DESCRIPTION
The 74ALVT162821 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. It is designed for VCC operation at 2.5V or 3.3V with I/O compatibility to 5V.
   
FEATURES
• Outputs include series resistance of 30Ω making external
    termination resistors unnecessary
• 20-bit positive-edge triggered register
• 5V I/O Compatible
• Multiple VCC and GND pins minimize switching noise
• Live insertion/extraction permitted
• Power-up reset
• Power-up 3-State
• Output capability +12mA/-12mA
• Latch-up protection exceeds 500mA per Jedec Std 17
• ESD protection exceeds 2000V per MIL STD 883 Method 3015
    and 200V per Machine Model
• Bus hold data inputs eliminate the need for external pull-up
    resistors to hold unused inputs