SN74LS164

SN74LS166

SN74LS175

SN74LS191

SN74LS193

SN74LS221

SN74LS240

SN74LS244

SN74LS245

SN74LS251

SN74LS273

SN74LS279

SN74LS283

SN74LS293

SN74LS30

SN74LS365

SN74LS374

SN74LS378

SN74LS42

SN74LS424