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Nexperia USA Inc. 74LVC1T45GF,132
- Part No.:
- 74LVC1T45GF,132
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74LVC1T45GF,132.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 6XSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,169
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Product details
Overview
74LVC1T45GF,132 from Nexperia is a single-bit dual-supply translating transceiver with 3-state outputs enabling bidirectional level translation between 1.2 V and 5.5 V domains. It features independent VCC(A) and VCC(B) supplies, DIR-controlled data direction (A↔B), IOFF-enabled partial power-down, and operates across –40 °C to +125 °C. Used in mixed-voltage I²C, UART, and GPIO interfacing between legacy 5 V microcontrollers and modern 1.8 V sensors.
For engineers reviewing the 74LVC1T45GF,132 datasheet, 74LVC1T45GF,132 pinout, 74LVC1T45GF,132 application, or 74LVC1T45GF,132 equivalent, key selection criteria include dual-rail voltage flexibility (1.2–5.5 V per rail), 420 Mbps max data rate (3.3 V → 5.0 V), IOFF leakage < ±2 μA at power-down, and TSSOP6 package compatibility with high-density PCB layouts.
Technical Context
This device implements a bidirectional bus transceiver architecture where DIR selects signal flow direction: HIGH enables A→B translation, LOW enables B→A. Both data ports (A and B) are referenced to their respective supply rails (VCC(A) and VCC(B)), allowing independent logic-level domains without shared ground constraints.
The IOFF circuit actively disables outputs when either VCC rail drops to GND, preventing backflow current and enabling true suspend-mode operation. Active bus-hold circuitry (in LVCH variant) is not present in the LVC version, confirmed by static characteristics tables showing no IBHL/IBHH values for 74LVC1T45.
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 logic families (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V) |
| Max Data Rate | 420 Mbps (3.3 V → 5.0 V) - enables high-speed interface bridging without protocol-specific timing constraints |
| IOFF Leakage Current | ±2 μA max at –40 °C to +125 °C - ensures safe hot-swap and partial power-down in multi-rail systems |
| Propagation Delay (A→B, VCC=3.3 V) | 5.3 ns typ - guarantees sub-10 ns latency for real-time control loop interfacing |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - drives standard CMOS loads with margin across temperature and voltage extremes |
| ESD Protection | HBM >4000 V, CDM >1000 V - meets industrial IEC 61000-4-2 system-level robustness requirements |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and telecom infrastructure use |
Pinout & Package
74LVC1T45GF,132 is packaged in SOT363-2 (TSSOP6), a 6-lead thin shrink small outline package with 1.25 mm body width and 0.5 mm pitch. Pin 1 indicator is located on the lower left corner below the marking code "V5".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC(A) | Supply reference for port A and DIR input - sets logic thresholds and output drive levels for A-side signals |
| 2 | GND | Common ground return - required for all internal biasing and ESD protection networks |
| 3 | A | Bidirectional data I/O referenced to VCC(A) - functions as input or output depending on DIR state |
| 4 | B | Bidirectional data I/O referenced to VCC(B) - isolated voltage domain enables level-shifting without level translators |
| 5 | DIR | Direction control input referenced to VCC(A) - HIGH = A→B, LOW = B→A; latched internally for glitch-free switching |
| 6 | VCC(B) | Supply reference for port B - independently configurable to match target interface voltage (e.g., 1.8 V sensor rail) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent supply rails | VCC(A) and VCC(B) each support 1.2–5.5 V - eliminates need for external level-shifting components in mixed-voltage SoC designs |
| IOFF partial power-down | Outputs enter high-impedance OFF-state with < ±2 μA leakage when either VCC = 0 V - prevents backfeeding in powered-down subsystems |
| Wide temperature operation | Specified from –40 °C to +125 °C - supports automotive engine control units and industrial motor drives without derating |
| High noise immunity | Input hysteresis and 4 kV HBM ESD rating - maintains reliable operation in electrically noisy factory-floor environments |
| Low static power | 16 μA max ICC at 25 °C - extends battery life in always-on IoT edge nodes with intermittent communication |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Interfacing 1.8 V MEMS pressure sensors to a 3.3 V microcontroller ADC subsystem. IC Role / Device Role / Timing Role: Bidirectional level translator isolating sensor domain from MCU domain while preserving signal integrity and timing alignment. Use Value: Eliminates discrete resistor-divider networks, reduces BOM count by 4 components per channel, and maintains <10 ns propagation skew across temperature. |
Use Scenario: Connecting 5 V CAN transceiver status pins to a 3.3 V body controller MCU GPIO. IC Role / Device Role / Timing Role: Unidirectional (DIR fixed) voltage translator ensuring 5 V logic-high signals are safely interpreted as valid HIGH at 3.3 V inputs. Use Value: Prevents overvoltage damage to MCU pins, supports hot-plug detection via DIR-controlled enable, and meets ISO 11898-2 EMC immunity requirements. |
| Server Baseboard Management | Programmable Logic I/O Expansion |
|
