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74HCT393D 데이터시트(PDF) 6 Page - NXP Semiconductors |
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74HCT393D 데이터시트(HTML) 6 Page - NXP Semiconductors |
6 / 7 page December 1990 6 Philips Semiconductors Product specification Dual 4-bit binary ripple counter 74HC/HCT393 DC CHARACTERISTICS FOR 74HCT For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: standard ICC category: MSI Note to HCT types The value of additional quiescent supply current ( ∆I CC) 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 the table below. AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr = tf = 6 ns; CL = 50 pF INPUT UNIT LOAD COEFFICIENT 1CP 2CP 1MR 2MR 0.4 0.4 1.0 1.0 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. tPHL/ tPLH propagation delay nCP to nQ0 15 25 31 38 ns 4.5 Fig.7 tPHL/ tPLH propagation delay nQn to nQn+1 6 10 13 15 ns 4.5 Fig.7 tPHL propagation delay nMR to nQn 18 32 40 48 ns 4.5 Fig.8 tTHL/ tTLH output transition time 7 15 19 22 ns 4.5 Fig.7 tW clock pulse width HIGH or LOW 19 11 24 29 ns 4.5 Fig.7 tW master reset pulse width; HIGH 16 6 20 24 ns 4.5 Fig.8 trem removal time nMR to nCP 5 0 5 5 ns 4.5 Fig.8 fmax maximum clock pulse frequency 27 48 22 18 MHz 4.5 Fig.7 |
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