Overview
The SN74AXC8T245RJWR is an 8-bit non-inverting bus transceiver manufactured by Texas Instruments. It is designed to address voltage level mismatches between devices operating at the latest voltage nodes (0.7 V, 0.8 V, and 0.9 V) and those operating at industry-standard voltage nodes (1.8 V, 2.5 V, and 3.3 V). This device is particularly useful in applications requiring asynchronous communication between data buses. It features two independent power rails (VCCA and VCCB) that can operate as low as 0.65 V, making it suitable for low-power and mixed-voltage environments. The SN74AXC8T245RJWR is ideal for use in industrial automation, consumer electronics, and automotive electronics, where reliable voltage level translation is critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Bits | 8 | bit | Non-inverting |
| Supply Voltage (VCCA) | 0.65 to 3.6 | V | |
| Supply Voltage (VCCB) | 0.65 to 3.6 | V | |
| Operating Temperature | -40 to +125 | °C | |
| Package | VQFN-24 | ||
| Data Rate | Up to 380 Mbps | From 1.8 V to 3.3 V | |
| Ioff (Partial Power Down) | Supported | Disables outputs during power-down | |
| Output Type | 3-State |
Key Features
- Supports voltage level translation between 0.65 V and 3.6 V.
- Dual power rails (VCCA and VCCB) for flexible voltage operation.
- Asynchronous communication between data buses.
- 3-State outputs for bus isolation.
- Partial power-down (Ioff) for reduced power consumption.
- High-speed data transfer up to 380 Mbps.
Applications
The SN74AXC8T245RJWR is widely used in applications requiring voltage level translation and data bus communication. In industrial automation, it ensures reliable signal transmission between devices operating at different voltage levels. In consumer electronics, it facilitates communication between low-power and standard-voltage components. In automotive electronics, it supports robust data transfer in mixed-voltage environments, enhancing system reliability and performance.
Q & A
1. What is the primary function of the SN74AXC8T245RJWR?
It is an 8-bit non-inverting bus transceiver designed for voltage level translation between devices operating at different voltage levels.
2. What is the operating voltage range of this device?
It operates with supply voltages ranging from 0.65 V to 3.6 V on both VCCA and VCCB rails.
3. What is the maximum data rate supported?
It supports data rates up to 380 Mbps when translating from 1.8 V to 3.3 V.
4. Does it support partial power-down mode?
Yes, it features Ioff support, which disables outputs during power-down to minimize power consumption.
5. What is the package type of the SN74AXC8T245RJWR?
It is available in a VQFN-24 package.
6. What are the typical applications of this device?
It is used in industrial automation, consumer electronics, and automotive electronics for voltage level translation and data bus communication.
7. How does the direction control input work?
The direction control inputs (DIR1 and DIR2) determine whether data is transmitted from A to B or from B to A.
8. What is the purpose of the output enable (OE) input?
The OE input is used to disable the outputs, effectively isolating the bus.
9. Is this device suitable for low-power applications?
Yes, its ability to operate at low voltages and support partial power-down makes it ideal for low-power applications.
10. What is the operating temperature range?
It operates reliably within a temperature range of -40°C to +125°C.
