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SC68C562A8A Datasheet(PDF) 9 Page - NXP Semiconductors |
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SC68C562A8A Datasheet(HTML) 9 Page - NXP Semiconductors |
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9 / 26 page  Philips Semiconductors Product specification SC68C562 CMOS Dual universal serial communications controller (CDUSCC) 1998 Sep 04 9 tRELREH RESETN SD00205 Figure 1. Reset Timing LIMITS SYMBOL PARAMETER INDUSTRIAL SC68C562 COMMERCIAL SC68C562 UNIT Min Max Min Max tRELREH RESETN low to RESETN high 200 200 ns A1–A6 R/WN CSN D0–D7 DTACKN12 tADVCSL tRWHCSL tCSLADI tCSLCSH tCSHRWL tCSHCSL tCSHDDF tCSLDDV tCSLDDA tDDVDAL tCSHDDI tCSHDAH tCSHDAZ tCSLDAL INVALID DATA VALID INVALID tDALCSH SD00254 Figure 2. Read Cycle Bus Timing Times represent an X1 clock frequency of 14.745MHz LIMITS SYMBOL PARAMETER INDUSTRIAL SC68C562 COMMERCIAL SC68C562 UNIT Min Max Min Max tADVCSL A0-A6 valid to CSN low 10 5 ns tRWHCSL RWN high to CSN low 10 5 ns tCSHRWL CSN high to RWN low 20 10 ns tCSHCSL CSN high to CSN low8 50 30 ns tCSLDDV CSN low to read data valid 150 130 ns tCSHDDF CSN high to data bus float 50 40 ns tDDVDAL Read data valid to DTACKN low9 20 20 ns tDALCSH DTACKN low to CSN high9 0 0 ns tCSLDAL13 CSN low to DTACKN low9 30 ) 1 f CL 140 ) 1.5 f CL 40 ) 1 f CL 130 ) 1.5 f CL ns tCSHDAH CSN high to DTACKN high 60 60 ns tCSHDAZ CSN high to DTACKN high impedance 90 90 ns tCSLADI CSN low to address invalid 60 50 ns tCSLCSH CSN low to CSN high 150 130 ns tCSLDDA CSN low to data bus driver active9 5 10 ns tCSHDDI CSN high to data invalid 5 5 ns |
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