ATtiny88 Atmel Corporation, ATtiny88 Datasheet - Page 75

• Manufacturer Part Number: ATtiny88
• Manufacturer: Atmel Corporation

Specifications of ATtiny88

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 28
• Ext Interrupts: 28
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• 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: 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

10.3.4
8008H–AVR–04/11
Alternate Functions of Port D
The Port D pins with alternate functions are shown in
Table 10-11. Port D Pins Alternate Functions
The alternate pin configuration is as follows:
• AIN1/PCINT23 – Port D, Bit 7
AIN1: Analog Comparator Negative Input. Configure the port pin as input with the internal pull-up
switched off to avoid the digital port function from interfering with the function of the Analog
Comparator.
PCINT23: Pin Change Interrupt source 23. The PD7 pin can serve as an external interrupt
source.
• AIN0/PCINT22 – Port D, Bit 6
AIN0: Analog Comparator Positive Input. Configure the port pin as input with the internal pull-up
switched off to avoid the digital port function from interfering with the function of the Analog
Comparator.
PCINT22: Pin Change Interrupt source 22. The PD6 pin can serve as an external interrupt
source.
• T1/PCINT21 – Port D, Bit 5
T1: Timer/Counter1 counter source.
PCINT21: Pin Change Interrupt source 21. The PD5 pin can serve as an external interrupt
source.
• T0/PCINT20 – Port D, Bit 4
T0: Timer/Counter0 counter source.
PCINT20: Pin Change Interrupt source 20. The PD4 pin can serve as an external interrupt
source.
Port Pin
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
Alternate Function
AIN1 (Analog Comparator Negative Input)
PCINT23 (Pin Change Interrupt 23)
AIN0 (Analog Comparator Positive Input)
PCINT22 (Pin Change Interrupt 22)
T1 (Timer/Counter 1 External Counter Input)
PCINT21 (Pin Change Interrupt 21)
T0 (Timer/Counter 0 External Counter Input)
PCINT20 (Pin Change Interrupt 20)
INT1 (External Interrupt 1 Input)
PCINT19 (Pin Change Interrupt 19)
INT0 (External Interrupt 0 Input)
PCINT18 (Pin Change Interrupt 18)
PCINT17 (Pin Change Interrupt 17)
PCINT16 (Pin Change Interrupt 16)
Table
10-11.
ATtiny48/88
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