ATtiny24A Atmel Corporation, ATtiny24A Datasheet - Page 78

• Manufacturer Part Number: ATtiny24A
• Manufacturer: Atmel Corporation

Specifications of ATtiny24A

• Flash (kbytes): 2 Kbytes
• Pin Count: 14
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 12
• Ext Interrupts: 12
• 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): 0.12
• Eeprom (bytes): 128
• 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: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

78
ATtiny24A/44A/84A
Figure 11-9.
Figure 11-10 on page 78
except CTC mode and PWM mode, where OCR0A is TOP.
Figure 11-10. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f
Figure 11-11 on page 78
and fast PWM mode where OCR0A is TOP.
Figure 11-11. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with
TCNTn
TCNTn
TCNTn
(clk
(clk
OCRnx
OCRnx
(clk
OCFnx
(CTC)
OCFnx
TOVn
clk
clk
clk
clk
clk
clk
I/O
I/O
I/O
I/O
I/O
Tn
Tn
I/O
Tn
/8)
/8)
/8)
Timer/Counter Timing Diagram, with Prescaler (f
Prescaler (f
OCRnx - 1
TOP - 1
MAX - 1
shows the setting of OCF0A and the clearing of TCNT0 in CTC mode
shows the setting of OCF0B in all modes and OCF0A in all modes
clk_I/O
/8)
OCRnx
TOP
MAX
OCRnx Value
TOP
OCRnx + 1
BOTTOM
BOTTOM
clk_I/O
/8)
BOTTOM + 1
BOTTOM + 1
8183D–AVR–04/11
OCRnx + 2
clk_I/O
/8)