SN66340 4-Channel Speech Controller INTRODUCTION SN66340 is a 340 seconds single chip 4-channel voice synthesizer IC which contains I/O ports and a tiny controller. By programming through the tiny controller, user’s applications including section combination, trigger modes, output status, high performance melody, multiple voices, and other logic functions can be implemented. FEATURES Single power supply 2.4V – 5.1V Built in a tiny controller 340 seconds voice capacity are provided One 4-bit input port, two 4-bit I/O ports and one 4-bit output port are provided 128*4 bits RAM are provided Maximum 64k program ROM is provided Readable ROM code data Built in a high quality speech synthesizer Four independent voice channels Adaptive playing speed from 4k-40kHz is provided for all 4 channels individually Automatic repetition for every channel A 6-bit*8-bit Multiplier is embed to modulate the volume of synthesized voices Two digital mixers (with saturation control) are provided Two 8-bit current output DA converters (Channel 1 + Channel 2 → DA1, Channel 3 + Channel 4 → DA2 ) System clock: 2M Hz ( R-type or Crystal Option) 1 December 6, 2000 SN66340 4-Channel Speech Controller PIN ASSIGNMENT Symbol I/O Function Description P10 I Bit0 of input port 1 P11 I Bit1 of input port 1 P12 I Bit2 of input port 1 P13 I Bit3 of input port 1 P20 I/O Bit0 of I/O port 2 P21 I/O Bit1 of I/O port 2 P22 I/O Bit2 of I/O port 2 P23 I/O Bit3 of I/O port 2 P30 I/O Bit0 of I/O port 3 P31 I/O Bit1 of I/O port 3 P32 I/O Bit2 of I/O port 3 P33 I/O Bit3 of I/O port 3 P40 O Bit0 of output port 3 P41 O Bit1 of output port 3 P42 O Bit2 of output port 3 P43 O Bit3 of output port 3 VDD I Positive power supply GND I Negative power supply OSC/XIN I Oscillator / Crystal In XOUT O Crystal Out CKSEL I VO1 O Clock type select ‘L’ → R type (1M) ‘H’ → 2M Crystal Internal pull low. D/A current output, for channel 1 and 2 VO2 O D/A current output, for channel 3 and 4 2 December 6, 2000 SN66340 4-Channel Speech Controller ABSOLUTE MAXIMUM RATING Items Symbol Min Max Unit. Supply Voltage VDD-V -0.3 6.0 V Input Voltage VIN VSS-0.3 VDD+0.3 V Operating Temperature TOP -20.0 70.0 o Storage Temperature TSTG -55.0 125.0 o C C ELECTRICAL CHARACTERISTICS Item Sym. Min. Typ. Max. Unit Condition Operating Voltage VDD 2.4 3.0 5.1 V Standby Current ISBY - - 1.0 uA VDD=3V Operating Current IOPR - - 350 uA VDD=3V, no load Input Current of P1 IIH - 3.0 10.0 uA VDD=3V,VIN=3V Drive Current of P2, P3, IOD 1.5 2 - mA VDD=3V,VO=2.4V Sink Current of P2,P3,P4 IOS 2.0 3 - mA VDD=3V,VO=0.4V VO1/VO2 Output Current IVO 2.0 3.0 4.0 mA VDD=3V,VO=0.7V FOSC - 2.0 - P4 Oscillation Freq. 3 MHz VDD=3V December 6, 2000 SN66340 4-Channel Speech Controller BONDING PAD SN66340 Note : The substrate MUST be connected to Vss in PCB layout. 4 December 6, 2000