M74HC688RM13TR
STMicroelectronics
M74HC85RM13TR
M74HC688TTR
MC14585BCPG
Sanyo Semiconductor/ON Semiconductor
74F521MSA
74ACT520SJ
74ACT520SJX
74ACT521SJX
74F521MSAX
74AC520SC
74AC520SCX
74AC521SCX
74ACT520SCX
74ACT521SCX
74AC521MTC
74AC521MTCX
SY100E166JC
Roving Networks / Microchip Technology
SY100S366FC
SY100S366JC
SY10E166JC