ATmega88 Atmel Corporation, ATmega88 Datasheet - Page 81

• Manufacturer Part Number: ATmega88
• Manufacturer: Atmel Corporation

Specifications of ATmega88

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 24
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 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: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• 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: 3
• Output Compare Channels: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

14.3.2
2545T–AVR–05/11
Alternate functions of port C
Notes:
Table 14-5.
The port C pins with alternate functions are shown in
Table 14-6.
The alternate pin configuration is as follows:
Signal
name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Port pin
PC6
PC5
PC4
PC3
PC2
PC1
PC0
1. INTRC means that one of the internal RC Oscillators are selected (by the CKSEL fuses),
EXTCK means that external clock is selected (by the CKSEL fuses).
PB3/MOSI/
OC2/PCINT3
SPE • MSTR
PORTB3 • PUD
SPE • MSTR
0
SPE • MSTR +
OC2A ENABLE
SPI MSTR OUTPUT
+ OC2A
PCINT3 • PCIE0
1
PCINT3 INPUT
SPI SLAVE INPUT
–
Overriding signals for alternate functions in PB3..PB0.
Port C pins alternate functions.
Alternate function
RESET (reset pin)
PCINT14 (pin change interrupt 14)
ADC5 (ADC input channel 5)
SCL (2-wire serial bus clock line)
PCINT13 (pin change interrupt 13)
ADC4 (ADC input channel 4)
SDA (2-wire serial bus data input/output line)
PCINT12 (pin change interrupt 12)
ADC3 (ADC Input Channel 3)
PCINT11 (Pin Change Interrupt 11)
ADC2 (ADC input channel 2)
PCINT10 (pin change interrupt 10)
ADC1 (ADC input channel 1)
PCINT9 (pin change interrupt 9)
ADC0 (ADC input channel 0)
PCINT8 (pin change interrupt 8)
PB2/SS/
OC1B/PCINT2
SPE • MSTR
PORTB2 • PUD
SPE • MSTR
0
OC1B ENABLE
OC1B
PCINT2 • PCIE0
1
PCINT2 INPUT
SPI SS
–
Table
PB1/OC1A/
PCINT1
0
0
0
0
OC1A ENABLE
OC1A
PCINT1 • PCIE0
1
PCINT1 INPUT
–
14-6.
ATmega48/88/168
PB0/ICP1/
PCINT0
0
0
0
0
0
0
PCINT0 • PCIE0
1
PCINT0 INPUT
ICP1 INPUT
–
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