Overview
The SN74AVC1T45DCKTG4, produced by Texas Instruments, is a single-bit noninverting bus transceiver designed for universal low-voltage, bidirectional translation between various voltage nodes. This device operates with two separate configurable power-supply rails, allowing each port to function over a wide voltage range from 1.2V to 3.6V. It is particularly useful for asynchronous communication between two data buses, making it a versatile component in modern electronic systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 6-TSSOP, SC-88, SOT-363 (SC-70-6 for DCKR) |
| Number of Pins | 6 |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage (VCCA/VCCB) | 1.2V to 3.6V |
| Output Current | ±12mA at 3.3V |
| Propagation Delay | 2.8ns (typical) |
| Data Rate | Up to 500Mbps (depending on voltage translation) |
| ESD Protection | ±2000V Human Body Model, 200V Machine Model, ±1000V Charged-Device Model |
Key Features
- Fully configurable dual-rail design allowing each port to operate over the full 1.2V to 3.6V power-supply range
- VCC isolation feature – if either VCC input is at GND, then both ports are in the high-impedance state
- DIR input circuit referenced to VCCA
- I/Os are 4.6V tolerant
- Ioff supports partial-power-down mode operation
- Available in the Texas Instruments NanoFree™ package
- Latch-up performance exceeds 100mA per JESD 78, Class II
Applications
The SN74AVC1T45DCKTG4 is suitable for a wide range of applications requiring low-voltage, bidirectional translation between different voltage domains. These include:
- Asynchronous communication between two data buses in mixed-voltage systems
- Low-power and high-speed data transmission in embedded systems, consumer electronics, and industrial control systems
- Partial-power-down applications where Ioff circuitry is necessary to prevent current backflow
Q & A
- What is the primary function of the SN74AVC1T45DCKTG4?
The primary function is to act as a single-bit noninverting bus transceiver for bidirectional translation between different voltage nodes.
- What is the operating voltage range for the SN74AVC1T45DCKTG4?
The device operates with supply voltages (VCCA/VCCB) ranging from 1.2V to 3.6V.
- What is the maximum data rate supported by the SN74AVC1T45DCKTG4?
The maximum data rate is up to 500Mbps, depending on the voltage translation.
- What is the VCC isolation feature in the SN74AVC1T45DCKTG4?
If either VCC input is at GND, both ports are in the high-impedance state.
- Is the SN74AVC1T45DCKTG4 ESD protected?
- What package types are available for the SN74AVC1T45DCKTG4?
The device is available in 6-TSSOP, SC-88, and SOT-363 (SC-70-6) packages.
- What is the propagation delay of the SN74AVC1T45DCKTG4?
The typical propagation delay is 2.8ns.
- Is the SN74AVC1T45DCKTG4 suitable for partial-power-down applications?
- What is the output current capability of the SN74AVC1T45DCKTG4?
The device can drive up to ±12mA at 3.3V.
- What is the operating temperature range of the SN74AVC1T45DCKTG4?
The operating temperature range is -40°C to 85°C.
