Overview: SN74LVC4T45 Voltage-Level Translator with Direction Control
The SN74LVC4T45 from Texas Instruments is a 4-bit dual-supply bus transceiver designed to provide high-performance voltage-level translation between different logic levels. It supports bidirectional data transfer with a dedicated direction control pin (DIR) to determine data flow. This makes it a powerful solution for interfacing different voltage domains in embedded, industrial, and consumer applications.
It features dual-supply operation, enabling direct interfacing between 1.65V to 5.5V systems. With its low power CMOS technology and high-speed switching capability, this device is ideal for complex systems requiring energy-efficient logic translation. The DGV (TVSOP) package further enhances design flexibility in space-constrained environments.
🔥 Best-Selling Products
Technical Specifications Table
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VCCA Supply Voltage | 1.65 | 5.5 | V |
| VCCB Supply Voltage | 1.65 | 5.5 | V |
| Input Voltage | 0 | 5.5 | V |
| Direction Control | Yes (DIR pin) | ?C | |
| Max Data Rate | 380 Mbps | ?C | |
| Package Type | DGV (TVSOP-14) | ?C | |
| Operating Temperature | -40 | 125 | ??C |
Why SN74LVC4T45 is a Superior Logic Translator
Conventional level shifters often struggle with speed, compatibility, and directionality. The SN74LVC4T45 stands out by enabling fast, bidirectional voltage-level shifting between multiple voltage domains, which is vital in modern mixed-signal system designs. Designers appreciate its robust DIR pin control and wide supply compatibility, minimizing the need for external components. Available through IC Manufacturer, this solution is backed by the proven quality and reliability of Texas Instruments logic devices.
Extended Electrical Characteristics
| Feature | Specification |
|---|---|
| Logic Function | 4-Bit Bus Transceiver with Direction Control |
| Bidirectional Translation | Enabled with DIR pin |
| Propagation Delay (3.3V) | 1.6 ns |
| Static Drive Capability | ??24 mA |
| Quiescent Current | Low Static Power |
| Temperature Range | ?C40??C to 125??C |
Typical Applications
- Voltage translation in embedded processors and FPGAs
- Peripheral bridging in consumer electronics
- Interfacing mixed-voltage I/Os in industrial controllers
Frequently Asked Questions (FAQ)
How does the DIR pin control the data direction?
The DIR pin determines the direction of data flow between port A and port B. When DIR is high, data flows from A to B; when low, it flows from B to A, allowing flexible bidirectional operation.
🌟 Featured Products
-
“Buy MAX9312ECJ+ Precision Voltage Comparator in DIP Package for Reliable Performance”
-
QCC-711-1-MQFN48C-TR-03-1 Bluetooth Audio SoC with MQFN48C Package
-
0339-671-TLM-E Model – High-Performance TLM-E Package for Enhanced Functionality
-
1-1415898-4 Connector Housing, Electrical Wire-to-Board, Receptacle, Packaged
Can this device interface 3.3V logic to 1.8V systems?
Yes, the dual-supply design allows VCCA and VCCB to be independently set, supporting translation between 3.3V and 1.8V systems or any combination within the 1.65V?C5.5V range.
Is the SN74LVC4T45 suitable for high-speed data transmission?
Absolutely. It supports data rates up to 380 Mbps, making it highly suitable for high-speed digital interfaces across mixed-voltage systems.
📩 Contact Us
What packaging is offered and how compact is it?
The DGV (TVSOP-14) package provides a small footprint while maintaining functionality, ideal for space-constrained PCBs in embedded and consumer designs.
What??s the primary advantage over passive level shifters?
Unlike passive solutions, the SN74LVC4T45 offers active control, precise voltage-level compatibility, and directionality, which significantly enhances signal integrity and system reliability.