74LVT2245DB数据手册集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF

描述 Description

The 74LVT2245; 74LVTH2245 is a high-performance BiCMOS product designed for VCC operation at 3.3 V.
This device is an octal transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The control function implementation minimizes external timing requirements. The device features an output enable input (OE) for easy cascading and a direction input (DIR) for direction control.
The 74LVT2245; 74LVTH2245 is designed with 30 Ω series resistance in both the HIGH-state and LOW-state of the output. This design reduces line noise in applications such as memory address drivers, clock drivers and bus transceivers and transmitters.

特性 Features

• 30 Ω output termination resistors
• Octal bidirectional bus interface
• 3-state buffers
• Output capability: +12 mA and -12 mA
• TTL input and output switching levels
• Input and output interface capability to systems at 5 V supply
• Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs
• Live insertion and extraction permitted
• Power-up 3-state
• No bus current loading when output is tied to 5 V bus
• Latch-up protection:
• JESD78: exceeds 500 mA

• ESD protection:
• MIL STD 883 method 3015: exceeds 2000 V
• Machine model: exceeds 200 V