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74HCT193N 데이터시트(PDF) 3 Page - NXP Semiconductors |
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74HCT193N 데이터시트(HTML) 3 Page - NXP Semiconductors |
3 / 13 page December 1990 3 Philips Semiconductors Product specification Presettable synchronous 4-bit binary up/down counter 74HC/HCT193 QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns Notes 1. CPD is used to determine the dynamic power dissipation (PD in µW): PD = CPD × VCC2 × fi +∑ (CL × VCC2 × fo) where: fi = input frequency in MHz fo = output frequency in MHz ∑ (CL × VCC2 × fo) = sum of outputs CL = output load capacitance in pF VCC = supply voltage in V 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC − 1.5 V ORDERING INFORMATION See “74HC/HCT/HCU/HCMOS Logic Package Information”. SYMBOL PARAMETER CONDITIONS TYPICAL UNIT HC HCT tPHL/ tPLH propagation delay CPD, CPU to Qn CL = 15 pF; VCC = 5 V 20 20 ns fmax maximum clock frequency 45 47 MHz CI input capacitance 3.5 3.5 pF CPD power dissipation capacitance per package notes 1 and 2 24 26 pF |
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