注释
1. CPD是用于确定动态功耗(PD为mW):
PD = CPD ´ VCC2 ´ fi + å (CL ´ VCC2 ´ fo)
其中:
Fi =MHz输入频率
fo=MHz输出频率
E (CL X VCC2Xfo) = 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
