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74ALS74AN Fiches technique(PDF) 3 Page - NXP Semiconductors |
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74ALS74AN Fiches technique(HTML) 3 Page - NXP Semiconductors |
3 / 10 page Philips Semiconductors Product specification 74ALS74A Dual D-type flip-flop with set and reset 1996 Jul 01 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 H = High voltage level h = High state must be present one setup time prior to Low-to-High clock transition L = Low voltage level l = Low state must be present 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 * = Both outputs will be High while both SD and RD are Low, but the output states are unpredictable if SD and RD go High simultaneously 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 16 mA Tamb Operating free-air temperature range 0 to +70 °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 –0.4 mA IOL Low-level output current 8 mA Tamb Operating free-air temperature range 0 +70 °C |
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