4-bit Telephone Controller

The W742S819 is a high-performance 4-bit micro-controller (C) that provides an LCD Driver and three OpAmps. The device contains a 4-bit ALU, two 8-bit Timers two dividers (for two oscillators) in dual-clock operation, a 24 8 LCD Driver six 4-bit I/O ports (including 1 output port for LED driving), three OpAmps(Operational Amplifiers), and one channel DTMF generator. There are also five interrupt sources and 16-levels subroutine nesting for call subroutine or interrupt applications. The W742S819 operates on very low current and has two power reduction modes, that is the dual-clock slow operation and STOP mode, which help to minimize power dissipation. By Winbond Electronics Corp America
W742S819 's PackagesW742S819 's pdf datasheet



W742S819 Pinout, Pinouts
W742S819 pinout,Pin out
This is one package pinout of W742S819,If you need more pinouts please download W742S819's pdf datasheet.

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