SN74LVC1T45DBVR
| Parameters | |
|---|---|
| Output Type | Tri-State, Non-Inverted |
| Number of Circuits | 1 |
| Data Rate | 420Mbps |
| Supplier Device Package | SOT-23-6 |
| Channel Type | Bidirectional |
| Output Signal | - |
| Input Signal | - |
| Translator Type | Voltage Level |
| Voltage - VCCA | 1.65 V ~ 5.5 V |
| Voltage - VCCB | 1.65 V ~ 5.5 V |
| Channels per Circuit | 1 |
| Features | - |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | 74LVC1T45 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Series | 74LVC |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | SOT-23-6 |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
SN74LVC1T45DBVR bidirectional voltage-level translator chip 1 circuit 1 channel 420Mbps
The SN74LVC1T45DBVR is a single-bit, dual-supply, bidirectional voltage-level translator from Texas Instruments, designed for seamless and flexible signal conversion between different voltage domains without the need for a direction control pin. It features two independent configurable power-supply rails: the A port operates from 1.65 V to 5.5 V, and the B port operates from 1.65 V to 5.5 V, allowing for universal bidirectional translation between any voltage levels within this range (e.g., 1.8 V ↔ 3.3 V, 2.5 V ↔ 5 V). Its innovative auto-direction sensing circuitry determines the data flow direction based on the logic levels present on the I/O pins, simplifying system design by eliminating the need for a separate direction control signal.
This translator supports full bidirectional voltage translation with data rates up to 100 Mbps (push-pull) and 20 Mbps (open-drain), making it suitable for a variety of communication protocols. It features a typical propagation delay of 4.2 ns, ensuring minimal signal latency. The device is characterized by a very low static power consumption, typically less than 5 µA. All I/O pins are tolerant to voltages up to 5.5 V, providing robustness during power sequencing events.
SN74LVC1T45DBVR level translator Applications
● Microcontroller/Processor Interfacing: Connects low-voltage core logic (e.g., 1.8V) to higher-voltage peripherals, sensors, or memory (e.g., 3.3V or 5V) in embedded systems.
● I2C, SMBus, and 1-Wire Level Shifting: Provides automatic bidirectional voltage translation for open-drain communication buses, simplifying bus expansion and sensor networks.
● Sensor and Module Integration: Bridges the voltage gap between modern low-power sensors and legacy system power rails in IoT devices, wearables, and industrial modules.
● General-Purpose GPIO Expansion: Enables safe and automatic voltage translation for general-purpose I/O lines in mixed-voltage FPGA, ASIC, or multi-board systems.
Alternative bidirectional voltage level shifter Models
1. Nexperia 74LVC1T45GW: A functionally identical single-bit bidirectional voltage-level translator with auto-direction control, available in a SOT353 (SC-88A) package.
2. onsemi NLSX4373: A single-bit configurable dual-supply translator supporting voltages from 1.2V to 5.5V with similar auto-direction sensing capabilities.
3. Diodes Incorporated PI4ULS3V204: A dual-channel auto-direction sensing translator optimized for high-speed (up to 100 Mbps) push-pull applications like SPI and SDIO.
