Datasheet

4
4378CS–AVR–09/08
AT90PWM1
3.1 Pin Descriptions
:
Table 3-1. Pin out description
QFN32 S024 Pin Number Mnemonic Type Name, Function & Alternate Function
5 7 GND Power Ground: 0V reference
20 18 AGND Power Analog Ground: 0V reference for analog part
4 6 VCC power Power Supply:
19 17 AVCC Power
Analog Power Supply: This is the power supply voltage for analog
part
For a normal use this pin must be connected.
21 19 AREF Power
Analog Reference : reference for analog converter . This is the
reference voltage of the A/D converter. As output, can be used by
external analog
88PBOI/O
MISO (SPI Master In Slave Out)
PSCOUT20 output
99PB1I/O
MOSI (SPI Master Out Slave In)
PSCOUT21 output
16 16 PB2 I/O
ADC5 (Analog Input Channel5 )
INT1
23 20 PB3 I/O AMP0- (Analog Differential Amplifier 0 Input Channel )
24 21 PB4 I/O AMP0+ (Analog Differential Amplifier 0 Input Channel )
26 22 PB5 I/O
ADC6 (Analog Input Channel 6)
INT 2
27 23 PB6 I/O
ADC7 (Analog Input Channel 7)
ICP1B (Timer 1 input capture alternate input)
PSCOUT11 output
28 24 PB7 I/O
PSCOUT01 output
ADC4 (Analog Input Channel 4)
SCK (SPI Clock)
29 1 PD0 I/O
PSCOUT00 output
XCK (UART Transfer Clock)
SS_A (Alternate SPI Slave Select)
32 3 PD1 I/O
PSCIN0 (PSC 0 Digital Input )
CLKO (System Clock Output)
14PD2I/O
PSCIN2 (PSC 2 Digital Input)
OC1A (Timer 1 Output Compare A)
MISO_A (Programming & alternate SPI Master In Slave Out)
25PD3I/O
TXD (Dali/UART Tx data)
OC0A (Timer 0 Output Compare A)
SS (SPI Slave Select)
MOSI_A (Programming & alternate Master Out SPI Slave In)