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54AC821F Arkusz danych(PDF) 5 Page - National Semiconductor (TI) |
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54AC821F Arkusz danych(HTML) 5 Page - National Semiconductor (TI) |
5 / 8 page AC Electrical Characteristics 54AC Symbol Parameter V CC T A = −55˚C to +125˚C Units Fig. (V) C L = 50 pF No. (Note 8) Min Max f max Maximum Clock 3.3 95 MHz Frequency 5.0 100 t PLH Propagation Delay 3.3 1.0 13.0 ns CP to O n 5.0 1.5 9.5 t PHL Propagation Delay 3.3 1.0 13.0 ns CP to O n 5.0 1.5 9.5 t PZH Output Enable Time 3.3 1.0 13.0 ns OE to O n 5.0 1.5 9.5 t PZL Output Enable Time 3.3 1.0 13.0 ns OE to O n 5.0 1.5 9.5 t PHZ Output Disable Time 3.3 1.0 12.0 ns OE to O n 5.0 1.5 10.0 t PLZ Output Disable Time 3.3 1.0 12.0 ns OE to O n 5.0 1.5 10.0 Note 8: Voltage Range 3.3 is 3.3V ±0.3V Note 9: Voltage Range 5.0 is 5.0V ±0.5V AC Operating Requirements Symbol Parameter 54AC Units V CC T A = −55˚C to +125˚C Fig. (V) C L = 50 pF No. (Note 10) Guaranteed Minimum t s Setup Time, HIGH or LOW 3.3 3.0 ns D n to CP 5.0 3.0 t h Hold Time, HIGH or LOW 3.3 3.0 ns D n to CP 5.0 3.0 t w CP Pulse Width 3.3 6.0 ns HIGH or LOW 5.0 5.0 Note 10: Voltage Range 3.3 is 3.3V ±0.3V Note 11: Voltage Range 5.0 is 5.0V ±0.5V AC Electrical Characteristics 54ACT V CC T A = −55˚C Fig. Symbol Parameter (V) to +125˚C Units No. (Note 12) C L = 50 pF Min Max f max Maximum Clock 5.0 85 MHz Frequency t PLH Propagation Delay 5.0 1.5 11.5 ns CP to O n t PHL Propagation Delay 5.0 1.5 11.5 ns CP to O n t PZH Output Enable Time 5.0 1.5 12.5 ns OE to O n 5 www.national.com |
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