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74HCT221 Arkusz danych(PDF) 9 Page - NXP Semiconductors |
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74HCT221 Arkusz danych(HTML) 9 Page - NXP Semiconductors |
9 / 15 page December 1990 9 Philips Semiconductors Product specification Dual non-retriggerable monostable multivibrator with reset 74HC/HCT221 AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr =tf = 6 ns; CL = 50 pF SYMBOL PARAMETER Tamb (°C) UNIT TEST CONDITIONS 74HCT VCC (V) WAVEFORMS +25 −40 to +85 −40 to +125 min typ max min max. min. max. tPLH propagation delay (trigger) nA, nRD to nQ 30 50 63 75 ns 4.5 CEXT = 0 pF; REXT =5 kΩ; Fig.10 tPLH propagation delay (trigger) nB to nQ 24 42 53 63 ns 4.5 CEXT = 0 pF; REXT =5 kΩ; Fig.10 tPHL propagation delay (trigger) nA to nQ 26 44 55 66 ns 4.5 CEXT = 0 pF; REXT =5 kΩ; Fig.10 tPHL propagation delay (trigger) nB to nQ 21 35 44 53 ns 4.5 CEXT = 0 pF; REXT =5 kΩ; Fig.10 tPHL propagation delay (trigger) nRD to nQ 26 43 54 65 ns 4.5 CEXT = 0 pF; REXT =5 kΩ; Fig.10 tPHL propagation delay (reset) nRD to nQ 26 43 54 65 ns 4.5 CEXT = 0 pF; REXT =5 kΩ; Fig.11 tPLH propagation delay (reset) nRD to nQ 31 51 64 77 ns 4.5 CEXT = 0 pF; REXT =5 kΩ; Fig.11 tTHL/ tTLH output transition time 7 15 19 22 ns 4.5 Fig.10 tW trigger pulse width nA = LOW 20 13 25 30 ns 4.5 Fig.10 tW trigger pulse width nB = HIGH 20 13 25 30 ns 4.5 Fig.10 tW pulse width nRD = LOW 22 13 28 33 ns 4.5 Fig.8 tW output pulse width nQ = LOW nQ = HIGH 630 700 770 602 798 595 805 µs 5.0 CEXT = 100 nF; REXT = 10 kΩ; Fig.10 tW trigger pulse width nQ or nQ 140 −− ns 4.5 CEXT = 28 pF; REXT =2 kΩ; Fig.10 tW trigger pulse width nQ or nQ 1.5 −− µs 4.5 CEXT = 1 nF; REXT = 2 kΩ; Fig.10 |
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Podobny opis - 74HCT221 |
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