AT90PWM81-16MF Atmel, AT90PWM81-16MF Datasheet - Page 78

• Manufacturer Part Number: AT90PWM81-16MF
• Description: IC MCU AVR 8K FLASH ISP 32QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM81-16MF

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-MLF®, QFN
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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