AU Series
General 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 1.5mA, 3mA, 4.5mA is mask option (full scale).
(AU1564,
AU1564A
has no COUT output function)
Block Diagram :
2
Rev 2.0
APLUS [ APLUS INTERGRATED CIRCUITS ]
