General Description

The LVT32244 and LVTH32244 contain thirty-two noninverting buffers with 3-STATE outputs designed to be employed as a memory and address driver, clock driver, or bus oriented transmitter/receiver. The device is nibble controlled. Individual 3-STATE control inputs can be shorted together for 8-bit, 16-bit, or 32-bit operation.

The LVTH32244 data inputs include bushold, eliminating the need for external pull-up resistors to hold unused inputs.

These buffers and line drivers are designed for low-voltage (3.3V) VCC applications, but with the capability to provide a TTL interface to a 5V environment. The LVT32244 and LVTH32244 are fabricated with an advanced BiCMOS technology to achieve high speed operation similar to 5V ABT while maintaining a low power dissipation

Features

■ Input and output interface capability to systems at 5V VCC

■ Bushold data inputs eliminate the need for external pull-up resistors to hold unused inputs (74LVTH32244), also available without bushold feature (74LVT32244).

■ Live insertion/extraction permitted

■ Power Up/Down high impedance provides glitch-free bus loading

■ Outputs source/sink −32 mA/+64 mA

■ ESD performance:

   Human-body model > 2000V

   Machine model > 200V

   Charged-device model > 1000V

■ Packaged in plastic Fine-Pitch Ball Grid Array (FBGA) (Preliminary)