name:         74AS877
function:     8bit Universal Transceiver Port Controller
package:      DIP,24
manufacturer: TI
added-by:     Long john Silicon
comment:      A-to-B, B-to-A, Shift, 3-state

    +--()--+
 S0 | 1  24| VCC
 S1 | 2  23| CLK
 S2 | 3  22| SERIN
 A1 | 4  21| B1
 A2 | 5  20| B2
 A3 | 6  19| B3
 A4 | 7  18| B4
 A5 | 8  17| B5
 A6 | 9  16| B6
 A7 |10  15| B7
 A8 |11  14| B8
GND |12  13| Q8
    +------+

This information was added by a third party and may be incorrect.

This pinout came from the Chipdir:
http://www.chipdir.org/