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74HCT423PW Folha de dados(PDF) 6 Page - NXP Semiconductors |
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74HCT423PW Folha de dados(HTML) 6 Page - NXP Semiconductors |
6 / 14 page 1998 Jul 08 6 Philips Semiconductors Product specification Dual retriggerable monostable multivibrator with reset 74HC/HCT423 DC CHARACTERISTICS FOR 74HC For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: standard (except for nREXT /CEXT) ICC category: MSI AC CHARACTERISTICS FOR 74HC GND = 0 V; tr = tf = 6 ns; CL = 50 pF SYMBOL PARAMETER Tamb (°C) UNIT TEST CONDITIONS 74HC VCC (V) WAVEFORMS/ NOTES +25 −40 to +85 −40 to +125 min. typ. max min max min. max. tPHL/ tPLH propagation delay nA, nB to nQ, nQ 80 255 320 385 ns 2.0 CEXT = 0 pF; REXT =5 kΩ 29 51 64 77 4.5 23 43 54 65 6.0 tPHL/ tPLH propagation delay nRD to nQ, nQ 66 215 270 325 ns 2.0 CEXT = 0 pF; REXT =5 kΩ 24 43 54 65 4.5 19 37 46 55 6.0 tTHL/ tTLH output transition time 19 75 95 110 ns 2.0 7 15 19 22 4.5 6 13 16 19 6.0 tW trigger pulse width nA = LOW 100 11 125 150 ns 2.0 Fig.7 20 4 25 30 4.5 17 3 21 26 6.0 tW trigger pulse width nB = HIGH 100 17 125 150 ns 2.0 Fig.7 20 6 25 30 4.5 17 5 21 26 6.0 tW reset pulse width nRD = LOW 100 14 125 150 ns 2.0 Fig.8 20 5 25 30 4.5 17 4 21 26 6.0 tW output pulse width nQ = HIGH nQ = LOW 450 −− µs 5.0 CEXT = 100 nF; REXT = 10 kΩ; Figs 7 and 8 tW output pulse width nQ = HIGH nQ = LOW 75 −− ns 5.0 CEXT = 0 pF; REXT =5 kΩ; note 1; Figs 7 and 8 trt retrigger time nA, nB 110 −− ns 5.0 CEXT = 0 pF; REXT =5 kΩ; note 2; Fig. 7 REXT external timing resistor 10 2 1000 1000 −− k Ω 2.0 5.0 Fig.9 CEXT external timing capacitor no limits pF 5.0 Fig.9; note 3 |
Nº de peça semelhante - 74HCT423PW |
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Descrição semelhante - 74HCT423PW |
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