API820G Datasheet, PDF (1/5 Pages) Aplus Intergrated Circuits – tiny-controller-based voice synthesizer IC

API 820G
GENERAL DESCRIPTION
API820G is a tiny-controller-based voice synthesizer IC which contains all the function of API820G series
and has an OTP (One Time Programmable) ROM inside.
FEATURES
• API820G – ROM : 64k x 10 bits (21 sec@6K sample rate).
• Single power supply 2.4V ~ 5.5V.
• Port1 and Port2 with wake-up function.
• Power down mode for saving power consumption.
• Single ROM for voice and program data.
• Readable ROM code data.
• One 6-bit timer overflow control.
• Two stacks for subroutine calling.
• Fixed current D/A to drive external connected transistor for audio output.
• Multiple playing sppeeds in 2KHz ~ 32KHz for voice playback.
• 5-bit ASPCM synthesizer.
• Multiple levels of volume control.
• Multiple playing sppeeds in 2KHz ~ 32KHz for voice playback.
PIN DESCRIPTIONS
Pin NO. I/O
1
I
2
I
3
I
4
I
5
I
Symbol
P1.2/OEB/Mode option
P1.1/PGMB/Mode option
P1.0
VSS
OSC/ACLK
6
I
TEST/Vpp
7
O VO2
8
VO1
9
I
VDD
10
I/O P3.3
11
I/O P3.2
12
I/O P3.1
13
I/O P3.0
14
I/O P2.3
15
I/O P2.2
16
I/O P2.1/Dout
17
I/O P2.0/Din
18
I/O P1.3/Din.out.clk/Mode option
Function
Bit 2 of Port 1 / Program control signal
Bit 1 of Port 1 / Program control signal
Bit 0 of Port 1
Negative power supply.
Oscillation component connection pin /
Program control signal
Test/Programing.
Voice output.
No connect
Positive power supply.
Bit 3 of Port 3.
Bit 2 of Port 3.
Bit 1 of Port 3.
Bit 0 of Port 3.
Bit 3 of Port 2.
Bit 2 of Port 2.
Bit 1 of Port 2 / Program data output signal
Bit 0 of Port 2 / Program data input signal
Bit 3 of Port 1 / Program control signal
1