器件名称:
74HCT1G02GW
功能描述:
2-input NOR gate
文件大小:
74KB 共16页
简 介:
INTEGRATED CIRCUITS DATA SHEET 74HC1G02; 74HCT1G02 2-input NOR gate Product specication Supersedes data of 2001 Mar 02 2002 May 17 Philips Semiconductors Product specication 2-input NOR gate FEATURES Wide supply voltage range from 2.0 to 6.0 V Symmetrical output impedance High noise immunity Low power dissipation Balanced propagation delays Very small 5 pins package Output capability: standard. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf ≤ 6.0 ns. DESCRIPTION 74HC1G02; 74HCT1G02 The 74HC1G/HCT1G02 is a high speed Si-gate CMOS device. The 74HC1G/HCT1G02 provides the 2-input NOR function. The standard output currents are half the values compared to the 74HC/HCT02. TYPICAL SYMBOL tPHL/tPLH CI CPD Notes 1. CPD is used to determine the dynamic power dissipation PD (W). PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts; ∑ (CL × VCC2 × fo) = sum of outputs. 2. For HC1G the condition is VI = GND to VCC. For HCT1G the condition is VI = GND to VCC 1.5 V. FUNCTION TABLE See note 1. INPUTS A L L H H Note 1. H = HIGH voltage level; L = LOW voltage level. B L H L H OUTPUT Y H L L L PARAMETER propagation delay A and B to Y input capacitance power dissipation capacitance notes 1 and 2 CONDITIONS HC1G CL = 15 pF; VCC = 5 V 7 1.5 18 HCT1G 9 1.5 19 ns pF pF UNIT 2002 May 17 2 Philips Semiconductors Product specication 2-input NOR gate ORDER……