ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 70

• Manufacturer Part Number: ATtiny43U
• Manufacturer: Atmel Corporation

Specifications of ATtiny43U

• Flash (kbytes): 4 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 8 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.25
• Eeprom (bytes): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 0.7 to 5.5
• Operating Voltage (vcc): 0.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

11.3.1
70
ATtiny43U
Alternate Functions of Port A
The Port A pins with alternate function are shown in
Table 11-3.
• Port A, Bit 0 – ADC0/PCINT0
ADC0: Analog to Digital Converter, Channel 0
PCINT0: Pin Change Interrupt source 0. The PA0 pin can serve as an external interrupt source
for pin change interrupt 0.
• Port A, Bit 1 – ADC1/PCINT1
ADC1: Analog to Digital Converter, Channel 1
PCINT1: Pin Change Interrupt source 1. The PA1 pin can serve as an external interrupt source
for pin change interrupt 0.
• Port A, Bit 2 – ADC2/PCINT2
ADC2: Analog to Digital Converter, Channel 2
PCINT2: Pin Change Interrupt source 2. The PA2 pin can serve as an external interrupt source
for pin change interrupt 0.
• Port A, Bit 3 – ADC3/PCINT3
ADC3: Analog to Digital Converter, Channel 3
PCINT3: Pin Change Interrupt source 3. The PA3 pin can serve as an external interrupt source
for pin change interrupt 0.
Port Pin
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
Port A Pins Alternate Functions
Alternate Function
ADC0:
PCINT0:Pin change interrupt 0 source 0.
ADC1:
PCINT1:Pin change interrupt 0 source 1.
ADC2:
PCINT2: Pin change interrupt 0 source 2.
PCINT3: Pin change interrupt 0 source 3.
AIN0:
PCINT4: Pin change interrupt 0 source 4.
AIN1:
PCINT5: Pin change interrupt 0 source 5.
PCINT6: Pin change interrupt 0 source 6.
CLKI:
RESET: Reset pin.
dW:
PCINT7: Pin change interrupt 0 source 7
ADC3: ADC input channel 3.
Analog Comparator Positive Input.
Analog Comparator Negative Input.
ADC input channel 0.
ADC input channel 1.
ADC input channel 2.
External Clock Input.
debugWire I/O.
.
.
.
.
Table 11-3 on page
70.
8048B–AVR–03/09