SN74ABT245B-EP中文资料具有三态输出的增强型产品八路总线收发器数据手册TI规格书

描述 Description

This octal bus transceiver is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\\ input can be used to disable the device so the buses are effectively isolated.
To ensure the high-impedance state during power up or power down, OE\\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.

特性 Features

• Controlled Baseline
• Extended Temperature Performance of –55°C to 125°C
• Enhanced Product-Change Notification
• Typical VOLP (Output Ground Bounce)    CC = 5 V, TA = 25°C
• High-Drive Outputs (–24-mA IOH, 32-mA IOL)
• ESD Protection Exceeds JESD 22
• 200-V Machine Model (A115-A)
Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.