Part Number Manufacturer / Brand Brife Description Part StatusApplicationsInterfaceVoltage - SupplyPackage / CaseSupplier Device PackageMounting Type
Analog Devices Inc. IC KEYPAD SCANNER GPIO PORT EXP ActiveKeypads and Alarm SystemsI²C1.8 V ~ 3 V24-WFQFN Exposed Pad, CSP24-LFCSP-WQ (4x4)Surface Mount
STMicroelectronics IC TXRX 5V 180MA PWRSO20 ObsoleteKeypads and Alarm SystemsSerial6 V ~ 28 V20-SOIC (0.433", 11.00mm Width) Exposed PadPowerSO-20Surface Mount
STMicroelectronics IC TXRX 5V 180MA 20SO ObsoleteKeypads and Alarm SystemsSerial6 V ~ 28 V20-SOIC (0.295", 7.50mm Width)20-SOSurface Mount
STMicroelectronics IC TXRX 5V 180MA 20SO ActiveKeypads and Alarm SystemsSerial6 V ~ 28 V20-SOIC (0.295", 7.50mm Width)20-SOSurface Mount