Specification Brand : CHUANGYEIC BulletPoint1 : Part NO.:PCA9539DBRG4 BulletPoint2 : Number of I /O 16 BulletPoint3 : Interrupt Output Yes BulletPoint4 : Frequency - Clock 400kHz BulletPoint5 : Voltage - Supply 2.3 V ~ 5.5 V IncludedComponents : PCA9539DBRG4 ItemName : CHUANGYEIC 5PCS DS1307ZN+T&R/C02 IC RTC CLK/Calendar I2C 8SOIC ItemTypeKeyword : clock-integrated-circuits Manufacturer : CHUANGYEIC Material : Copper NumberOfItems : 1 PartNumber : DS1307ZN+T&R/C02 ProductDescription : Type Clock/Calendar Features Leap Year NVSRAM Square Wave Output Memory Size 56B Time Format HH:MM:SS (12/24 hr) Date Format YY-MM-DD-dd Interface I?C 2-Wire Serial Voltage - Supply 4.5 V 5.5 V Voltage - Supply Battery 2 V 3.5 V Operating Temperature -40C 85C Mounting Type Surface Mount Supplier Device Package 8-SOIC N ProductSiteLaunchDate : 2024-05-18T03:54:37.162Z SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 32101600 Voltage : 5.5 volts