ATTINY261-20MU Atmel, ATTINY261-20MU Datasheet - Page 105

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

Specifications of ATTINY261-20MU

• 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-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Processor Series: ATTINY2x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: 2-Wire, SPI, USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 11 Channel
• Package: 32MLF EP
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 3.3|5 V
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRBC100 - REF DESIGN KIT BATTERY CHARGER770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATSTK505 - ADAPTER KIT FOR 14PIN AVR MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2588E–AVR–08/10
Figure 12-14. PWM6 Mode, Single-slope Operation, Timing Diagram
The general I/O port function is overridden by the Output Compare value (OC1x / OC1x) from
the Dead Time Generator if either of the COM1x1:0 bits are set. The Output Compare pins can
also be overriden by the Output Compare Override Enable bits OC1OE5:OC1OE0. If an Over-
ride Enable bit is cleared, the actual value from the port register will be visible on the port pin
and, if the Override Enable bit is set, the Output Compare pin is allowed to be connected on the
port pin. The Output Compare Pin configurations are described in
Table
Table 12-5.
Table 12-6.
TCNT1
OCW1A
OC1A Pin
OC1OE1
OC1A Pin
OC1B Pin
OC1B Pin
OC1D Pin
OC1OE0
OC1OE2
OC1OE3
OC1OE4
OC1D Pin
OC1OE5
COM1A1
0
0
1
1
COM1B1
0
0
1
1
12-7.
Configuration of Output Compare Pins OC1A and OC1A in PWM6 Mode
Configuration of Output Compare Pins OC1B and OC1B in PWM6 Mode
COM1A0
0
1
0
1
COM1B0
0
1
0
1
OC1A Pin (PB0)
Disconnected
OC1A •
OC1A •
OC1A •
OC1B Pin (PB2)
Disconnected
OC1A •
OC1A •
OC1A •
OC1OE0
OC1OE0
OC1OE0
OC1OE2
OC1OE2
OC1OE2
OC1A Pin (PB1)
Disconnected
OC1A •
OC1A •
OC1A •
OC1B Pin (PB3)
Disconnected
OC1A •
OC1A •
OC1A •
Table
12-5,
OC1OE1
OC1OE1
OC1OE1
OC1OE3
OC1OE3
OC1OE3
Table 12-6
and
105