Partlist Part Value C1 100n C2 100n C3 100n C4 100n C5 100n C6 100n C7 100n C8 100n C9 100n C10 100n C11 100n C12 100n C13 100n C14 100n C15 100n C16 100n C17 100n C18 100n C19 100n C20 100n C21 100n C22 100n C23 100n C24 47u IC1 74ALS374 IC2 74ALS138 IC3 74ALS688 IC4 74ALS257 IC5 74ALS257 IC6 74ALS257 IC7 74ALS257 IC8 74ALS257 IC9 74LS245 (*) IC10 74ALS166 IC11 74ALS273 IC12 74ALS175 IC13 74ALS86 IC14 74ALS74 IC15 74LS04 (*) IC16 74ALS00 IC17 74ALS32 IC18 41464 IC19 41464 IC21 74LS04 (*) IC22 CRTC6545/6845 IC23 74ALS00 IC24 27C128P U$1 CSABUS CSABUS CSABUS csa 1 X1 9-pin D-Sub female (*) 'LS and not 'ALS for timing requirements.