Integrated Circuits Inc.
API4000-6
http : //
www.aplusinc.com.tw
Tel : 886-2-2782-9266
1
API4000-6 340" VOICE OTP
API4000-6
IC is a 340 seconds ( Voive sample rate is in 6 khz ) and very low cost voice
synthesizer with 4-bit microprocessor. It has variousfeatures including 4-bit ALU, ROM, RAM, I/O
ports, timers, clock generator, watchdog timer(WDT), voice synthesizer, etc. It consists of 22
instructions in the device. With CMOS technology and halt function can minimize power dissipation.
Its architecture is similar to RISC,with two stages of instruction pipeline. It allows all instructions to
be executed in a single cycle, except for program branches and data table read instructions (which
need two instruction cycles).
Feature :
Single power supply can operate from 2.4V through 4.5V.
Voice length : 340 seconds ( Voive sample rate is in 6 khz ) .
Internal Program ROM: 4K x 10-bit.
Data Registers:
96 x 4-bit data RAM (00-1Fh plus 40h-7Fh)
Unbanked special function registers (SFR) range: 20h-3Fh
I/O Ports:
PRA: 4-bit I/O Port A (2Bh)
PRB: 4-bit Output Port B (2Dh)
PRC: 4-bit Input Port C (2Fh)
On-chip clock generator: Resistive Clock Drive(RM)
Timer: 1
Timer0: a 9-bit auto-reload timer/counter.
Stack: 2-level subroutine nesting.
HALT and Release from HALT function to reduce power consumption.
Watch Dog Timer (WDT).
Voice format : Linear Scale 5 bit output .
Voice Sample Rate Range :4K - 22KHz .
Tg mode :Level / Edge ,Hold / Unhold , Retrigger / Ir- Retrigger .
Integrated Circuits Inc.
API4000-6
http : //
www.aplusinc.com.tw
Tel : 886-2-2782-9266
3
VCC
GND
PRA
COUT
R
8050
8 ohm
R(470~820 ohm)
VCC
Description :
Item
Explain
Item
Explain
VDD
Power supply during operation
PTON
Download data Pin
VSS
Ground Potential
OEB
Download data Pin
A0-A3 4 bit I/O ( PRA)
OSCI
Download data Pin
B0-B3 4 bit output (PRB)
SRL
Download data Pin
C0-C3 4 bit input (PRC)
WE/
Download data Pin
COUT Current output
S_0
Download data Pin
PWM1 PWM1 ( Connect to speaker and buzzer )
D7
Download data Pin
PWM2 PWM2 ( Connect to speaker and buzzer )
RESETB Reset Pin (Low Active)
Application Circuit 1: (Standard)
Integrated Circuits Inc.
API4000-6
http : //
www.aplusinc.com.tw
Tel : 886-2-2782-9266
6
Entelechy Picture:(
API4000-6
Target Board )
Port C: 0 ,1 ,2 , 3
Port A(I ) :0 ,1 ,2 , 3
Port B: 0 ,1 ,2 , 3
Port A ( O ) :0 ,1 ,2 , 3
API4000-6
COUT
PWM
Port A ( I ) : Connect
to Vcc or Ground
Port A ( O ) : Connect
to Vcc or Ground
Port B: Connect to
Vcc or Ground
Port C: Connect to
Vcc or Ground
PortC: 3,2,1,0
PortA(I ) :3,2,1,0
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