Overview
The SN74AVC1T45DCKR is a single-bit, dual-supply, noninverting bus transceiver produced by Texas Instruments. This device is designed for asynchronous communication between two data buses and features a fully configurable dual-rail design. It operates over a wide power-supply range from 1.08V to 3.6V for both VCCA and VCCB, enabling universal low-voltage, bidirectional translation between various voltage nodes such as 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. The device is packaged in a 6-pin SOT-SC70 package and is RoHS compliant.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | SOT-SC70 (DCK) | 6 pins |
| Operating Temperature Range | -40°C to 85°C | |
| Supply Voltage Range (VCCA/VCCB) | 1.08V to 3.6V | |
| Output Drive Current | ±12mA at 3.3V | |
| I/O Tolerance | 4.6V tolerant | |
| Propagation Delay | Typically 2.8ns | |
| Data Rates | Up to 500Mbps (1.08V to 3.3V translation) | |
| ESD Protection | ±2000V Human Body Model, 200V Machine Model, ±1000V Charged-Device Model |
Key Features
- Available in the Texas Instruments NanoFree™ 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.
- Ioff supports partial-power-down mode operation.
- Latch-up performance exceeds 100mA per JESD 78, Class II.
- ESD protection exceeds JESD 22 standards.
Applications
- Personal electronic devices
- Industrial applications
- Enterprise systems
- Telecom equipment
Q & A
- What is the SN74AVC1T45DCKR used for?
The SN74AVC1T45DCKR is used for asynchronous communication between two data buses, providing bidirectional voltage level translation between different voltage nodes.
- What is the operating voltage range for the SN74AVC1T45DCKR?
The device operates with supply voltages ranging from 1.08V to 3.6V for both VCCA and VCCB.
- What package type does the SN74AVC1T45DCKR come in?
The device is packaged in a 6-pin SOT-SC70 package.
- Is the SN74AVC1T45DCKR RoHS compliant?
- What are the typical data rates supported by the SN74AVC1T45DCKR?
The device supports data rates up to 500Mbps for 1.08V to 3.3V translation and lower rates for other voltage translations.
- What is the purpose of the DIR input in the SN74AVC1T45DCKR?
The DIR input controls the direction of data transmission between the A and B ports.
- Does the SN74AVC1T45DCKR support partial-power-down mode?
- What is the ESD protection level of the SN74AVC1T45DCKR?
The device has ESD protection exceeding ±2000V Human Body Model, 200V Machine Model, and ±1000V Charged-Device Model.
- What are the typical applications of the SN74AVC1T45DCKR?
The device is used in personal electronic devices, industrial applications, enterprise systems, and telecom equipment.
- What is the operating temperature range of the SN74AVC1T45DCKR?
The device operates over a temperature range of -40°C to 85°C.
