Overview
The SN74AVC1T45DCKRE4, produced by Texas Instruments, is a single-bit noninverting bus transceiver designed for asynchronous communication between two data buses. This device operates with two separate configurable power-supply rails, allowing each port to function over a wide voltage range from 1.08V to 3.6V. The SN74AVC1T45 is particularly useful for universal low-voltage, bidirectional translation between various voltage nodes such as 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. The device features a direction-control (DIR) input that determines the direction of data transmission between the A and B ports.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | SOT-SC70 (DCK) | 6 pins |
| Operating Temperature Range | -40°C to 85°C | |
| Voltage - VCCA | A-port supply voltage | 1.08V to 3.6V |
| Voltage - VCCB | B-port supply voltage | 1.08V to 3.6V |
| Output Drive | At 3.3V | ±12mA |
| Input/Output Tolerance | 4.6V tolerant | |
| Data Rate | Maximum data rates | 500Mbps (1.08V to 3.3V translation), 320Mbps (<1.8V to 3.3V translation), etc. |
| Propagation Delay | Typically 2.8ns | |
| ESD Protection | ±2000V Human Body Model, 200V Machine Model, ±1000V Charged-Device Model |
Key Features
- Available in the Texas Instruments NanoFree™ package, which uses the die as the package.
- Fully configurable dual-rail design allowing each port to operate over the full 1.08V 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.
- ±12mA output drive at 3.3V.
- I/Os are 4.6V tolerant.
- Ioff supports partial-power-down mode operation.
- High data rates with various voltage translations (e.g., 500Mbps for 1.08V to 3.3V translation).
- Latch-up performance exceeds 100mA per JESD 78, Class II.
- ESD protection exceeds JESD 22 standards.
Applications
The SN74AVC1T45DCKRE4 is suitable for a wide range of applications, including:
- Personal electronics
- Industrial systems
- Enterprise equipment
- Telecommunications devices
Its versatility in voltage translation and high-speed data transfer makes it an ideal component for various electronic systems requiring asynchronous communication between different voltage domains.
Q & A
- What is the operating voltage range for the SN74AVC1T45DCKRE4?
The device operates with VCCA/VCCB as low as 1.08V and up to 3.6V.
- What is the purpose of the DIR input in the SN74AVC1T45DCKRE4?
The DIR input determines the direction of data transmission between the A and B ports.
- What is the maximum data rate supported by the SN74AVC1T45DCKRE4?
The device supports up to 500Mbps data rate for 1.08V to 3.3V translation.
- Is the SN74AVC1T45DCKRE4 ESD protected?
- What is the propagation delay of the SN74AVC1T45DCKRE4?
The propagation delay is typically 2.8ns.
- Can the SN74AVC1T45DCKRE4 operate in partial-power-down mode?
- What is the output drive capability of the SN74AVC1T45DCKRE4 at 3.3V?
- What package types are available for the SN74AVC1T45DCKRE4?
- Is the SN74AVC1T45DCKRE4 RoHS compliant?
- What are the typical applications of the SN74AVC1T45DCKRE4?
