au1564a Aplus Integrated circuits Inc., au1564a Datasheet - Page 6

• Manufacturer Part Number: au1564a
• Description: Single Chip Voice Synthesizer With 4-bit Microprocessor
• Manufacturer: Aplus Integrated circuits Inc.

Pad Description:
Pad No.
32-33
35-36
37-38
40-43
50-51
52-53
55-58
59-62
64-65
7-30
2-3
31
34
39
44
45
46
47
48
49
54
63
1
4
5
6
IOA1-4/S0-3
IOB1-2/S4-5
Pad Name
INT/BUSY
OSCOUT
SEG1-24
COM2-3
CUP1-2
VSS1-2
RESET
VOUT1
VOUT2
OSCIN
IOB3-4
COM1
VOSC
COUT
VSS2
GND
M1-4
VDD
VDD
S4-3
TRG
P1-4
S2-1
N.C.
N.C.
I/O
I/O
I/O
I/O
I/O
O
O
O
G
G
O
O
G
O
O
P
P
I
I
I
I
I
I
I
I
I
24 segment outputs for LCD panel
Positive Power supply
Voltage Halver Capacitor
Crystal Oscillator Input, 32768Hz
Crystal Oscillator Output, 32768Hz
Common plate for LCD panel
Positive Power supply
Common plate for LCD panel
Backup negative power supply
Negative power supply
Input port
Audio output enable signal. Latch voice Section address
Voice section address. Internal pull-up
System reset
Voice oscillator input
Audio signal current output
Audio signal voltage output
Negative power supply
Audio signal voltage output
Voice section address. Internal pull-up.
I/O port, 2 bits
Voice busy status, CPU interrupt request
Output port
Input port
Input port
5
Function Description
AU Series
Rev 2.0