ATTINY261-20PU Atmel, ATTINY261-20PU Datasheet - Page 4
ATTINY261-20PU
Manufacturer Part Number
ATTINY261-20PU
Description
IC MCU AVR 2K FLASH 20MHZ 20-DIP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY261-20PU
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-DIP (0.300", 7.62mm)
Processor Series
ATTINY2x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
128 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
Minimum Operating Temperature
- 40 C
On-chip Adc
11-ch x 10-bit
Data Rom Size
128 B
Height
4.95 mm
Length
26.92 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Width
7.11 mm
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRBC100 - REF DESIGN KIT BATTERY CHARGER770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATSTK505 - ADAPTER KIT FOR 14PIN AVR MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY261-20PU
Manufacturer:
ATMEL
Quantity:
256
- Current page: 4 of 242
- Download datasheet (5Mb)
2. Overview
2.1
4
Block Diagram
ATtiny261/461/861
ATtiny261/461/861 are low-power CMOS 8-bit microcontrollers based on the AVR enhanced
RISC architecture. By executing powerful instructions in a single clock cycle, the
ATtiny261/461/861 achieves throughputs approaching 1 MIPS per MHz allowing the system
designer to optimize power consumption versus processing speed.
Figure 2-1.
The AVR core combines a rich instruction set with 32 general purpose working registers. All 32
registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent
registers to be accessed in one single instruction executed in one clock cycle. The resulting
architecture is more code efficient while achieving throughputs up to ten times faster than con-
ventional CISC microcontrollers.
Block Diagram
Timer/Counter0
Generation
PORT B (8)
Watchdog
Watchdog
Oscillator
Oscillator
Circuits /
EEPROM
Timer
Clock
PB[0..7]
USI
Timer/Counter1
POR / BOD &
Supervision
Analog Comp.
PORT A (8)
Power
RESET
Flash
PA[0..7]
3
CPU
debugWIRE
A/D Conv.
PROGRAM
Bandgap
SRAM
Internal
LOGIC
11
RESET
XTAL[1..2]
AVCC
AGND
AREF
2588E–AVR–08/10
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