ATTINY261-20SU Atmel, ATTINY261-20SU Datasheet - Page 79
![IC MCU AVR 2K FLASH 20MHZ 20SOIC](/photos/6/80/68042/453-20-soic_sml.jpg)
ATTINY261-20SU
Manufacturer Part Number
ATTINY261-20SU
Description
IC MCU AVR 2K FLASH 20MHZ 20SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY261-20SU
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
20-SOIC (7.5mm Width)
Processor Series
ATTINY2x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
SPI, USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 55 C
On-chip Adc
10 bit, 11 Channel
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRBC100 - REF DESIGN KIT BATTERY CHARGER770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATSTK505 - ADAPTER KIT FOR 14PIN AVR MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY261-20SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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11.7.4
11.7.5
11.8
2588E–AVR–08/10
Timer/Counter Timing Diagrams
8-bit Input Capture Mode
16-bit Input Capture Mode
cases to consider in the Normal mode, a new counter value can be written anytime. The Output
Compare Unit can be used to generate interrupts at some given time.
The Timer/Counter0 can also be used in an 8-bit Input Capture mode, see
77
The Timer/Counter0 can also be used in a 16-bit Input Capture mode, see
77
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. Timer/Counter Timing Diagram, no Prescaling
Figure 11-8
Figure 11-8. Timer/Counter Timing Diagram, with Prescaler (f
Figure 11-9 on page 80
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
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
clk_I/O
BOTTOM
BOTTOM
/8)
T0
) is therefore shown as a
Table 11-3 on page
Table 11-3 on page
BOTTOM + 1
BOTTOM + 1
75.
75.
79
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