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