ΜPD765A

PD765A/B

The uPD765 is Floppy Disc Controller (FDC) IC.

Pinout:

RESET RD WR CS D/S D0 D1 D2 D3 D4 D5 D6 D7 DRQ DAQ TC IDX INT CLK (0V) GND

1 °       40 2         39 3         38 4         37 5         36 6         35 7         34 8         33 9         32 10        31 11        30 12        29 13        28 14        27 15        26 16        25 17        24 18        23 19        22 20        21

VCC (+5V) RW/SEEK LCT/DIR FR/STP HDL RDY WP/TS FLT/TR0 PS0 PS1 WDA US0 US1 HD MFM WE VCO/SYNC RDD RDW WCK