Use this matrix keypad decoder to add user input to your Parallax microcontroller application. The MEMKey is a programmable keypad encoder which supports both a simple serial communication protocol and the standard PC/AT communication protocol using a matrix keypad as large as 4 X 5.

Features:

• Programmable rows and columns
• Programmable key values
• 64 Bytes of user-accessible EEPROM
• Standard TTL levels
• Package: SIP

Key Specifications:

• Power requirements: 3.0 to 5.5 VDC
• Communication: Asynchronous Serial (2400 baud) or PC/AT
• Dimensions: 2.25 x 1.6 x in ( 57.15 x 40.64 x mm)
• Operating temp range: -4 to +176 °F (-20 to +80 °C)

Downloads & Resources:
S³ Memkey Datasheet (.pdf)
Solutions Cubed Product Line (.pdf)