ATtiny88 Atmel Corporation, ATtiny88 Datasheet - Page 280

• 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

Note:
280
0x1A (0x3A)
0x0E (0x2E)
0x0D (0x2D)
0x0C (0x2C)
0x0B (0x2B)
0x0A (0x2A)
Address
0x19 (0x39)
0x18 (0x38)
0x17 (0x37)
0x16 (0x36)
0x15 (0x35)
0x14 (0x34)
0x13 (0x33)
0x12 (0x32)
0x11 (0x31)
0x10 (0x30)
0x0F (0x2F)
0x09 (0x29)
0x08 (0x28)
0x07 (0x27)
0x06 (0x26)
0x05 (0x25)
0x04 (0x24)
0x03 (0x23)
0x02 (0x22)
0x01 (0x21)
0x00 (0x20)
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
2. I/O Registers within the address range 0x00
3. Some of the Status Flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI
4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00
ATtiny48/88
should never be written.
registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
instructions will only operate on the specified bit, and can therefore be used on registers containing such Status Flags. The
CBI and SBI instructions work with registers 0x00 to 0x1F only.
Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The ATtiny48/88 is a com-
plex microcontroller with more peripheral units than can be supported within the 64 location reserved in Opcode for the IN
and OUT instructions. For the Extended I/O space from 0x60
instructions can be used.
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
PORTCR
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Name
PORTD
PORTA
PORTC
PORTB
DDRD
TIFR1
TIFR0
DDRA
DDRC
DDRB
PINA
PIND
PINC
PINB
PORTD7
PORTC7
PORTB7
Bit 7
BBMD
PIND7
PINC7
PINB7
DDD7
DDC7
DDB7
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
PORTD6
PORTC6
PORTB6
Bit 6
BBMC
PIND6
PINC6
PINB6
DDD6
DDC6
DDB6
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
PORTD5
PORTC5
PORTB5
PIND5
PINC5
Bit 5
BBMB
DDD5
DDC5
PINB5
DDB5
ICF1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0x1F are directly bit-accessible using the SBI and CBI instructions. In these
PORTD4
PORTC4
PORTB4
PIND4
PINC4
Bit 4
BBMA
DDD4
DDC4
PINB4
DDB4
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
PORTA3
PORTD3
PORTC3
PORTB3
Bit 3
PUDD
PINA3
PIND3
PINC3
PINB3
DDA3
DDD3
DDC3
DDB3
0xFF in SRAM, only the ST/STS/STD and LD/LDS/LDD
–
–
–
–
–
–
–
–
–
–
–
–
–
–
PORTD2
PORTC2
PORTA2
PORTB2
OCF1B
OCF0B
Bit 2
PUDC
PINA2
PIND2
PINC2
PINB2
DDA2
DDD2
DDC2
DDB2
–
–
–
–
–
–
–
–
–
–
–
–
–
0x3F must be used. When addressing I/O
PORTA1
PORTD1
PORTC1
PORTB1
OCF1A
OCF0A
PIND1
PINC1
Bit 1
PUDB
PINA1
PINB1
DDA1
DDD1
DDC1
DDB1
–
–
–
–
–
–
–
–
–
–
–
–
PORTD0
PORTC0
PORTA0
PORTB0
Bit 0
PINA0
PIND0
PINC0
PINB0
PUDA
DDA0
DDD0
DDC0
DDB0
TOV1
TOV0
–
–
–
–
–
–
–
–
–
–
–
–
8008H–AVR–04/11
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