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********** C-MOS SCSI PROTOCOL CONTROLLER
—TOP VIEW—
SYM53CF92A-64QFP (1/3) IL22
48
45
40
35 GND
49 50 GND
VDD (+5 V)
GND
33
32 GND 30
55
GND 25
GND 60 VDD (+5 V) 64 GND GND 20
VDD (+5 V)
GND
GND
VDD (+5 V)
17
10
15 16
1
5
(VDD = +5 V) PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I/O — O I I — I/O I/O I/O — I/O I/O I/O — I/O I/O I/O SIGNAL GND DREQ PIN NO. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 I/O — I/O I/O I/O — I/O I/O I/O I/O — I/O I/O I/O I/O — I/O SIGNAL VDD SD0 SD1 SD2 GND SD3 SD4 SD5 SD6 GND SD7 SDP PIN NO. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 I/O I/O I/O I/O — I/O I/O I/O — I O — I I I I I SIGNAL PIN NO.