need help on 3x4 key pad

[rambo99]

I have a project Z80 mini board one input and one output the input has a 74LS244 which go to the Z80.rom,ram can I connect the key pad matrix to the input will it work or do I need a microcontroller project or project
there is a schematic look at the input port I need to connect a key pad matrix
U3 is 74LS244

this input is from the Z80 mini board not the 74LS244
The input has 10 pin
pin1 5v+
pin2,3,4,5,6,7,8,9 go to the 74LS244
pin10 GND
I have check on the web site and found this IC mm74c922 has any one got a project that will help me connect the key pad matrix to the z80 mini board