Apuls Intergrated Circuits AU1564
The AU1564, AU1564A, AU2064, AU2064A is a single chip voice synthesizer with 4-bit microprocessor. 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.
| Part No. |
AU1564 |
| Datasheet |
AU1564
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| Manufacturer |
 Apuls Intergrated Circuits |
| Description |
single chip voice synthesizer with 4-bit microprocessor |
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GENERAL DESCRIPTION
: That can synthesize voice up to 15, 20 seconds by ALPHA qualified coding algorithm (LOGPCM). 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.
