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74F74 데이터시트(PDF) 3 Page - NXP Semiconductors |
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74F74 데이터시트(HTML) 3 Page - NXP Semiconductors |
3 / 8 page Philips Semiconductors Product specification 74F74 Dual D-type flip-flop 1996 Mar 12 3 LOGIC DIAGRAM VCC = Pin 14 GND = Pin 7 5, 9 6, 8 Q Q 4, 10 1, 13 3, 11 2, 12 SD RD CP D SF00048 FUNCTION TABLE INPUTS OUTPUTS OPERATING SD RD CP D Q Q MODE L H X X H L Asynchronous set H L X X L H Asynchronous reset L L X X H H Undetermined* H H ↑ h H L Load ”1” H H ↑ l L H Load ”0” H H ↑ X NC NC Hold NOTES: H = High voltage level h = High voltage level one setup time prior to low-to-high clock transition L = Low voltage level l = Low voltage level one setup time prior to low-to-high clock transition NC= No change from the previous setup X = Don’t care ↑ = Low-to-high clock transition ↑ = Not low-to-high clock transition * = This setup is unstable and will change when either set or reset return to the high level. ABSOLUTE MAXIMUM RATINGS (Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free air temperature range.) SYMBOL PARAMETER RATING UNIT VCC Supply voltage –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5 mA VOUT Voltage applied to output in high output state –0.5 to VCC V IOUT Current applied to output in low output state 40 mA T Operating free air temperature range Commercial range 0 to +70 °C Tamb Operating free air temperature range Industrial range –40 to +85 °C Tstg Storage temperature range –65 to +150 °C RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER LIMITS UNIT SYMBOL PARAMETER MIN NOM MAX UNIT VCC Supply voltage 4.5 5.0 5.5 V VIH High-level input voltage 2.0 V VIL Low-level input voltage 0.8 V IIk Input clamp current –18 mA IOH High-level output current –1 mA IOL Low-level output current 20 mA T b Operating free air temperature range Commercial range 0 +70 °C Tamb O erating free air tem erature range Industrial range –40 +85 °C |
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