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Nexperia USA Inc. 74LVC2T45DC-Q100H
- Part No.:
- 74LVC2T45DC-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74LVC2T45DC-Q100H.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,168
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Product details
Overview
74LVC2T45DC-Q100 from Nexperia is an automotive-grade dual-supply bidirectional voltage-level translating transceiver in VSSOP8 package, supporting 1.2 V to 5.5 V on both A and B ports, enabling interoperability between 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V logic domains. It features 3-state outputs, IOFF partial power-down protection, and AEC-Q100 Grade 1 qualification for under-hood automotive control modules.
For engineers reviewing the 74LVC2T45DC-Q100 datasheet, 74LVC2T45DC-Q100 pinout, 74LVC2T45DC-Q100 application, or 74LVC2T45DC-Q100 equivalent, key selection criteria include dual-rail translation capability, suspend-mode high-impedance behavior during power loss, bus hold functionality (in LVCH variant), and guaranteed timing across -40 °C to +125 °C with ≤23.5 ns max tPLH at 1.5 V/1.5 V.
Technical Context
This device implements a direction-controlled, dual-port bidirectional translation architecture where DIR input selects data flow direction: HIGH enables A→B, LOW enables B→A. Both ports operate independently with separate VCC(A) and VCC(B) supplies, each referenced to its own supply rail - nA and DIR to VCC(A), nB to VCC(B).
IOFF circuitry actively disables outputs when either VCC(A) or VCC(B) is at GND, preventing backflow current and ensuring safe partial power-down operation. In suspend mode, both A and B ports enter high-impedance OFF-state regardless of DIR state, meeting automotive system-level power sequencing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range (VCC(A)/VCC(B)) | 1.2 V to 5.5 V - supports translation between all common low-voltage logic families without level-shifter ICs |
| Max Data Rate | 420 Mbps (3.3 V ↔ 5.0 V) - enables high-speed inter-domain communication in ADAS sensor interfaces |
| Propagation Delay (tPLH) | ≤23.5 ns (VCC(A)=1.5 V, VCC(B)=1.5 V, -40 °C to +125 °C) - ensures timing compliance in real-time CAN/FlexRay gateway designs |
| IOFF Leakage Current | ±2 μA max - guarantees safe hot-plug and power-gating behavior in modular ECU architectures |
| ESD Protection | HBM >4000 V, CDM >1000 V - meets stringent automotive board-level ESD robustness requirements |
| Operating Temperature | -40 °C to +125 °C - qualified for engine control, transmission, and battery management systems |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive 50 Ω transmission lines or fan-out to multiple loads |
Pinout & Package
VSSOP8 (SOT765-1) package: plastic very thin shrink small outline, 8 leads, 2.3 mm body width, 0.5 mm pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC(A) | Supply for port A and DIR input - defines logic thresholds and output swing for A-side signals |
| 2 | 1A | Bidirectional data terminal A1 - connects to 1.2–5.5 V domain A; referenced to VCC(A) |
| 3 | 2A | Bidirectional data terminal A2 - second channel on A port; shares VCC(A) reference |
| 4 | GND | Common ground reference - required for noise immunity and ESD path integrity |
| 5 | DIR | Direction control input - HIGH = A→B, LOW = B→A; referenced to VCC(A) |
| 6 | 2B | Bidirectional data terminal B2 - connects to independent 1.2–5.5 V domain B; referenced to VCC(B) |
| 7 | 1B | Bidirectional data terminal B1 - first channel on B port; shares VCC(B) reference |
| 8 | VCC(B) | Supply for port B - defines logic thresholds and output swing for B-side signals |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent supply rails | VCC(A) and VCC(B) each configurable 1.2–5.5 V - eliminates need for external LDOs or charge pumps in mixed-voltage ECUs |
| IOFF partial power-down | Active leakage suppression when either supply is off - prevents backfeeding in fault-tolerant power architectures |
| Suspend mode | Both ports go high-Z when VCC(A) = GND or VCC(B) = GND - supports safe sleep/wake transitions in vehicle networks |
| Automotive qualification | AEC-Q100 Grade 1 (-40 °C to +125 °C) - certified for powertrain, chassis, and ADAS applications |
| High noise immunity | Exceeds JEDEC JESD8-7/8-5/8C/36 standards - ensures reliable operation in electrically noisy engine compartments |
Applications
| Engine Control Unit (ECU) Signal Bridging | ADAS Camera Interface Translation |
|---|---|
Use Scenario: Interfacing a 1.8 V microcontroller core to legacy 5.0 V sensor inputs in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Bidirectional level translator enabling real-time analog-to-digital trigger synchronization and status feedback across voltage domains. Use Value: Eliminates discrete resistor-divider networks and reduces PCB area by 65% versus discrete solutions while maintaining <25 ns propagation delay budget. |
Use Scenario: Connecting a 3.3 V image signal processor to a 1.2 V MIPI CSI-2 camera module in surround-view systems. IC Role / Device Role / Timing Role: Dual-channel voltage translator handling clock and data lanes with matched delay paths for pixel timing integrity. Use Value: Supports 420 Mbps translation rate at 3.3 V ↔ 1.2 V, preserving MIPI D-PHY eye diagram margins per UNECE R155 functional safety requirements. |
| Electric Power Steering (EPS) Bus Isolation | Automotive Infotainment Domain Gateway |
