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74HCT7731 Scheda tecnica(PDF) 6 Page - NXP Semiconductors |
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74HCT7731 Scheda tecnica(HTML) 6 Page - NXP Semiconductors |
6 / 8 page September 1993 6 Philips Semiconductors Product specification Quad 64-bit static shift register 74HC/HCT7731 UNIT LOAD COEFFICIENT Notes 1. The RS input has CMOS input switching levels. 2. The value of additional quiescent supply current ( ∆ICC) for a unit load of 1 is given in the family specifications. To determine ∆ICC per input, multiply this value by the unit load coefficient shown in Table 1. AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr = tf = 6 ns; CL = 50 pF. INPUT UNIT LOAD COEFFICIENT CPn 0.7 RECn 0.4 Dn 0.5 SYMBOL PARAMETER Tamb (°C) UNIT TEST CONDITION +25 −40 to +85 −40 to +125 VCC (V) WAVEFORMS MIN TYP MAX MIN MAX MIN MAX tPHL/tPLH propagation delay time CP to Qn − 24 42 − 52 − 63 ns 4.5 Fig.4 tTHL/tTLH output transmission time − 715 − 18 − 22 ns 4.5 Fig.4 tW clock pulse width HIGH or LOW 16 7 − 20 − 24 − ns 4.5 Fig.4 tsu set-up time Dn to CPn 12 3 − 15 − 18 − ns 4.5 Fig.4 tsu set-up time RECn to CPn 15 6 − 18 − 22 − ns 2 Fig.5 th hold time Dn to CPn 50 − 6 − 7 − ns 2 Fig.4 th hold time RECn to CPn 2 −3 − 2 − 3 − ns 4.5 Fig.5 fmax maximum clock pulse frequency 30 80 − 24 − 20 − MHz 4.5 Fig.4 (note 1) |
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