AU1564A Datasheet | Apuls Intergrated Circuits

Description : The AU1564, AU1564A, AU2064, AU2064A is a single chip voice synthesizer with 4-bit microprocessor. That can synthesize voice up to 15, 20 seconds by ALPHA qualified coding algorithm (LOGPCM). The 4-bit microprocessor has various feature including 4-bit ALU, 1K×15 bits ROM, 64×4 bits RAM, I/O port, timer, clock generator, LCD driver, etc. The instruction set with 78 instructions. With the half function can minimize power dissipation. Features : 1. Single power supply can operate from 2.4V through 6V 2. The total voice duration is about 15, 20 seconds could be partitioned up to 64 sections (AU1564, AU1564A -->15 seconds, AU2064, AU2064A -->20 seconds) 3. The voice can be triggered by microprocessor instructions 4. Current output could drive 8 ohm speaker with a transistor, VOUT could drive buzzer or 64 ohm directly. 5. LCD driver provided, up to 3× 24=72 segments. Build-in HALVER circuitry. 6. Build-in clock generator 7. Internal ROM: 1024×15 bits Internal RAM: 64×4 bits 8. Two 4-bit input ports (AU1564, AU1564A has no S4 pad) 9. Two 4-bit I/O ports 10. One 4-bit output port 11. One control output pins 12. 78 instructions 13. 4-level subroutine nesting (also used for interrupt) 14. Two external factors (INT, S & M port) for interrupt 15. Two internal factors (Timer , Divider) for interrupt 16. Three current output level 1.5m A, 3m A, 4.5m A is mask option (full scale). (AU1564, AU1564A has no COUT output function) Block Diagram : Rev 2.0 AU Series LCD mon Plate Usage: 1 2 3 Alternating frequency Voice Trigger: The voice circuitry will be Triggered in the rising edge of TRG signal. The Voice section address must be placed on I/OA and I/OB port. Static Yes No No 32Hz 1/2 duty Yes Yes No 32Hz 1/3 duty Yes Yes Yes 43Hz I/OB2 I/OB1 I/OA4 I/OA3 I/OA2 I/OA1 (MSB) (LSB) a)In power on state, TRG signal is reset to "LOW" level. TRG will stay at low level until the program set it to "HIGH" level. b) Before triggering the voice circuitry, used the OIOA and...