Part LC75700T
Description Key Scan IC
Manufacturer onsemi
Size 229.41 KB
onsemi
LC75700T

Overview

  • Key input function for up to 30 keys.
  • General-purpose output ports for up to four pins.
  • A key scan is performed only when a key is pressed, and thus power dissipation is reduced.
  • Serial data I/O supports CCB format communication with the system controller.
  • Switching between the key scan output port and general purpose output port functions can be controlled by the control data.
  • The RES pin is provided. This pin disables key scanning, and forces the general-purpose output ports to the low level.
  • RC oscillator circuit TSSOP20(225mil)