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Nexperia USA Inc. 74LVC1T45GW-Q100H
- Part No.:
- 74LVC1T45GW-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74LVC1T45GW-Q100H.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,127
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Product details
Overview
74LVC1T45GW-Q100 from Nexperia is a single-bit, dual-supply bidirectional translating transceiver with 3-state outputs, designed for voltage-level translation between mismatched logic domains (e.g., 1.8 V ↔ 3.3 V or 1.2 V ↔ 5.0 V). It features independent VCC(A) and VCC(B) supplies (1.2 V to 5.5 V), direction control (DIR), IOFF partial power-down protection, and AEC-Q100 Grade 1 qualification for automotive use in body control modules and infotainment interfaces.
For engineers reviewing the 74LVC1T45GW-Q100 datasheet, 74LVC1T45GW-Q100 pinout, 74LVC1T45GW-Q100 application, or 74LVC1T45GW-Q100 equivalent, key selection criteria include bidirectional level-shifting capability across 1.2–5.5 V rails, IOFF-enabled suspend mode for hot-swap safety, ±24 mA drive strength at 3.0 V, 420 Mbps max data rate (3.3 V → 5.0 V), and TSSOP6 package compatibility with automotive thermal and reliability requirements.
Technical Context
This device implements a dual-rail CMOS transceiver architecture where port A is referenced to VCC(A) and port B to VCC(B), enabling true bidirectional translation without external biasing. DIR controls signal flow direction: HIGH enables A→B, LOW enables B→A. Both ports enter high-impedance OFF-state when either supply is at GND, satisfying automotive suspend-mode requirements.
The IOFF circuit actively disables outputs during power-down, blocking damaging backflow current. The 74LVCH1T45GW-Q100 variant adds active bus-hold on A/B ports to maintain valid logic levels on floating inputs-critical for automotive CAN/LIN interface stubs and sensor hub I/O expansion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCC(A): 1.2 V–5.5 V; VCC(B): 1.2 V–5.5 V - supports translation between any two low-voltage nodes (1.2/1.5/1.8/2.5/3.3/5.0 V) |
| Max Data Rate | 420 Mbps (3.3 V → 5.0 V) - enables high-speed inter-IC communication in ADAS sensor fusion subsystems |
| IOFF Leakage | ±2 μA max (−40 °C to +125 °C) - ensures safe hot-plug operation in modular ECU architectures |
| Output Drive | ±24 mA at VCC = 3.0 V - drives 50 Ω transmission lines or multiple 74LVC inputs without buffering |
| Propagation Delay | tPLH/tPHL ≤ 8.3 ns (VCC(A)=3.3 V, VCC(B)=3.3 V) - meets timing budgets for 100+ MHz digital buses |
| ESD Protection | HBM: >4000 V; CDM: >1000 V - exceeds AEC-Q100 stress test requirements for assembly robustness |
| Ambient Temp | −40 °C to +125 °C - qualified for under-hood and powertrain control applications |
Pinout & Package
TSSOP6 (SOT363-2) package: 1.25 mm body width, 0.65 mm pitch, lead-free, RoHS-compliant, optimized for automated optical inspection and reflow soldering in automotive PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC(A) | Supply for port A and DIR input | References A port and DIR logic thresholds; must be stable before enabling direction control |
| 2 - GND | Common ground reference | Shared return path for both supply domains; requires low-inductance layout to minimize noise coupling |
| 3 - A | Bidirectional data I/O (port A) | Connects to 1.2–5.5 V domain; supports bus-hold only in LVCH variant; accepts up to 5.5 V inputs |
| 4 - B | Bidirectional data I/O (port B) | Connects to independent 1.2–5.5 V domain; referenced to VCC(B); high-impedance when disabled |
| 5 - DIR | Direction control input | Active-HIGH: A→B; Active-LOW: B→A; referenced to VCC(A); edge-triggered enable/disable timing critical |
| 6 - VCC(B) | Supply for port B | Enables independent rail scaling; powers output drivers for B port; must be present before asserting DIR |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply translation | Independent VCC(A)/VCC(B) rails allow seamless interfacing between heterogeneous voltage domains (e.g., 1.8 V MCU ↔ 3.3 V sensor) |
| IOFF partial power-down | Prevents back-current flow when either VCC is off - essential for modular ECUs with staggered power sequencing |
| Suspend mode | Both A and B ports go high-Z if VCC(A) = GND or VCC(B) = GND - meets ISO 16750-2 load-dump and battery-disconnect requirements |
| Bus-hold (LVCH variant) | Active pull-up/pull-down on A/B pins eliminates need for external resistors on unused I/O in LIN/CAN node expansion |
| AEC-Q100 Grade 1 | Qualified for −40 °C to +125 °C operation - validated for engine control, transmission, and ADAS electronic control units |
Applications
| Automotive Body Control Module | ADAS Sensor Hub Interface |
|---|---|
|
Use Scenario: Interfacing a 1.8 V microcontroller GPIO to a 5.0 V HVAC actuator driver IC. IC Role / Device Role / Timing Role: Bidirectional level translator enabling command/status exchange over shared control bus with precise direction switching via DIR. Use Value: Eliminates discrete resistor-divider networks and reduces BOM count while maintaining <8.3 ns propagation delay for real-time actuator response. |
Use Scenario: Connecting multiple 2.5 V image sensors to a 3.3 V SoC video processor in surround-view camera system. IC Role / Device Role / Timing Role: Voltage-translating transceiver managing bidirectional I²C/SPI control and pixel data handshaking between sensor and host. Use Value: Supports 210 Mbps data rate at 2.5 V→3.3 V translation, meeting MIPI CSI-2 timing margins without added latency. |
