ATtiny25 Automotive Atmel Corporation, ATtiny25 Automotive Datasheet - Page 71

• 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

7598H–AVR–07/09
Figure 12-8. Timer/Counter Timing Diagram, no Prescaling
Figure 12-9
Figure 12-9. Timer/Counter Timing Diagram, with Prescaler (f
Figure 12-10
mode and PWM mode, where OCR0A is TOP.
Figure 12-10. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f
Figure 12-11
PWM mode where OCR0A is TOP.
TCNTn
TCNTn
TCNTn
(clk
(clk
(clk
OCRnx
TOVn
TOVn
OCFnx
clk
clk
clk
clk
clk
clk
I/O
I/O
I/O
I/O
I/O
I/O
Tn
Tn
Tn
/1)
/8)
/8)
shows the same timing data, but with the prescaler enabled.
shows the setting of OCF0B in all modes and OCF0A in all modes except CTC
shows the setting of OCF0A and the clearing of TCNT0 in CTC mode and fast
OCRnx - 1
MAX - 1
MAX - 1
OCRnx
MAX
MAX
OCRnx Value
OCRnx + 1
BOTTOM
BOTTOM
clk_I/O
ATtiny25/45/85
/8)
BOTTOM + 1
BOTTOM + 1
OCRnx + 2
clk_I/O
/8)
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