7416474
Dual 9-bit 3-state noninverting registered transceiver.

     +----------+
/1OB |1  +--+ 56| /1OA
1CAB |2       55| 1CBA
 1A1 |3       54| 1B1
 GND |4       53| GND
 1A2 |5       52| 1B2
 1A3 |6       51| 1B3
 VCC |7       50| VCC
 1A4 |8       49| 1B4
 1A5 |9       48| 1B5
 1A6 |10      47| 1B6
 GND |11      46| GND
 1A7 |12      45| 1B7
 1A8 |13      44| 1B8
 1A9 |14 7416 43| 1B9
 2A1 |15  474 42| 2B1
 2A2 |16      41| 2B2
 2A3 |17      40| 2B3
 GND |18      39| GND
 2A4 |19      38| 2B4
 2A5 |20      37| 2B5
 2A6 |21      36| 2B6
 VCC |22      35| VCC
 2A7 |23      34| 2B7
 2A8 |24      33| 2B8
 GND |25      32| GND
 2A9 |26      31| 2B9
2CAB |27      30| 2CBA
/2OB |28      29| /2OA
     +----------+

[This information is part of the GIICM]