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SM8577B Datasheet(PDF) 5 Page - Nippon Precision Circuits Inc |
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SM8577B Datasheet(HTML) 5 Page - Nippon Precision Circuits Inc |
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5 / 10 page  SM8577B NIPPON PRECISION CIRCUITS—5 AC Characteristics VDD = 5 V ± 10%, VSS = 0 V, Ta = −40 to 85 °C, CL = 50 pF unless otherwise noted VDD = 3 V ± 10%, VSS = 0 V, Ta = −40 to 85 °C, CL = 50 pF unless otherwise noted P arameter Symbol Condition Rating Unit min m a x min CLK clock period tCLK 0.75 – 7800 µs CLK LOW-level pulsewidth tCLKL 0.375 – 3900 µs CLK HIGH-level pulsewidth tCLKH 0.375 – 3900 µs CE setup time tCES 0.375 – 3900 µs CE hold time tCEH 0.375 – – µs CE enable time tCE – – 0.9 s Write data setup time tSD 0.1 – – µs Write data hold time tHD 0.1 – – µs DATA output delay time tDATD – – 0.2 µs DATA output floating time tDZ See measurement circuit. – – 0.1 µs Clock rise time tr1 –– 50 ns Clock fall time tf1 –– 50 ns FOUT rise time tr2 CL = 30 pF – – 100 ns FOUT fall time tf2 CL = 30 pF – – 100 ns FOUT duty cycle Duty CL = 30 pF, 32 kHz output 40 – 60 % Wait time tRCV 0.95 – – µs P arameter Symbol Condition Rating Unit min m a x min CLK clock period tCLK 1.5 – 7800 µs CLK LOW-level pulsewidth tCLKL 0.75 – 3900 µs CLK HIGH-level pulsewidth tCLKH 0.75 – 3900 µs CE setup time tCES 0.75 – 3900 µs CE hold time tCEH 0.75 – – µs CE enable time tCE – – 0.9 s Write data setup time tSD 0.2 – – µs Write data hold time tHD 0.1 – – µs DATA output delay time tDATD – – 0.4 µs DATA output floating time tDZ See measurement circuit. – – 0.2 µs Clock rise time tr1 – – 100 ns Clock fall time tf1 – – 100 ns FOUT rise time tr2 CL = 30 pF – – 200 ns FOUT fall time tf2 CL = 30 pF – – 200 ns FOUT duty cycle Duty CL = 30 pF, 32 kHz output 40 – 60 % Wait time tRCV 1.9 – – µs |
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