SN6A297 Datasheet, PDF (1/6 Pages) SONiX Technology Company – LCD Controller with Voice/Dual Tone Melody

SN6A297
LCD Controller with Voice/Dual Tone Melody
„ INTRODUCTION
SN6A297 is a single chip voice/dual tone melody synthesizer IC with 8*40 direct
drive capability which contains two 4-bit I/O ports, one 4-bit output port 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
Š Single power supply 2.4V – 5.1V
Š Built in a tiny controller
Š Two 4-bit I/O ports are provided, one 4-bit output ports are provided
Š 272*4 bits RAM for programming usage are provided (page0~15, m8~m15
of page18 and page21)
Š 80*4 bits RAM for LCD display usage are provided
Š Maximum 108k*10 program ROM is provided
Š Readable ROM code data
Š Built in direct 8*40 LCD driver
Š LCD 1/4 bias; 1/4 duty
Š Built in a high quality speech synthesizer
Š Adaptive playing speed from 2.5k-40kHz is provided
Š Built in a dual tone melody generator
Š Speech/Dual tone melody mixer is provided which SN6A297 can play
speech and dual tone melody simultaneously
Š Fixed current D/A output is provided to drive external connected transistor
for sound output
1
May 24, 2001