero VCC, blocking backfeed current up to ±128 mA. |
| Schmitt-trigger nOE inputs | Input hysteresis ≥0.3 V at VCC = 3.3 V - eliminates chatter and false toggling from slow or noisy enable signals. |
Applications
| Automotive Infotainment Data Multiplexing | ADAS Camera Interface Isolation |
|---|---|
|
Use Scenario: Routing LVDS or parallel video data between multiple display controllers and shared MIPI-CSI2 receivers in head-unit systems. IC Role / Device Role / Timing Role: Bidirectional bus switch enabling time-shared access to shared imaging pipelines without signal contention. Use Value: Eliminates need for complex arbitration logic; 0.20 ns propagation delay preserves pixel clock timing integrity across switched paths. |
Use Scenario: Isolating camera sensor outputs during ECU boot or firmware update to prevent spurious frame capture. IC Role / Device Role / Timing Role: Signal gate that disconnects sensor data lines while preserving bias and termination integrity. Use Value: IOFF protection prevents reverse current into powered-down image signal processors, avoiding latch-up risk. |
| Body Control Module Signal Arbitration | Automotive Gateway Subsystem Interfacing |
|
Use Scenario: Sharing LIN or CAN transceiver I/O lines among multiple microcontrollers in door module ECUs. IC Role / Device Role / Timing Role: Low-latency, bidirectional switch enabling software-controlled line ownership handover. Use Value: 4.0 Ω ON-resistance ensures <10 mV drop at 20 mA drive - maintains LIN bus voltage compliance during switching. |
Use Scenario: Connecting diagnostic interfaces (e.g., UDS over CAN) to multiple domain controllers via shared debug headers. IC Role / Device Role / Timing Role: Hot-pluggable signal bridge that isolates inactive domains during diagnostics. Use Value: −40 °C to +125 °C operation and 2000 V HBM ESD rating ensure reliability in under-dash gateway environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3244QPWRQ1 | TI part; 5.5 V max VCC, higher ON-resistance (11 Ω typ), no IOFF, only AEC-Q100 Grade 2 (−40 °C to +105 °C). | Limited to lower-temp automotive zones; unsuitable for engine bay or radar modules requiring 125 °C operation. | Select only if 5 V tolerance is mandatory and IOFF is not required. |
| 74LVC2G66GW-Q100 | Nexperia dual SPST switch; single-channel per package, no output enable, 3.3 V only, 6 Ω ON-resistance. | Requires two devices for 8-bit function; lacks independent enable control - forces simultaneous switching of all channels. | Use only for space-constrained 2-channel isolation where enable granularity is unnecessary. |
Compared with SN74CBT3244QPWRQ1 and 74LVC2G66GW-Q100, the 74CBTLV3244BQ-Q10X uniquely combines AEC-Q100 Grade 1 temperature range, IOFF protection, and per-4-bit enable control - making it the only option for thermally demanding, safety-critical bus arbitration in modern vehicle architectures.
Availability
74CBTLV3244BQ-Q10X is available at Aetrix Electronics and suitable for automotive infotainment multiplexing, ADAS camera interface isolation, and body control module signal arbitration requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74CBTLV3244BQ-Q10X 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions optimized for automotive, industrial, and mobile applications.
The 74CBTLV3244BQ-Q10X belongs to Nexperia's automotive-qualified CBTLV logic family, designed specifically for low-voltage, high-speed bidirectional signal routing in safety-critical vehicle subsystems.
FAQ
Is the 74CBTLV3244BQ-Q10X pin-compatible with the commercial-grade 74CBTLV3244BQ?
Yes - the BQ-Q10X and standard BQ share identical DHVQFN20 (SOT764-1) pinout, electrical characteristics, and functional behavior. The Q10X suffix denotes AEC-Q100 qualification, including enhanced test coverage and extended temperature validation, but does not alter pin assignment or logic function.
Can the 74CBTLV3244BQ-Q10X be used with 1.8 V logic interfaces?
No - the device is specified only for 2.3 V to 3.6 V supply operation. At 1.8 V, VIH minimum rises to 1.7 V (at VCC = 2.3 V), but input thresholds and ON-resistance degrade outside recommended conditions; reliable switching is not guaranteed below 2.3 V.
What is the maximum continuous current per switch channel?
The absolute maximum switch current is ±128 mA per channel, as defined in Table 4 (Limiting Values). At recommended operating conditions, sustained current should remain ≤64 mA to maintain RON ≤7.0 Ω and avoid thermal derating above 111 °C ambient.
Does the exposed thermal pad require soldering to PCB ground?
No - per Nexperia's datasheet note, the thermal pad (terminal 1 index area) has no electrical or mechanical requirement to be soldered. If soldered, it must remain floating or be connected to GND; it is not internally tied to any signal or power net.
74CBTLV3244BQ-Q10X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 4 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 ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-DHVQFN (4.5x2.5)
74CBTLV3244BQ-Q10X FAQ
1.How can I place an order for 74CBTLV3244BQ-Q10X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV3244BQ-Q10X 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 74CBTLV3244BQ-Q10X reliable?
The price and inventory of 74CBTLV3244BQ-Q10X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV3244BQ-Q10X is usually 5 days.
3.What payment methods are accepted for 74CBTLV3244BQ-Q10X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV3244BQ-Q10X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74CBTLV3244BQ-Q10X?
74CBTLV3244BQ-Q10X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV3244BQ-Q10X 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 74CBTLV3244BQ-Q10X?
For technical support, including 74CBTLV3244BQ-Q10X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV3244BQ-Q10X requirements.
6.How does Aetrix verify that 74CBTLV3244BQ-Q10X is sourced from the original manufacturer or authorized distributors?
All 74CBTLV3244BQ-Q10X 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 74CBTLV3244BQ-Q10X meets industry standards.
7.What is the process for return or replacement of 74CBTLV3244BQ-Q10X?
All 74CBTLV3244BQ-Q10X units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV3244BQ-Q10X, 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 74CBTLV3244BQ-Q10X part is unused and in its original packaging.
Return procedure for 74CBTLV3244BQ-Q10X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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