DESCRIPTION
The 74ABT899 is a 9-bit to 9-bit parity transceiver with separate transparent latches for the A bus and B bus. Either bus can generate or check parity.
   
FEATURES
• Symmetrical (A and B bus functions are identical)
• Selectable generate parity or ”feed-through” parity for A-to-B and
    B-to-A directions
• Independent transparent latches for A-to-B and B-to-A directions
• Selectable ODD/EVEN parity
• Continuously checks parity of both A bus and B bus latches as
    ERRA and ERRB
• Ability to simultaneously generate and check parity
• Can simultaneously read/latch A and B bus data
• Output capability: +64 mA/–32mA
• Latch-up protection exceeds 500mA per Jedec JC40.2 Std 17
• ESD protection exceeds 2000 V per MIL STD 883 Method 3015
    and 200 V per Machine Model
• Power up 3-State
• Power-up reset
• Live insertion/extraction permitted