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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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IO20PDB0V0 датащи(PDF) 70 Page - Microsemi Corporation |
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IO20PDB0V0 датащи(HTML) 70 Page - Microsemi Corporation |
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70 / 197 page  SmartFusion DC and Switching Characteristics 2- 58 R e v i sio n 1 2 Timing Characteristics Figure 2-26 • Timing Model and Waveforms PRE CLR Out CLK Data EN tSUE 50% 50% tSUD tHD 50% 50% tCLKQ 0 tHE tRECPRE tREMPRE tRECCLR tREMCLR tWCLR tWPRE tPRE2Q tCLR2Q tCKMPWH tCKMPWL 50% 50% 50% 50% 50% 50% 50% 50% 50% 50% 50% 50% 50% 50% 50% Table 2-79 • Register Delays Worst Commercial-Case Conditions: TJ = 85°C, Worst-Case VCC = 1.425 V Parameter Description –1 Std. Units tCLKQ Clock-to-Q of the Core Register 0.56 0.67 ns tSUD Data Setup Time for the Core Register 0.44 0.52 ns tHD Data Hold Time for the Core Register 0.00 0.00 ns tSUE Enable Setup Time for the Core Register 0.46 0.55 ns tHE Enable Hold Time for the Core Register 0.00 0.00 ns tCLR2Q Asynchronous Clear-to-Q of the Core Register 0.41 0.49 ns tPRE2Q Asynchronous Preset-to-Q of the Core Register 0.41 0.49 ns tREMCLR Asynchronous Clear Removal Time for the Core Register 0.00 0.00 ns tRECCLR Asynchronous Clear Recovery Time for the Core Register 0.23 0.27 ns tREMPRE Asynchronous Preset Removal Time for the Core Register 0.00 0.00 ns tRECPRE Asynchronous Preset Recovery Time for the Core Register 0.23 0.27 ns tWCLR Asynchronous Clear Minimum Pulse Width for the Core Register 0.22 0.22 ns tWPRE Asynchronous Preset Minimum Pulse Width for the Core Register 0.22 0.22 ns tCKMPWH Clock Minimum Pulse Width High for the Core Register 0.32 0.32 ns tCKMPWL Clock Minimum Pulse Width Low for the Core Register 0.36 0.36 ns Note: For specific junction temperature and voltage supply levels, refer to Table 2-7 on page 2-9 for derating values. |
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