HD63266F

********** —TOP VIEW— C-MOS FDC (FLOPPY DISK CONTROLLER) S a t 49 GND a 50 .D 51 w 52 w w53 GND 54 55 56 57 58 59 60 61 62 63 64 e e h U 4 t .c om HD63266F (1/3) IL00 VDD (+5V) VDD (+5V) VDD (+5V) NC GND GND NC NC NC 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 VDD(+5V) GND GND GND GND GND PIN No. I/O 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I I I I I I I I I — — I/O I/O I/O I/O I/O SIGNAL 8" / 5" XTALSEL RESET E, RD R/W, WR CS DACK RS0 RS1 GND GND D0 D1 D2 D3 D4 PIN No. I/O 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 w w w t a .D I/O I/O I/O O O I — O — I I I I I I I SIGNAL S a e h PIN No. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 U 4 t e SIGNAL TRK0 INDEX RDATA XTAL2 NC NC XTAL1 NC GND GND NC VDD VDD VDD WGATE WDATA 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 .c m o 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 (VDD = +5V) I/O I I I I — — I — — — — — — — O O PIN No. I/O 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 — O O O O — O O O O — O O O O — SIGNAL GND STEP HDIR HLOAD HSEL GND DS0 DS1 DS2 DS3 GND MON0 MON1 MON2 MON3 GND D5 D6 D7 DREQ IRQ DEND GND 1/2EX1 VDD NUM1 NUM2 IFS SFORM INP READY WPRT w w w .D a t a e h S 4 t e U m o .c HD63266F (2/3) INPUT 8"/5" CS DACK DEND E, RD IFS INDEX INP NUM1, 2 R/W, WR RDATA READY RESET RS0, 1 SFORM TRKO WPRT XTAL1, 2 XTALSEL OUTPUT 1/2EX1 DREQ DS0-DS3 HDIR HLOAD HSEL IRQ MON0-MON3 STEP WDATA WGATE 12 13 14 15 16 17 18 19 D0 D1 D2 D3 D4 D5 D6 D7 1/2 EX1 RESET E, RD R/W, WR CS RS0 RS...