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C8051F124-GQR Datasheet(PDF) 46 Page - Silicon Laboratories |
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C8051F124-GQR Datasheet(HTML) 46 Page - Silicon Laboratories |
46 / 350 page ![]() C8051F120/1/2/3/4/5/6/7 C8051F130/1/2/3 46 Rev. 1.4 ALE/P4.5 93 93 D I/O ALE Strobe for External Memory Address bus (multiplexed mode) Port 4.5 See Port Input/Output section for complete description. RD/P4.6 92 92 D I/O /RD Strobe for External Memory Address bus Port 4.6 See Port Input/Output section for complete description. WR/P4.7 91 91 D I/O /WR Strobe for External Memory Address bus Port 4.7 See Port Input/Output section for complete description. A8/P5.0 88 88 D I/O Bit 8 External Memory Address bus (Non-multi- plexed mode) Port 5.0 See Port Input/Output section for complete description. A9/P5.1 87 87 D I/O Port 5.1. See Port Input/Output section for com- plete description. A10/P5.2 86 86 D I/O Port 5.2. See Port Input/Output section for com- plete description. A11/P5.3 85 85 D I/O Port 5.3. See Port Input/Output section for com- plete description. A12/P5.4 84 84 D I/O Port 5.4. See Port Input/Output section for com- plete description. A13/P5.5 83 83 D I/O Port 5.5. See Port Input/Output section for com- plete description. A14/P5.6 82 82 D I/O Port 5.6. See Port Input/Output section for com- plete description. A15/P5.7 81 81 D I/O Port 5.7. See Port Input/Output section for com- plete description. Table 4.1. Pin Definitions (Continued) Name Pin Numbers Type Description ‘F120 ‘F122 ‘F124 ‘F126 ‘F121 ‘F123 ‘F125 ‘F127 ‘F130 ‘F132 ‘F131 ‘F133 |
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