Use Scenario: Level-shifting SPI commands between a 5.0 V motor driver ASIC and a 1.5 V safety MCU in EPS actuator assemblies. IC Role / Device Role / Timing Role: Direction-controlled transceiver managing command/response handshaking with IOFF-enabled fail-safe shutdown during overtemperature events. Use Value: IOFF leakage <±2 μA prevents unintended motor activation during partial power loss, satisfying ISO 26262 ASIL-B diagnostic coverage targets. |
Use Scenario: Translating I²C control signals between a 2.5 V audio DSP and a 3.3 V vehicle telematics module in head unit designs. IC Role / Device Role / Timing Role: Dual-bit translator operating in open-drain I²C mode with bus hold on unused pins to prevent floating SDA/SCL states. Use Value: Active bus hold (IBHL/IBHH ≥15 μA at 1.4 V) maintains valid logic levels during hot-swap of infotainment modules without external pull-ups. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply translating transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LXC2T45QPWRQ1 | TI part with identical 2-bit dual-supply architecture, same VCC range (1.2–5.5 V), but higher ICC (max 20 μA vs. 16 μA) and no bus hold | Lacks active bus hold; requires external pull resistors in floating-bus scenarios | Select when lower static current is critical and bus hold is managed externally |
| 74LVCH2T45DC-Q100 | Same Nexperia footprint and pinout, but includes active bus hold circuitry (IBHL/IBHH ≥100 μA at 4.5 V) and slightly higher ICC (max 32 μA) | Enables direct connection to unterminated buses; eliminates need for external biasing in low-pin-count modules | Select when interfacing to un-driven or intermittently connected signals (e.g., diagnostic test points, modular connectors) |
Compared with SN74LXC2T45QPWRQ1, the 74LVC2T45DC-Q100 offers lower quiescent current and AEC-Q100 documentation traceability; compared with 74LVCH2T45DC-Q100, it trades bus hold capability for reduced ICC and lower cost in fixed-configuration designs.
Availability
74LVC2T45DC-Q100 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera interfaces, and electric power steering systems requiring stable component supply with full AEC-Q100 lifecycle support.
Supply support for 74LVC2T45DC-Q100 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 high-volume, high-reliability logic, analog, and MOSFET solutions, with leadership in automotive-qualified components.
The 74LVC2T45-Q100 product line delivers dual-supply level translation for automotive subsystems requiring mixed-voltage interoperability, low-power operation, and robustness in harsh environments.
FAQ
What is the maximum allowable voltage difference between VCC(A) and VCC(B)?
The datasheet permits any combination within 1.2 V to 5.5 V per rail, including ΔVCC up to 4.3 V (e.g., VCC(A) = 1.2 V, VCC(B) = 5.5 V). No derating is required, and all timing and drive specifications remain valid across this full differential range per Table 6 and Table 12.
Does the 74LVC2T45DC-Q100 support hot insertion?
Yes - IOFF circuitry ensures outputs enter high-impedance state when either VCC(A) or VCC(B) is at 0 V, limiting backflow current to ±2 μA max. This enables safe live insertion into powered-backplane systems such as automotive domain controllers with staggered power-up sequences.
Can DIR be driven from a different voltage domain than VCC(A)?
No - DIR is strictly referenced to VCC(A); its VIH/VIL thresholds scale with VCC(A) (e.g., VIH = 0.65×VCC(A) for 1.4–1.95 V operation). Driving DIR from VCC(B) or another rail violates absolute maximum ratings and may cause undefined logic states or latch-up.
Is there a version with integrated ESD protection beyond HBM 4000 V?
No - the 74LVC2T45DC-Q100 provides HBM >4000 V and CDM >1000 V per JS-001/JS-002, which exceeds AEC-Q100 stress test requirements. For systems requiring IEC 61000-4-2 level 4 (8 kV contact), external TVS diodes remain necessary; Nexperia does not offer a factory-enhanced ESD variant of this part number.
74LVC2T45DC-Q100H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 1.2 V ~ 5.5 V
- Voltage - VCCB:
- 1.2 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 420Mbps
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VFSOP (0.091", 2.30mm Width)
74LVC2T45DC-Q100H FAQ
1.How can I place an order for 74LVC2T45DC-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2T45DC-Q100H 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 74LVC2T45DC-Q100H reliable?
The price and inventory of 74LVC2T45DC-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2T45DC-Q100H is usually 5 days.
3.What payment methods are accepted for 74LVC2T45DC-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC2T45DC-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC2T45DC-Q100H?
74LVC2T45DC-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2T45DC-Q100H 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 74LVC2T45DC-Q100H?
For technical support, including 74LVC2T45DC-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2T45DC-Q100H requirements.
6.How does Aetrix verify that 74LVC2T45DC-Q100H is sourced from the original manufacturer or authorized distributors?
All 74LVC2T45DC-Q100H 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 74LVC2T45DC-Q100H meets industry standards.
7.What is the process for return or replacement of 74LVC2T45DC-Q100H?
All 74LVC2T45DC-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2T45DC-Q100H, 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 74LVC2T45DC-Q100H part is unused and in its original packaging.
Return procedure for 74LVC2T45DC-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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