MB74LS190M MB74LS191 MB74LS191G MB74LS191N MB74LS191PF MB74LS191PF-G MB74LS192 MB74LS192P MB74LS193 MB74LS193PG MB74LS194 MB74LS194A MB74LS194AM MB74LS194AP MB74LS194APG MB74LS194ASE MB74LS195A MB74LS195AMG MB74LS195APG MB74LS20 MB74LS20-ASE MB74LS20-F90 MB74LS20F09 MB74LS20F90 MB74LS20M MB74LS20M-C MB74LS20MC MB74LS20MG MB74LS20P MB74LS20S MB74LS20SE MB74LS21 MB74LS21PF MB74LS221 MB74LS221F MB74LS221FP MB74LS221PF MB74LS24 MB74LS240 MB74LS240F MB74LS240MG MB74LS240PF MB74LS240PG MB74LS240S MB74LS241 MB74LS241MG MB74LS241PG MB74LS241SE MB74LS242 MB74LS243 MB74LS244 MB74LS244(89) MB74LS244-MG MB74LS244M-G MB74LS244N MB74LS244P MB74LS244PC MB74LS244PF MB74LS244PF-G-BND MB74LS244PF-G-BND-TR MB74LS245 MB74LS245B MB74LS245G MB74LS245MG MB74LS245N MB74LS245PF MB74LS245PG MB74LS246 MB74LS247 MB74LS251 MB74LS251MG MB74LS251PF-G MB74LS251PFG MB74LS251PG MB74LS253 MB74LS253PG MB74LS256 MB74LS257 MB74LS257M MB74LS257MG MB74LS258 MB74LS258PG MB74LS259 MB74LS259PF MB74LS259PF-G-BND MB74LS259PG MB74LS26 MB74LS26(84) MB74LS266 MB74LS266PG MB74LS26N MB74LS26PG