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DS80C320-ENG Datasheet(PDF) 22 Page - Dallas Semiconductor |
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DS80C320-ENG Datasheet(HTML) 22 Page - Dallas Semiconductor |
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22 / 42 page ![]() DS80C320/DS80C323 22 of 42 TYPICAL ICC VERSUS FREQUENCY Figure 5 DS80C320 AC CHARACTERISTICS UP TO 25 MHz PARAMETER SYMBOL 25 MHz MIN 25 MHz MAX VARIABLE CLOCK MIN VARIABLE CLOCK MAX UNITS Oscillator Freq. (Ext. Osc.) (Ext. Crystal) 1/tCLCL 0 1 25 25 0 1 25 25 MHz ALE Pulse Width tLHLL 50 1.5tCLCL-10 ns Port 0 Address Valid to ALE Low tAVLL 9 0.5tCLCL-11 ns Address Hold After ALE Low tLLAX1 5 note 5 0.25tCLCL-5 note 5 ns Address Hold After ALE Low for MOVX WR tLLAX2 13 0.5tCLCL-7 ns ALE Low to Valid Instruction In tLLIV 73 2.5tCLCL-27 ns ALE Low to PSEN Low tLLPL 3 0.25tCLCL-7 ns PSEN Pulse Width tPLPH 83 2.25tCLCL-7 ns PSEN Low to Valid Instruction In tPLIV 69 2.25tCLCL-21 ns Input Instruction Hold After PSEN tPXIX 0 0 ns Input Instruction Float After PSEN tPXIZ 35 tCLCL-5 ns Port 0 Address to Valid Instruction In tAVIV1 93 3tCLCL-27 ns Port 2 Address to Valid Instruction In tAVIV2 107 3.5tCLCL-33 ns PSEN Low to Address Float tPLAZ note 5 note 5 ns |
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