ATtiny40 Atmel Corporation, ATtiny40 Datasheet - Page 57

• Manufacturer Part Number: ATtiny40
• Manufacturer: Atmel Corporation

Specifications of ATtiny40

• Flash (kbytes): 4 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 18
• Ext Interrupts: 18
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• 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
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

10.3.2
8263A–AVR–08/10
Alternate Functions of Port B
Table 10-6.
The Port B pins with alternate function are shown in
Table 10-7.
• Port B, Bit 0 – ADC8/PCINT8
• Port B, Bit 1 – ADC9/PCINT9
• Port B, Bit 2 – ADC10/PCINT10
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
• ADC8: Analog to Digital Converter, Channel 8
• PCINT8: Pin Change Interrupt source 8. The PB0 pin can serve as an external interrupt
• ADC9: Analog to Digital Converter, Channel 9
• PCINT9: Pin Change Interrupt source 9. The PB1 pin can serve as an external interrupt
• ADC10: Analog to Digital Converter, Channel 10
source for pin change interrupt 1.
source for pin change interrupt 1.
Port Pin
PB0
PB1
PB3
PB2
Overriding Signals for Alternate Functions in PA[1:0]
Port B Pins Alternate Functions
ADC1 / Analog Comparator Positive Input
PCINT1 • PCIE0 + ADC1D
PA1/ADC1/AIN0/PCINT1
PCINT1 • PCIE0
PCINT1 Input
Alternate Function
ADC8:
PCINT8: Pin Change Interrupt 1, Source 8
ADC9:
PCINT9: Pin Change Interrupt 1, Source 9
ADC10: ADC Input Channel 10
PCINT10:Pin Change Interrupt 1, Source 10
ADC11: ADC Input Channel 11
PCINT11:Pin Change Interrupt 1, Source 11.
0
0
0
0
0
0
0
ADC Input Channel 8
ADC Input Channel 9
.
.
.
Table
10-7.
PCINT0 • PCIE0 + ADC0D
PA0/ADC0/PCINT0
PCINT0 • PCIE0
PCINT0 Input
ADC1 Input
0
0
0
0
0
0
0
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