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AT83SND2CMP3 Datasheet(PDF) 7 Page - ATMEL Corporation

Part # AT83SND2CMP3
Description  Single-Chip MP3 Decoder with Full Audio Interface
PDF  97 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT83SND2CMP3 Datasheet(HTML) 7 Page - ATMEL Corporation

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7
AT83SND2CMP3
7524B–MP3–05/06
Table 7. UART Signal Description
Table 8. Keypad Interface Signal Description
Table 9. System Signal Description
Table 10. Power Signal Description
Signal
Name
Type
Description
Alternate
Function
RXD
I/O
Receive Serial Data
RXD sends and receives data in serial I/O mode 0 and receives data in
serial I/O modes 1, 2 and 3.
P3.0
TXD
O
Transmit Serial Data
TXD outputs the shift clock in serial I/O mode 0 and transmits data in
serial I/O modes 1, 2 and 3.
P3.1
Signal
Name
Type
Description
Alternate
Function
KIN0
I
Keypad Input Line
Holding this pin high or low for 24 oscillator periods triggers a keypad
interrupt.
-
Signal
Name
Type
Description
Alternate
Function
RST
I
Reset Input
Holding this pin high for 64 oscillator periods while the oscillator is
running resets the device. The Port pins are driven to their reset
conditions when a voltage lower than V
IL is applied, whether or not the
oscillator is running.
This pin has an internal pull-down resistor which allows the device to be
reset by connecting a capacitor between this pin and V
DD.
Asserting RST when the chip is in Idle mode or Power-Down mode
returns the chip to normal operation.
-
TST
I
Test Input
Test mode entry signal. This pin must be set to V
DD.
-
Signal
Name
Type
Description
Alternate
Function
VDD
PWR
Digital Supply Voltage
Connect these pins to +3V supply voltage.
-
VSS
GND
Circuit Ground
Connect these pins to ground.
-
PVDD
PWR
PLL Supply voltage
Connect this pin to +3V supply voltage.
-
PVSS
GND
PLL Circuit Ground
Connect this pin to ground.
-
UVDD
PWR
USB Supply Voltage
Connect this pin to +3V supply voltage.
-



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