The ADP5589 is an I/O port expander and keypad matrix decoder designed for QWERTY type phones that require a large keypad matrix and expanded I/O lines.

The Keypad library is designed for driving matrix style keypads (matrix decoder) when using the Arduino platform. It uses the standard method of selecting a column and scanning all the rows to see ...

Keypad decoder sketch This sketch is mentioned in my answer on Arduino Stack Exchange. It shows how you can interpet a keypad matrix, generating "key down" and "key up" output for each keypress. The ...

The EDE1144 Keypad Encoder IC from E•Lab Digital Engineering (www.elabinc.com) is designed to interface a matrix-type 4 row × 4 column (16-key or less) keypad to a microcontroller or other host ...

The decoder IC is designed in a 3.3V, 0.35μm, four-metal CMOS process and can correct up to t = 60 errors per block of n = 4080 words at a rate of 400 Mb/s. The IC prototype consumes 3.0 W with a 50 ...

This paper presents the Full Custom Design technique in the IC digital design, which is used to achieve the maximum performance or minimum power. The technique was applied on the decoder of the ARM1 ...