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Texas Instruments
74HC21 Series
SN74HC21N
Documents Deep Dive
SNx4HC21 Dual 4-Input AND Gates datasheet (Rev. F)
Input and Output Characteristics of Digital Integrated Circuits
SN54/74HCT CMOS Logic Family Applications and Restrictions
Semiconductor Packing Material Electrostatic Discharge (ESD) Protection
Designing With Logic (Rev. C)
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