ATtiny261 Atmel Corporation, ATtiny261 Datasheet - Page 105

• Manufacturer Part Number: ATtiny261
• Manufacturer: Atmel Corporation

Specifications of ATtiny261

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• 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: No
• 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: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

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