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BUY 74HCT4538D,118 https://www.utsource.net/itm/p/11715464.html
IC DUAL RETRIG MULTIVIB 16SOIC
Description: The 74HCT4538D is a dual 4-input NAND Schmitt trigger from NXP. Features: High noise immunity: 0.45 VCC (typ.) Low power dissipation: 1 μA (max) High noise immunity: 0.45 VCC (typ.) Low power dissipation: 1 μA (max) Inputs accept voltages up to 7V Outputs source/sink 24 mA High speed: tpd = 10 ns (typ.) Applications: Clock and timing circuits Pulse generation Waveform shaping Signal gating Interface circuits Data transmission and reception (For reference only)