SN69040B Overview
Description
SN69040B is a single chip voice/dual tone melody synthesizer IC with 4*32 LCD direct drive capability which contains two 4-bit I/O ports, two optional 4-bit output ports and a tiny controller. By programming through the tiny controller, user’s applications including LCD display, section combination, trigger modes, output status, voice/melody playing and other logic functions and then be easily implemented.
Key Features
- Com1-Com4 for LCD driver. Negative power supply. Bit 3 to bit 0 of IO port
- Buzzer driver outputs. D/A current output. Reset pin with internal pull low. Oscillation
