ATtiny461A Atmel Corporation, ATtiny461A Datasheet - Page 78
ATtiny461A
Manufacturer Part Number
ATtiny461A
Description
Manufacturer
Atmel Corporation
Specifications of ATtiny461A
Flash (kbytes)
4 Kbytes
Pin Count
20
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
8
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)
0.25
Eeprom (bytes)
256
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
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
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Price
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Manufacturer:
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Manufacturer:
Atmel
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1 974
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11.7.4
11.7.5
11.8
78
Timer/Counter Timing Diagrams
ATtiny261A/461A/861A
8-bit Input Capture Mode
16-bit Input Capture Mode
The Timer/Counter0 can also be used in an 8-bit Input Capture mode, see
76
The Timer/Counter0 can also be used in a 16-bit Input Capture mode, see
76
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.
shows the count sequence close to the MAX value.
Figure 11-7.
Figure 11-8
Figure 11-8.
Figure 11-9 on page 79
TCNTn
(clk
TCNTn
(clk
TOVn
TOVn
clk
clk
clk
clk
for bit settings. For full description, see the section
for bit settings. For full description, see the section
I/O
I/O
I/O
Tn
I/O
Tn
/1)
/8)
shows the same timing data, but with the prescaler enabled.
Figure 11-7
Timer/Counter Timing Diagram, no Prescaling
Timer/Counter Timing Diagram, with Prescaler (f
MAX - 1
MAX - 1
shows the setting of OCF0A and OCF0B in Normal mode.
contains timing data for basic Timer/Counter operation. The figure
MAX
MAX
“Input Capture Unit” on page
“Input Capture Unit” on page
BOTTOM
BOTTOM
clk_I/O
T0
/8)
) is therefore shown as a
Table 11-3 on page
Table 11-3 on page
BOTTOM + 1
BOTTOM + 1
8197C–AVR–05/11
74.
74.
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