General description

The 74LVTH322245 is a high-performance BiCMOS product designed for VCC operation at 3.3 V. The 74LVTH322245 is designed with 30 Ω series resistance in both the HIGH and LOW states of the output. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus receivers/transmitters. The 74LVTH322245 is a 32-bit transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The device features four output enable (nOE) inputs for easy cascading and four send/receive (nDIR) inputs for direction control. Pin nOE controls the outputs so that the buses are effectively isolated. Bus hold on data inputs eliminates the need for external pull-up resistors to hold unused inputs.

Features

■ 32-bit 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

■ Outputs include series resistance of 30 Ω making external resistors unnecessary

■ Power-up 3-state

■ No bus current loading when output is tied to 5 V bus

■ Latch-up protection:

◆ JESD78 Class II level A exceeds 500 mA

■ ESD protection:

◆ HBM JESD22-A114E exceeds 2000 V

◆ MM JESD22-A115-A exceeds 200 V