AT90PWM161 Atmel Corporation, AT90PWM161 Datasheet - Page 78

• Manufacturer Part Number: AT90PWM161
• Manufacturer: Atmel Corporation

Specifications of AT90PWM161

• Flash (kbytes): 16 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 20
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 3
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.25
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 1
• Output Compare Channels: 8
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

9.3.4
78
AT90PWM81
Alternate Functions of Port E
Table 9-8.
The Port E pins with alternate functions are shown in
Table 9-9.
The alternate pin configuration is as follows:
• AREF/ADC6, Bit 3
AREF: Analog reference voltage. See
ADC6, Analog to Digital Converter, input channel 6
This pin can only be used as a digital output pin. It cannot be read as a digital input.
• XTAL2/ACMP1M/PSCINr – Bit 2
XTAL2: Chip clock Oscillator pin 2. Used as clock pin for crystal Oscillator or Low-frequency crystal
Oscillator. When used as a clock pin, the pin can not be used as an I/O pin.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Port Pin
PE2
PE1
PE0
Alternate Function
XTAL2: XTAL Output
ACMP1M (Analog Comparator 1 Negative Input)
PCSINr (PSCR Digital Input)
XTAL1: XTAL Input
PCSIN2 (PSC 2 Digital Input)
ACMP1_OUT (Analog Comparator 1 Output.)
RESET (Reset Input)
OCD (On Chip Debug I/O)
INT2 (External Interrupt 2 Input)
Overriding Signals for Alternate Functions in PD3..PD0
Port E Pins Alternate Functions
PD3/ADC1/
ACMP2_OUT
Table 17-3 on page 217
PD2/ADC0/
ACMP1
.
Table
9-9.
PD1/PSCOUTR0/
PSCINrB
for the definition of this pin.
PD0/ACMP2_OUT/
SS/CLKO
7734P–AVR–08/10