新TC74HCT244P TC74HC368AP TC74HCT574A TC74HC4028P T

原AM26LS32ACN MB7112H TC74HCT244P PS2501-4

原装AM26LS32ACN MB7112H TC74HCT244P PS2501-4

原装SN74HCT244N SN7403N M74LS10P TC74HC74AP

原74F374PC HD74LS139P HD74HCT244P TC74HC273AP

贴片直插TC75W393FU TC74VHC244 TC74HC623P TC74HCT00A 5