| Infotainment Display Interface | Electric Power Steering (EPS) MCU Expansion |
|
Use Scenario: Bridging a 1.2 V display controller to a 3.3 V touch controller in a TFT-LCD cluster panel. IC Role / Device Role / Timing Role: Dual-rail transceiver handling bidirectional I²C communication and interrupt signaling with IOFF protection during display sleep mode. Use Value: IOFF leakage <±2 μA prevents battery drain during vehicle ignition-off state, extending parked battery life. |
Use Scenario: Expanding GPIO count of a 5.0 V EPS MCU to interface with 1.5 V torque sensor ADC and 2.5 V motor driver SPI. IC Role / Device Role / Timing Role: Multi-voltage translator enabling simultaneous 5.0 V↔1.5 V and 5.0 V↔2.5 V level shifting on shared data lines. Use Value: Single-device solution replaces two discrete translators, reducing PCB area by 35% and improving signal integrity via matched trace lengths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0101QPWRQ1 | Single-channel, auto-direction sensing (no DIR pin); lower drive (±8 mA); max 60 Mbps | Best for low-speed, low-pin-count I²C/SMBus; unsuitable for high-speed SPI or directional control protocols | Select when direction is predictable and speed <60 Mbps; avoid for DIR-gated control paths requiring deterministic timing. |
| SN74AVC1T45DBVR | Non-automotive grade; −40 °C to +85 °C only; no AEC-Q100 qualification; higher ICC (24 μA vs 16 μA) | Targeted for industrial/commercial systems; lacks automotive thermal and reliability validation | Acceptable for non-safety-critical cabin electronics; reject for powertrain, chassis, or ADAS applications requiring Grade 1 compliance. |
Compared with TXS0101QPWRQ1 and SN74AVC1T45DBVR, the 74LVC1T45GW-Q100 uniquely combines AEC-Q100 Grade 1 qualification, 420 Mbps performance, IOFF-enabled suspend mode, and dual-supply flexibility - making it the only choice for high-reliability, high-speed automotive domain bridging.
Availability
74LVC1T45GW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS sensor hubs, infotainment display interfaces, and electric power steering MCU expansion requiring stable component supply across extended temperature and lifecycle demands.
Supply support for 74LVC1T45GW-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-grade components and advanced packaging technologies.
The 74LVC1T45-Q100 product line delivers AEC-Q100-qualified, dual-supply level translators engineered specifically for automotive domain controllers, sensor interfaces, and ECU I/O expansion where voltage interoperability and functional safety are mandatory.
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, meaning ΔVCC can reach up to 4.3 V (e.g., VCC(A) = 1.2 V, VCC(B) = 5.5 V). No derating is required, and all static/dynamic specs remain valid across this full range - confirmed in Tables 6 and 9–13.
Does the 74LVC1T45GW-Q100 support hot insertion when one supply is powered and the other is off?
Yes. The IOFF circuit ensures that when either VCC(A) or VCC(B) is at GND, the corresponding port enters high-impedance OFF-state with leakage <±2 μA (Table 8), preventing back-current and enabling safe hot-swap in modular automotive subassemblies.
How does the DIR pin behave during power-up sequencing?
DIR is referenced to VCC(A), so it must be held stable (HIGH or LOW) only after VCC(A) reaches ≥1.2 V. Propagation delays (tPHZ/tPLZ) are guaranteed from DIR transition to output disable/enable (Table 9), with worst-case tPHZ = 12.2 ns at 5.0 V - sufficient for synchronous MCU GPIO initialization.
Is bus-hold functionality present on the 74LVC1T45GW-Q100 or only the LVCH variant?
Bus-hold is exclusive to the 74LVCH1T45GW-Q100 (marked "X5"). The 74LVC1T45GW-Q100 (marked "V5") lacks bus-hold; its A/B inputs float when un-driven. External pull-ups/downs are required for unused pins in LVC variants - verified in Table 3 and Section 10's IBHL/IBHH parameter definitions.
74LVC1T45GW-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:
- 1
- 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:
- 6-TSSOP, SC-88, SOT-363
74LVC1T45GW-Q100H FAQ
1.How can I place an order for 74LVC1T45GW-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1T45GW-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 74LVC1T45GW-Q100H reliable?
The price and inventory of 74LVC1T45GW-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1T45GW-Q100H is usually 5 days.
3.What payment methods are accepted for 74LVC1T45GW-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1T45GW-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1T45GW-Q100H?
74LVC1T45GW-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1T45GW-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 74LVC1T45GW-Q100H?
For technical support, including 74LVC1T45GW-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1T45GW-Q100H requirements.
6.How does Aetrix verify that 74LVC1T45GW-Q100H is sourced from the original manufacturer or authorized distributors?
All 74LVC1T45GW-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 74LVC1T45GW-Q100H meets industry standards.
7.What is the process for return or replacement of 74LVC1T45GW-Q100H?
All 74LVC1T45GW-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1T45GW-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 74LVC1T45GW-Q100H part is unused and in its original packaging.
Return procedure for 74LVC1T45GW-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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