C8051F060/1/2/3/4/5/6/7
Table 4.1. Pin Definitions (Continued)
Name
P2.5
P2.6
P2.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P4.5/ALE
P4.6/RD
P4.7/WR
P5.0/A8
P5.1/A9
Pin Numbers
F060 F061 F064 F065
F062 F063 F066 F067
41 36 41 36
40 35 40 35
39 34 39 34
54
54
53
53
52
52
51
51
50
50
49
49
48
48
47
47
93
93
92
92
91
91
88
88
87
87
Type Description
D I/O Port 2.5. See Port Input/Output section for complete
description.
D I/O Port 2.6. See Port Input/Output section for complete
description.
D I/O Port 2.7. See Port Input/Output section for complete
description.
D I/O Port 3.0. See Port Input/Output section for complete
description.
D I/O Port 3.1. See Port Input/Output section for complete
description.
D I/O Port 3.2. See Port Input/Output section for complete
description.
D I/O Port 3.3. See Port Input/Output section for complete
description.
D I/O Port 3.4. See Port Input/Output section for complete
description.
D I/O Port 3.5. See Port Input/Output section for complete
description.
D I/O Port 3.6. See Port Input/Output section for complete
description.
D I/O Port 3.7. See Port Input/Output section for complete
description.
D I/O
Port 4.5. See Port Input/Output section for complete
description.
ALE Strobe for External Memory Address Bus (Mul-
tiplexed mode).
D I/O Port 4.6. See Port Input/Output section for complete
description.
/RD Strobe for External Memory Address Bus.
D I/O Port 4.7. See Port Input/Output section for complete
description.
/WR Strobe for External Memory Address Bus.
D I/O
Port 5.0. See Port Input/Output section for complete
description.
Bit 8 External Memory Address Bus (Non-multi-
plexed mode).
D I/O Port 5.1. See Port Input/Output section for complete
description.
42
Rev. 1.2