74VHC221ASJ
Rochester Electronics
CD4538BCWMX
74LV123N,112
SN74LV123ANS
74HCT423DB,112
74HCT221N,112
DM74LS221SJ
CD74HCT4538M
74VHC221AMTC
MC74HC4538ADR2
CD74HCT221E
MC74HC4538AFELG
CD74HC423E
74HCT123N,652
SC14538BDTR2G
MC74HC4538AFR2-MO
MC74HC4538AFR2
MM74HC4538SJX
CD74HC123NS
74HCT221DB,112