SN68004

SN68004 Speech Controller „ INTRODUCTION SN68004 is a 4 seconds single chip voice synthesizer IC which contains I/O pins and a tiny controller. By programming through the tiny controller, user’s applications including section combination, trigger modes, output status, and other logic functions can then be easily implemented. „ FEATURES Š Š Š Š Š Š Š Š Š Š Š Š Single power supply 2.4V - 5.1V Built in a tiny controller 4 seconds voice capacity are provided Two 4-bit I/O ports are provided 64*4 bits RAM are provided Maximum 16k program ROM is provided Readable ROM code data Built in a high quality speech synthesizer Adaptive playing speed from 2.5k-20kHz is provided Built in a dual tone melody generator Speech/Dual tone melody mixer is provided Fixed current D/A output is provided to drive external connected transistor for sound output 1 December 20, 2000 SN68004 Speech Controller „ PIN ASSIGNMENT Symbol P20 P21 P22 P23 P30 P31 P32 P33 VDD OSC TEST VSS VO I/O I/O I/O I/O I/O I/O I/O I/O I/O I I I I O Function Description Bit0 of I/O port 2 Bit1 of I/O port 2 Bit2 of I/O port 2 Bit3 of I/O port 2 Bit0 of I/O port 3 Bit1 of I/O port 3 Bit2 of I/O port 3 Bit3 of I/O port 3 Positive power supply Oscillation component connection pin For testing only Negative power supply D/A current output 2 December 20, 2000 SN68004 Speech Controller „ ABSOLUTE MAXIMUM RATING Items Supply Voltage Input Voltage Operating Temperature Storage Temperature Symbol VDD VIN TOP TSTG Min -0.3 VSS-0...