C8051F045 View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
C8051F045 Datasheet PDF : 328 Pages
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C8051F040/1/2/3/4/5/6/7
Table 4.1. Pin Definitions (Continued)
Name
Pin Numbers
Type Description
F040/2/4/6 F041/3/5/7
P4.4
94
D I/O Port 4.4. See Port Input/Output section for complete
description.
P4.5/ALE
93
D I/O
ALE Strobe for External Memory Address bus (multi-
plexed mode)
Port 4.5
See Port Input/Output section for complete description.
P4.6/RD
92
D I/O /RD Strobe for External Memory Address bus
Port 4.6
See Port Input/Output section for complete description.
P4.7/WR
91
D I/O /WR Strobe for External Memory Address bus
Port 4.7
See Port Input/Output section for complete description.
P5.0/A8
88
D I/O
Bit 8 External Memory Address bus (Non-multiplexed
mode)
Port 5.0
See Port Input/Output section for complete description.
P5.1/A9
87
D I/O Port 5.1. See Port Input/Output section for complete
description.
P5.2/A10
86
D I/O Port 5.2. See Port Input/Output section for complete
description.
P5.3/A11
85
D I/O Port 5.3. See Port Input/Output section for complete
description.
P5.4/A12
84
D I/O Port 5.4. See Port Input/Output section for complete
description.
P5.5/A13
83
D I/O Port 5.5. See Port Input/Output section for complete
description.
P5.6/A14
82
D I/O Port 5.6. See Port Input/Output section for complete
description.
P5.7/A15
81
D I/O Port 5.7. See Port Input/Output section for complete
description.
P6.0/A8m/A0
80
D I/O
Bit 8 External Memory Address bus (Multiplexed mode)
Bit 0 External Memory Address bus (Non-multiplexed
mode)
Port 6.0
See Port Input/Output section for complete description.
P6.1/A9m/A1
79
D I/O Port 6.1. See Port Input/Output section for complete
description.
P6.2/A10m/A2
78
D I/O Port 6.2. See Port Input/Output section for complete
description.
P6.3/A11m/A3
77
D I/O Port 6.3. See Port Input/Output section for complete
description.
Rev. 1.5
41
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