Pin No. Terminal
Name
I/O Function
55 P37/A15 O The address bus signal
for external bus
56 P36/A14 O The address bus signal
for external bus
57 P35/A13 O The address bus signal
for external bus
58 P34/A12 O The address bus signal
for external bus
59 P33/A11 O The address bus signal
for external bus
60 P32/A10 O The address bus signal
for external bus
61 P31/A9 O The address bus signal
for external bus
62 V
CC
P Power supply
63 P30/A8 O The address bus signal
for external bus
64 V
SS
P Power supply
65 P27/A7 O The address bus signal
for external bus
66 P26/A6 O The address bus signal
for external bus
67 P25/A5 O The address bus signal
for external bus
68 P24/A4 O The address bus signal
for external bus
69 P23/A3 O The address bus signal
for external bus
70 P22/A2 O The address bus signal
for external bus
71 P21/A1 O The address bus signal
for external bus
72 P20/A0 O The address bus signal
for external bus
73 P17/D15 I/O The data bus signal for
external bus
74 P16/D14 I/O The data bus signal for
external bus
75 P15/D13 I/O The data bus signal for
external bus
76 P14/D12 I/O The data bus signal for
external bus
77 P13/D11 I/O The data bus signal for
external bus
47
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