ATTINY26-16PI Atmel, ATTINY26-16PI Datasheet - Page 76

• Manufacturer Part Number: ATTINY26-16PI
• Description: IC AVR MCU 2K 16MHZ IND 20-DIP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY26-16PI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

76
ATtiny26(L)
Table 36. PWM Outputs OCR1x = $00 or OCR1C, x = A or B
In PWM mode, the Timer Overflow Flag – TOV1, is set as in normal Timer/Counter mode. Timer
Overflow Interrupt1 operates exactly as in normal Timer/Counter mode, i.e., it is executed when
TOV1 is set provided that Timer Overflow Interrupt and global interrupts are enabled. This also
applies to the Timer Output Compare flags and interrupts.
The frequency of the PWM will be Timer Clock 1 Frequency divided by (OCR1C value + 1). See
the following equation:
Resolution shows how many bit is required to express the value in the OCR1C Register. It is cal-
culated by following equation
COM1x1
0
0
1
1
1
1
COM1x0
1
1
0
0
1
1
Resolution
OCR1C
OCR1C
OCR1C
OCR1x
$00
$00
$00
f
PWM
PWM
=
----------------------------------- -
(
= log
OCR1C + 1
Output OC1x
f
TCK1
2
(OCR1C + 1)
H
H
H
L
L
L
)
Not connected
Not connected
Not connected
Not connected
Output OC1x
H
L
1477K–AVR–08/10