74LVT245BB中文资料Octal Buffer/Line Driver with 3 State Outputs数据手册Diodes规格书

描述 Description

The 74LVT245BB is an octal transceiver 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) pin can be used to disable the device so the buses effectively are isolated.
The device is designed for operation with a power supply range of 2.7V to 3.6V.
The inputs are tolerant to 5.5V allowing this device to be used in a mixed voltage environment. The device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output preventing damaging current backflow when the device is powered down.

特性 Features

•Supply Voltage Range from 1.65V to 3.6V
•Sinks or Sources 24 ma at VCC = 3V
•CMOS Low Power Consumption
•OFF Supports Partial -Power Down Operation
•Inputs or Outputs Accept up to 5.5V
•Inputs Can Be Driven by 3.3V or 5V Allowing for Mixed Voltage Applications
•Schmitt Trigger Action at All Inputs
•Typical VOLP (Quiet Output Ground Bounce) Less than 0.8V with VCC = 3.3V and TA = +25°C
•Typical VOHV (Quiet Output dynamic VOH) Greater than 2.0V with VCC = 3.3V and TA = +25°C
•ESD Protection Tested per JESD 22•Exceeds 200-V Machine Model (A115)
•Exceeds 2000-V Human Body Model (A114)
•Exceeds 1000-V Charged Device Model (C101)

•Latch-Up Exceeds 250mA per JESD 78, Class I
•Totally Lead-Free & Fully RoHS compliant
•Halogen and Antimony Free.“Green” Device

应用 Application

•General Purpose Logic
•Bus Driving
•Power Down Signal Isolation
•Wide Array of Products Such as:

•PCs, Notebooks, Netbooks, Ultrabooks, Networking Computer Peripherals, Hard Drives, CD/DVD ROM, TV, DVD, DVR, Set Top Box

简介

74LVT245BB属于集成电路（IC）的缓冲器驱动器接收器收发器。由制造生产的74LVT245BB缓冲器，驱动器，接收器，收发器逻辑缓冲器、驱动器、接收器和收发器允许隔离对某个电路的逻辑信号的访问，以用于另一电路。缓冲器将其输入信号（不变或反相）传递到其输出，并可能用于清除弱信号或驱动负载。在布尔逻辑仿真器中，缓冲器主要用于增加传播延迟。逻辑接收器和收发器允许在数据总线之间进行隔离通信。