Use Scenario: Bridging SMBus (3.3 V) host processor to 1.2 V DDR5 SPD EEPROMs. IC Role / Device Role / Timing Role: Bidirectional I²C-compatible translator with IOFF enabling safe EEPROM hot-swap during live server maintenance. Use Value: Enables full SMBus compliance (clock stretching, arbitration) across voltage domains without protocol-aware logic, reducing firmware complexity. |
Use Scenario: Extending FPGA I/O banks to interface with legacy 5 V peripheral modules in test equipment. IC Role / Device Role / Timing Role: Direction-controlled GPIO expander buffer supporting both input capture and output drive at 5 V logic levels. Use Value: Provides ±24 mA drive strength to directly sink/source LED indicators or relay coils, eliminating external drivers in low-channel-count applications. |
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 |
|---|---|---|---|
| SN74LVC1T45DCKR | TSSOP6 package, identical electrical specs, but rated only to +85 °C (not +125 °C); no IOFF spec beyond 85 °C | Suitable for commercial-grade consumer electronics, not automotive or industrial ambient environments | Select when operating temperature ≤ +85 °C and cost sensitivity outweighs extended thermal qualification |
| 74LVCH1T45GF,132 | Includes active bus-hold circuitry on A/B ports; otherwise identical pinout, package, and voltage specs | Eliminates external pull-up/down resistors on floating I/O lines in systems with intermittent connectivity | Select when unused data lines may float during power sequencing or sleep modes, requiring deterministic logic states without external components |
Compared with SN74LVC1T45DCKR, 74LVC1T45GF,132 offers guaranteed +125 °C operation and validated IOFF behavior across full temperature range-critical for under-hood automotive use. Versus 74LVCH1T45GF,132, it omits bus-hold but reduces input leakage and dynamic power, favoring ultra-low-power always-on sensing nodes.
Availability
74LVC1T45GF,132 is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control module, and server baseboard management applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVC1T45GF,132 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 delivering high-performance, reliable components for automotive, industrial, and consumer markets, with leadership in logic, MOSFETs, and ESD protection.
The 74LVC series targets low-voltage, low-power digital interfacing in space-constrained and thermally demanding applications, emphasizing robustness, wide supply tolerance, and seamless integration into mixed-signal systems.
FAQ
What is the maximum allowable voltage difference between VCC(A) and VCC(B)?
The datasheet specifies independent absolute maximum ratings: VCC(A) and VCC(B) each tolerate –0.5 V to +6.5 V relative to GND. No differential limit is defined-operation is valid for any combination within those bounds (e.g., VCC(A) = 1.2 V, VCC(B) = 5.5 V). This enables direct 1.2 V ↔ 5.5 V translation without intermediate rails.
Does 74LVC1T45GF,132 support I²C bus translation without external components?
Yes-it supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C translation bidirectionally with no external pull-ups required on the A or B side, provided external pull-ups are placed on each bus segment per I²C specification. Propagation delay (<10 ns) and rise/fall time compatibility ensure timing compliance.
How does IOFF behave when only one supply rail is powered?
When either VCC(A) or VCC(B) = 0 V (GND), both A and B ports enter high-impedance OFF-state with leakage ≤ ±2 μA across –40 °C to +125 °C. This prevents current backflow into unpowered domains-verified in Table 10 static characteristics under "IOFF power-off leakage current" conditions.
Can DIR be driven from a different voltage domain than VCC(A)?
No-DIR is strictly referenced to VCC(A), as stated in Section 1 and Table 3. Driving DIR from a voltage outside the VCC(A) domain violates the absolute maximum input voltage rating (VI ≤ VCC(A) + 0.5 V) and risks latch-up or permanent damage. DIR must be sourced from the same rail as VCC(A).
74LVC1T45GF,132 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XFDFN
74LVC1T45GF,132 FAQ
1.How can I place an order for 74LVC1T45GF,132 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1T45GF,132 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 74LVC1T45GF,132 reliable?
The price and inventory of 74LVC1T45GF,132 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1T45GF,132 is usually 5 days.
3.What payment methods are accepted for 74LVC1T45GF,132?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1T45GF,132 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1T45GF,132?
74LVC1T45GF,132 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1T45GF,132 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 74LVC1T45GF,132?
For technical support, including 74LVC1T45GF,132 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1T45GF,132 requirements.
6.How does Aetrix verify that 74LVC1T45GF,132 is sourced from the original manufacturer or authorized distributors?
All 74LVC1T45GF,132 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 74LVC1T45GF,132 meets industry standards.
7.What is the process for return or replacement of 74LVC1T45GF,132?
All 74LVC1T45GF,132 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1T45GF,132, 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 74LVC1T45GF,132 part is unused and in its original packaging.
Return procedure for 74LVC1T45GF,132:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC1T45GF,132 Tags
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