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APEXX12 Datasheet(PDF) 4 Page - Aplus Intergrated Circuits

Part No. APEXX12
Description  very low cost voice and melody synthesizer with 4-bits CPU
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Maker  APLUS [Aplus Intergrated Circuits]
Homepage  http://www.aplusinc.com.tw
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 4 page
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APExx12 Series
Rev 1.3
2003/8/18
3
3.0 Pin Description
Pad Name
Pin Attr.
Description
PWM2/Cout
O
PWM2 output, or Current Output of Audio.
PWM1
O
PWM1 output.
Vdd1~2
Power
Power supply during operation.
PRA0~3
PRD0~3
I/O
I/O port can be programmed to input/output individually.
Input type with weak pull-low or fix-input-floating capability.
Buffer Output type.
PRB0, PRB2
I/O
I/O port can be configured to input/output individually.
Input type with weak pull-low or fix-input-floating capability.
Buffer Output type.
PRB1 / IR
I/O
I/O port can be configured to input/output individually.
Input type with weak pull-low or fix-input-floating capability.
Buffer Output type.
Mask option selected as an IR Carrier Output with 38k / 56kHz
PRB3 / Reset
I/O
I/O port can be configured to input/output individually.
Input type with weak pull-low or fix-input-floating capability.
Buffer Output type.
Mask option selected as an external RESET pin with weak pull-low
capability.
OSC
I
RM mode Oscillator input
GND1~3
Power
Ground Potential
4.0 DC Characteristics
Symbol
Parameter
Vdd
Min.
Typ.
Max.
Unit
Condition
Vdd
Operating voltage
2.4
3
5.5
V
depending on Freq.
3
1
Isb
Standby
4.5
1
uA
4MHz, RM,
in HALT Mode
3
2
Iop
Supply
current
Operating
4.5
7
mA
4MHz, RM,
IO Floating
3
3
Iih
Input current
(Internal pull low)
4.5
10
uA
Input ports with weak
pull-low
3
-3
Ioh
Output-high current
4.5
-10
3
7
Iol
Output-low current
4.5
19
mA
4MHz, RM
(IO ports)
3
0.8 ~ 4.8
Cout
DAC output current
(8-level option)
4.5
0.9 ~ 6.5
mA
4MHz, RM
(Full scale)
dF/F
Frequency stability
-5
5
%
Fosc(3v- 2.4v)
Fosc (3v)
dF/F
Fosc lot variation
-10
10
%
Vdd=3V, Rosc=180k,
4MHz




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