54LVTH244A Octal Buffer/Driver, 8-bit, 3.3V ABT				54LVTH244A Information - Product Datasheet - Product Flow - Back to Logic

Features

• 3.3V ABT octal buffers/drivers with 3-state outputs
• RAD-PAK® radiation-hardened against natural space radiation
• Package:
  • 20 Pin RAD-PAK® flat package
• Operating temperature range:
  • -55 to 125°C
• Supports mixed-mode signal operation
  • -5V Input and Output Voltages with 3.3V VCC
• Supports mixed-mode signal operation
  • 5V input and output voltages with 3.3V VCC
• Supports unregulated battery operation down to 2.7V
• Typical VOLP (output ground bounce) < 0.8V at VCC=3.3V, TA=25°C
• Supports live insertion
• Bus-hold data inputs eliminate the need for external pullup resistors

Description

Maxwell Technologies’ 54LVTH244A octal buffers/drivers micro-circuit is housed in a Rad-Pak® package. The 54LVTH244A is designed specifically for low voltage (3.3V) VCC operation, but with the capability to provide a TTL interface to a 5V system environment.

The 54LVTH244A is organized as two 4-bit drivers with separate output enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high impedance state. The 54LVTH244A active bus hold circuitry is provided to prevent floating data inputs at a valid logic level and to eliminate the need for pullup resistors.

Maxwell Technologies' patented RAD-PAK® packaging technology incorporates radiation shielding in the microcircuit package. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or a space mission. This product is available with packaging and screening up to Class S.