ATTINY261-20MUR Atmel, ATTINY261-20MUR Datasheet - Page 113

• Manufacturer Part Number: ATTINY261-20MUR
• Description: IC MCU AVR 2K FLASH 20MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY261-20MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2588E–AVR–08/10
Table 12-10
are set to Phase and Frequency Correct PWM Mode.
Table 12-10. Compare Output Mode, Phase and Frequency Correct PWM Mode
Table 12-11
are set to single-slope PWM6 Mode. In the PWM6 Mode the same Waveform Output (OCW1A)
is used for generating all waveforms and the Output Compare values OC1A and OC1A are con-
nected on thw all OC1x and OC1x pins as described below.
Table 12-11. Compare Output Mode, Single-Slope PWM6 Mode
Table 12-12
are set to dual-slope PWM6 Mode.I
Table 12-12. Compare Output Mode, Dual-Slope PWM6 Mode
Bits COM1A1 and COM1A0 are shadowed in TCCR1C. Writing to bits COM1A1 and COM1A0
will also change bits COM1A1S and COM1A0S in TCCR1C. Similary, changes written to bits
COM1A1S and COM1A0S in TCCR1C will show here. See
Register C” on page
COM1A1:0
COM1A1:0
COM1A1:0
00
01
10
11
00
01
10
11
00
01
10
11
shows the COM1A1:0 bit functionality when the PWM1A, WGM10 and WGM11 bits
shows the COM1A1:0 bit functionality when the PWM1A, WGM10 and WGM11 bits
shows the COM1A1:0 bit functionality when the PWM1A, WGM10 and WGM11 bits
OCW1A Behaviour
Normal port operation.
Cleared on Compare Match when up-counting.
Set on Compare Match when down-counting.
Cleared on Compare Match when up-counting.
Set on Compare Match when down-counting.
Set on Compare Match when up-counting.
Cleared on Compare Match when down-counting.
OCW1A Behaviour
Normal port operation.
Cleared on Compare Match.
Set when TCNT1 = 0x000.
Cleared on Compare Match.
Set when TCNT1 = 0x000.
Set on Compare Match.
Cleared when TCNT1 = 0x000.
OCW1A Behaviour
Normal port operation.
Cleared on Compare Match when up-counting.
Set on Compare Match when down-counting.
Cleared on Compare Match when up-counting.
Set on Compare Match when down-counting.
Set on Compare Match when up-counting.
Cleared on Compare Match when down-counting.
117.
“TCCR1C – Timer/Counter1 Control
OC1A Pin
Disconnected
OC1x Pin
Disconnected
OC1x Pin
Disconnected
Connected
Connected
Connected
OC1A
OC1A
OC1A
OC1A
OC1A
OC1A
OC1A Pin
Disconnected
Connected
Disconnected
Disconnected
OC1x Pin
Disconnected
OC1A
OC1A
OC1A
OC1x Pin
Disconnected
OC1A
OC1A
OC1A
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