ATTINY44A-CCUR Atmel, ATTINY44A-CCUR Datasheet - Page 85

• Manufacturer Part Number: ATTINY44A-CCUR
• Description: MCU AVR 4KB FLASH 20MHZ 15UFBGA
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY44A-CCUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 12
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12. 16-bit Timer/Counter1
12.1
12.2
8183C–AVR–03/11
Features
Overview
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The 16-bit Timer/Counter unit allows accurate program execution timing (event management),
wave generation, and signal timing measurement.
A simplified block diagram of the 16-bit Timer/Counter is shown in
actual placement of I/O pins, refer to
I/O Registers, including I/O bits and I/O pins, are shown in bold. The device-specific I/O Register
and bit locations are listed in the
Figure 12-1.
True 16-bit Design (i.e., Allows 16-bit PWM)
Two independent Output Compare Units
Double Buffered Output Compare Registers
One Input Capture Unit
Input Capture Noise Canceler
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse Width Modulator (PWM)
Variable PWM Period
Frequency Generator
External Event Counter
Four independent interrupt Sources (TOV1, OCF1A, OCF1B, and ICF1)
16-bit Timer/Counter Block Diagram
Timer/Counter
TCCRnA
OCRnA
OCRnB
TCNTn
ICRn
=
=
“Register Description” on page
Direction
Count
Clear
“Pinout of ATtiny24A/44A/84A” on page
Control Logic
TOP
=
TCCRnB
Values
BOTTOM
Fixed
TOP
ICFn (Int.Req.)
clk
Detector
Edge
=
Tn
0
ATtiny24A/44A/84A
OCnA
(Int.Req.)
OCnB
(Int.Req.)
TOVn
(Int.Req.)
Clock Select
106.
Generation
Generation
( From Prescaler )
Waveform
Waveform
Canceler
Detector
Noise
Edge
Figure 12-1 on page
Comparator Ouput )
( From Analog
2. CPU accessible
OCnA
OCnB
ICPn
Tn
85. For
85