Overview
The SN74AVC4T245RSVR, produced by Texas Instruments, is a 4-bit dual-supply noninverting bidirectional voltage level translation device. This component is designed to facilitate asynchronous communication between two data buses operating at different voltage levels. It supports universal low-voltage bidirectional translation between various voltage nodes, including 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. The device is optimized for operation with supply voltages ranging from 1.4V to 3.6V, although it can function with voltages as low as 1.2V.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| VCCA/VCCB Range | Acceptable supply voltage range for A and B ports | 1.2V to 3.6V |
| Maximum Data Rate | Data rate for translation from 1.8V to 3.3V | 380 Mbps |
| Input/Output Voltage Tolerance | Maximum voltage tolerance for I/Os | 4.6V |
| Package Types | Available package options | SOIC-16, TVSOP-16, TSSOP-16, UQFN-16 |
| ESD Protection | Human-Body Model (HBM) ESD protection | 8000V |
| Latch-Up Performance | Latch-up current per JESD 78, Class II | 100 mA |
| Thermal Resistance (Junction-to-Ambient) | Thermal resistance for different packages | 85.5°C/W (SOIC), 126.0°C/W (TVSOP), 112.0°C/W (TSSOP), 146.9°C/W (UQFN) |
Key Features
- Fully Configurable Dual-Rail Design: Allows each port to operate over the full 1.2V to 3.6V power-supply range.
- Universal Low-Voltage Bidirectional Translation: Supports translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes.
- High-Speed Data Rates: Maximum data rates up to 380 Mbps for translation from 1.8V to 3.3V.
- I/O Voltage Tolerance: I/Os are 4.6V tolerant.
- Partial Power-Down Mode: Ioff circuitry supports partial power-down mode operation, preventing damaging current backflow.
- ESD Protection: Exceeds JESD 22 standards with 8000V Human-Body Model (HBM) protection.
- Latch-Up Performance: Exceeds 100 mA per JESD 78, Class II.
Applications
- Level-Translation Applications: Ideal for interfacing devices or systems operating at different interface voltages.
- Personal Electronics: Suitable for use in various personal electronic devices.
- Industrial Applications: Used in industrial settings where different voltage levels are required.
- Enterprise and Telecom: Applicable in enterprise and telecom environments for voltage translation needs.
Q & A
- What is the voltage range supported by the SN74AVC4T245RSVR?
The device supports a voltage range of 1.2V to 3.6V for both VCCA and VCCB.
- What are the maximum data rates for different voltage translations?
The maximum data rates are up to 380 Mbps for 1.8V to 3.3V translation, 200 Mbps for translations below 1.8V to 3.3V, and lower rates for other voltage translations.
- What is the I/O voltage tolerance of the SN74AVC4T245RSVR?
The I/Os are 4.6V tolerant.
- Does the SN74AVC4T245RSVR support partial power-down mode?
Yes, the device supports partial power-down mode using Ioff circuitry.
- What is the ESD protection level of the SN74AVC4T245RSVR?
The device exceeds JESD 22 standards with 8000V Human-Body Model (HBM) protection.
- What are the typical applications of the SN74AVC4T245RSVR?
It is used in level-translation applications, personal electronics, industrial settings, and enterprise and telecom environments..
- How does the direction-control (DIR) input work?
The DIR input determines the direction of data transmission between the A and B ports. A high on DIR allows data transmission from A to B, while a low allows data transmission from B to A..
- What is the purpose of the output-enable (OE) input?
The OE input activates or deactivates the output ports. When OE is high, both ports are in the high-impedance state..
- What are the available package options for the SN74AVC4T245RSVR?
The device is available in SOIC-16, TVSOP-16, TSSOP-16, and UQFN-16 packages..
- Is the SN74AVC4T245RSVR RoHS compliant?
Yes, the device is RoHS compliant..
