ZHCSQ31E December 1982 – February 2022 SN54HC166 , SN74HC166
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
tpd is the maximum between tPLH and tPHL
A. CL includes probe and jig capacitance.
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following charactersitics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns.
C. For clock inputs, fmax is measured when the input duty cycle is 50%
D. The outputs are measured one at a time with one input transition per measurement.