ATtiny25 Automotive Atmel Corporation, ATtiny25 Automotive Datasheet - Page 192

• Manufacturer Part Number: ATtiny25 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATtiny25 Automotive

• Flash (kbytes): 2 Kbytes
• Pin Count: 8
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 6
• Ext Interrupts: 6
• 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): 0.12
• Eeprom (bytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 5
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

192
ATtiny25/45/85
7
8
9
10 I/O Ports .................................................................................................. 46
11 External Interrupts ................................................................................. 58
12 8-bit Timer/Counter0 with PWM ............................................................ 61
Power Management and Sleep Modes ................................................. 31
System Control and Reset .................................................................... 35
Interrupts ................................................................................................ 45
7.1
7.2
7.3
7.4
7.5
7.6
7.7
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
9.1
10.1
10.2
10.3
10.4
11.1
11.2
11.3
11.4
12.1
12.2
MCU Control Register – MCUCR ....................................................................31
Idle Mode .........................................................................................................32
ADC Noise Reduction Mode ............................................................................32
Power-down Mode ...........................................................................................32
Limitations .......................................................................................................33
Power Reduction Register ...............................................................................33
Minimizing Power Consumption ......................................................................34
Resetting the AVR ...........................................................................................35
Reset Sources .................................................................................................35
Power-on Reset ...............................................................................................36
External Reset .................................................................................................37
Brown-out Detection ........................................................................................38
Watchdog Reset ..............................................................................................39
MCU Status Register – MCUSR ......................................................................40
Internal Voltage Reference ..............................................................................40
Watchdog Timer ..............................................................................................41
Timed Sequences for Changing the Configuration of the Watchdog Timer ....44
Interrupt Vectors in ATtiny25/45/85 .................................................................45
Introduction ......................................................................................................46
Ports as General Digital I/O .............................................................................47
Alternate Port Functions ..................................................................................52
Register Description for I/O-Ports ....................................................................58
MCU Control Register – MCUCR ....................................................................59
General Interrupt Mask Register – GIMSK ......................................................59
General Interrupt Flag Register – GIFR ..........................................................60
Pin Change Mask Register – PCMSK .............................................................60
Overview ..........................................................................................................61
Timer/Counter Clock Sources .........................................................................62
7598H–AVR–07/09