SN6A514
LCD Controller with Voice/Dual Tone Melody
INTRODUCTION
SN6A514 is a series of single chip voice/dual tone me...
SN6A514
LCD Controller with Voice/Dual Tone Melody
INTRODUCTION
SN6A514 is a series of single chip voice/dual tone melody synthesizer IC with 16*64/8*64 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 application including LCD display, section combination, trigger modes, output status, voice/melody playing and other logic functions and then be easily implemented.
FEATURES
♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Single power supply 2.4V – 5.1V Built in a tiny controller Two 4-bit I/O ports, two optional 4-bit output ports are provided 256*4 bits RAM for programming usage are provided 256*4 bits RAM for LCD display usage are provided Maximum 1024k*10 program ROM is provided Readable ROM code data Built in direct 16*64/8*64 LCD driver LCD 1/4 bias, 1/5 bias; 1/8 duty, 1/16 duty Built in a high quality speech synthesizer Adaptive playing speed from 2.5k-40kHz is provided Built in a dual tone melody generator Speech/Dual tone melody mixer is provided which SN6A514 series can play speech and dual tone melody simultaneously ♦ Fixed current D/A output is provided to drive external connected
transistor for sound output ♦ PWM output is provided to drive external connected piezo buzzer
1
February 1, 2001
SN6A514
LCD Controller with Voice/Dual Tone Melody
PIN ASSIGNMENT
Symbol SEG1-SEG56 SEG57/P53SEG60/P50 I/O O O Function Description Seg 1- Seg 56 for LCD driver Option...