ATTINY861-20PU Atmel, ATTINY861-20PU Datasheet - Page 82
ATTINY861-20PU
Manufacturer Part Number
ATTINY861-20PU
Description
Microcontrollers (MCU) 8kB Flash 0.512kB EEPROM 16 I/O Pins
Manufacturer
Atmel
Specifications of ATTINY861-20PU
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
2-Wire/SPI/USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRMC320
Minimum Operating Temperature
- 40 C
On-chip Adc
11-ch x 10-bit
Program Memory Type
Flash
Program Memory Size
8 KB
Package / Case
PDIP-20
Controller Family/series
AVR Tiny
Core Size
8 Bit
No. Of I/o's
16
Eeprom Memory Size
512Byte
Ram Memory Size
512Byte
Cpu Speed
20MHz
No. Of Timers
2
Rohs Compliant
Yes
Package
20PDIP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
20 MHz
Ram Size
512 Byte
Operating Temperature
-40 to 85 °C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY861-20PU
Manufacturer:
Atmel
Quantity:
135
Company:
Part Number:
ATTINY861-20PU ES
Manufacturer:
ATMEL
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ATtiny261/461/861
The following code examples show how to do an atomic read of the TCNT0 register contents.
Reading any of the OCR0 register can be done by using the same principle.
Note:
The assembly code example returns the TCNT0H/L value in the r17:r16 register pair.
Assembly Code Example
TIM0_ReadTCNT0:
C Code Example
unsigned int TIM0_ReadTCNT0( void )
{
}
; Save global interrupt flag
in r18,SREG
; Disable interrupts
cli
; Read TCNT0 into r17:r16
in r16,TCNT0L
in r17,TCNT0H
; Restore global interrupt flag
out SREG,r18
ret
unsigned char sreg;
unsigned int i;
/* Save global interrupt flag */
sreg = SREG;
/* Disable interrupts */
_CLI();
/* Read TCNT0 into i */
i = TCNT0L;
i |= ((unsigned int)TCNT0H << 8);
/* Restore global interrupt flag */
SREG = sreg;
return i;
See
“Code Examples” on page
6.
2588E–AVR–08/10
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