ATTINY44-20PU Atmel, ATTINY44-20PU Datasheet - Page 109
ATTINY44-20PU
Manufacturer Part Number
ATTINY44-20PU
Description
IC MCU AVR 4K FLASH 20MHZ 14-DIP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY44-20PU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, 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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
14-DIP (0.300", 7.62mm)
Package
14PDIP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
20 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
12
Interface Type
SPI/USI
On-chip Adc
8-chx10-bit
Number Of Timers
2
For Use With
ATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8006K–AVR–10/10
Table 12-2.
Table 12-3
PWM mode.
Table 12-3.
Note:
Table 12-4
correct or the phase and frequency correct, PWM mode.
Table 12-4.
Note:
COM1A1/COM1B1
COM1A1/COM1B1
COM1A1/COM1B1
1. A special case occurs when OCR1A/OCR1B equals TOP and COM1A1/COM1B1 is set. In
1. A special case occurs when OCR1A/OCR1B equals TOP and COM1A1/COM1B1 is set.
0
0
1
1
0
0
1
1
0
0
1
1
this case the compare match is ignored, but the set or clear is done at BOTTOM.
Mode” on page 97
“Phase Correct PWM Mode” on page 99
shows the COM1x1:0 bit functionality when the WGM13:0 bits are set to the phase
shows the COM1x1:0 bit functionality when the WGM13:0 bits are set to the fast
Compare Output Mode, non-PWM
Compare Output Mode, Fast PWM
Compare Output Mode, Phase Correct and Phase & Frequency Correct PWM
COM1A0/COM1B0
COM1A0/COM1B0
COM1A0/COM1B0
for more details.
0
1
0
1
0
1
0
1
0
1
0
1
Normal port operation, OC1A/OC1B disconnected.
Toggle OC1A/OC1B on Compare Match.
Clear OC1A/OC1B on Compare Match (Set output to
low level).
Set OC1A/OC1B on Compare Match (Set output to
high level).
Normal port operation, OC1A/OC1B disconnected.
WGM13=0: Normal port operation, OC1A/OC1B
disconnected.
WGM13=1: Toggle OC1A on Compare Match, OC1B
reserved.
Clear OC1A/OC1B on Compare Match, set
OC1A/OC1B at BOTTOM (non-inverting mode)
Set OC1A/OC1B on Compare Match, clear
OC1A/OC1B at BOTTOM (inverting mode)
Normal port operation, OC1A/OC1B disconnected.
WGM13=0: Normal port operation, OC1A/OC1B
disconnected.
WGM13=1: Toggle OC1A on Compare Match, OC1B
reserved.
Clear OC1A/OC1B on Compare Match when up-
counting. Set OC1A/OC1B on Compare Match when
downcounting.
Set OC1A/OC1B on Compare Match when up-
counting. Clear OC1A/OC1B on Compare Match
when downcounting.
Description
Description
Description
for more details.
(1)
ATtiny24/44/84
“Fast PWM
109
(1)
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