ATTINY461A-MU Atmel, ATTINY461A-MU Datasheet - Page 104

• Manufacturer Part Number: ATTINY461A-MU
• Description: IC MCU AVR 4K FLASH 20MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY461A-MU

• 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: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 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: ATTINY4x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Operating Supply Voltage: 1.8 V to 5.5 V
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.9
104
Timer/Counter Timing Diagrams
ATtiny261A/461A/861A
Table 12-7.
The Timer/Counter is a synchronous design and the timer clock (clk
clock enable signal in the following figures. The figures include information on when Interrupt
Flags are set.
Figure 12-15
sequence close to the MAX value in all modes other than Phase and Frequency Correct PWM
Mode.
Figure 12-15. Timer/Counter Timing Diagram, no Prescaling
Figure 12-16
than Phase and Frequency Correct PWM Mode.
Figure 12-16. Timer/Counter Timing Diagram, with Prescaler (f
Figure 12-17
TCNTn
(clk
COM1D1
0
0
1
1
TCNTn
TOVn
(clk
TOVn
clk
clk
clk
clk
PCK
PCK
PCK
Tn
PCK
Tn
/1)
/8)
contains timing data for basic Timer/Counter operation. The figure shows the count
shows the setting of OCF1A, OCF1B and OCF1D in all modes.
shows the same timing data, but with the prescaler enabled, in all modes other
Configuration of Output Compare Pins OC1D and OC1D in PWM6 Mode
COM1D0
0
1
0
1
TOP - 1
TOP - 1
OC1D Pin (PB4)
Disconnected
OC1A •
OC1A •
OC1A •
TOP
TOP
OC1OE4
OC1OE4
OC1OE4
BOTTOM
clkT1
BOTTOM
/8)
Disconnected
OC1A •
OC1A •
OC1A •
OC1D Pin (PB5)
T1
) is therefore shown as a
OC1OE5
OC1OE5
OC1OE5
BOTTOM + 1
BOTTOM + 1
8197B–AVR–01/10