€15.88 100PCS/LOT SN74LS21N DIP-14 HD74LS21P 74LS21 New original 7421 100PCS/LOT SN74LS21N DIP-14 HD74LS21P 74LS21 New original 7421 €15.88 Aliexpress EU - Consumer_Electronics To shop Price history Sep 20, 2023 €15.88