SN74HCT645PWRG4规格参数
相关型号
SN74HCT645PWT SN74HCT645PWTE4 SN74HCT645PWTG4 SN74HCT646DW SN74HCT646DWE4 SN74HCT646DWG4 SN74HCT646DWR SN74HCT646DWRE4 SN74HCT646DWRG4 SN74HCT646NT