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DS89C420 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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DS89C420 Datasheet(HTML) 5 Page - Maxim Integrated Products |
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5 / 47 page  DS89C420 Ultra-High-Speed Microcontroller 5 of 47 1 CYCLE PAGE MODE 1 2 CYCLE PAGE MODE 1 4 CYCLE PAGE MODE 1 PAGE MODE 2 NON-PAGE MODE PARAMETER SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX UNITS PSEN Low to Valid Instruction In tPLIV tCLCL - 18 tCLCL - 18 2tCLCL - 18 tCLCL - 18 2tCLCL - 18 ns Input Instruction Hold After PSEN tPXIX 0 0 0 0 0 ns Input Instruction Float After PSEN tPXIZ tCLCL - 5 tCLCL - 5 ns Port 0 Address to Valid Instruction In tAVIV0 1.5tCLCL - 20 3tCLCL - 20 ns Port 2 Address to Valid Instruction In tAVIV2 tCLCL - 18 1.5tCLCL - 18 2.5tCLCL - 18 3tCLCL - 20 3.5tCLCL - 20 ns PSEN Low to Port 0 Address Float tPLAZ 0 0 ns RD Pulse Width (P3.7) (Note 2) tRLRH tCLCL - 5 + tSTC1 tCLCL - 5 + tSTC1 2tCLCL - 5 + tSTC1 2tCLCL - 5 + tSTC1 2tCLCL - 5 + tSTC1 ns WR Pulse Width (P3.6) (Note 2) tWLWH tCLCL - 5 + tSTC1 tCLCL - 5 + tSTC1 2tCLCL - 5 + tSTC1 2tCLCL - 5 + tSTC1 2tCLCL - 5 + tSTC1 ns RD (P3.7) Low to Valid Data In (Note 2) tRLDV tCLCL - 15 + tSTC1 tCLCL - 15 + tSTC1 2tCLCL - 15 + tSTC1 2tCLCL - 15 + tSTC1 2tCLCL - 15 + tSTC1 ns Data Hold After RD (P3.7) tRHDX 0 0 0 0 0 ns Data Float After RD (P3.7) tRHDZ tCLCL - 5 tCLCL - 5 ns MOVX ALE Low to Input Data Valid (Note 2) tLLDV 2.5tCLCL - 20 + tSTC1 2.5tCLCL - 20 + tSTC1 ns Port 0 Address to Valid Data In (Note 2) tAVDV0 3tCLCL - 20 + tSTC1 3tCLCL - 20 + tSTC1 ns |
Similar Part No. - DS89C420_05 |
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Similar Description - DS89C420_05 |
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