制造商:Renesas Electronics
功能描述:74LS Counter/Divider
HD74LS42
HD74LS42FP
HD74LS42FPEL
HD74LS42P
HD74LS47P
HD74LS48P
HD74LS49P
HD74LS640FP
HD74LS640FPEL
HD74LS640FPER