7416657 Dual 8-bit 3-state noninverting bus transceiver with parity generator/checker. +----------+ /1OE |1 +--+ 56| 1DIR |2 55| 1O//E /1ERR |3 54| 1PAR GND |4 53| GND 1A0 |5 52| 1B0 1A1 |6 51| 1B1 VCC |7 50| VCC 1A2 |8 49| 1B2 1A3 |9 48| 1B3 1A4 |10 47| 1B4 GND |11 46| GND 1A5 |12 45| 1B5 1A6 |13 44| 1B6 1A7 |14 7416 43| 1B7 2A0 |15 657 42| 2B0 2A1 |16 41| 2B1 2A2 |17 40| 2B2 GND |18 39| GND 2A3 |19 38| 2B3 2A4 |20 37| 2B4 2A5 |21 36| 2B5 VCC |22 35| VCC 2A6 |23 34| 2B6 2A7 |24 33| 2B7 GND |25 32| GND /2ERR |26 31| 2PAR |27 30| 2O//E /2OE |28 29| 2DIR +----------+ [This information is part of the GIICM]