ATTINY861V-10SUR Atmel, ATTINY861V-10SUR Datasheet - Page 15
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ATTINY861V-10SUR
Manufacturer Part Number
ATTINY861V-10SUR
Description
IC MCU AVR 8K FLASH 10MHZ 20SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY861V-10SUR
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Manufacturer:
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5. Memories
5.1
5.2
2588E–AVR–08/10
In-System Re-programmable Flash Program Memory
SRAM Data Memory
This section describes the different memories in the ATtiny261/461/861. The AVR architecture
has two main memory spaces, the Data memory and the Program memory space. In addition,
the ATtiny261/461/861 features an EEPROM Memory for data storage. All three memory
spaces are linear and regular.
The ATtiny261/461/861 contains 2/4/8K byte On-chip In-System Reprogrammable Flash mem-
ory for program storage. Since all AVR instructions are 16 or 32 bits wide, the Flash is organized
as 1024/2048/4096 x 16.
The Flash memory has an endurance of at least 10,000 write/erase cycles. The
ATtiny261/461/861 Program Counter (PC) is 10/11/12 bits wide, thus capable of addressing the
1024/2048/4096 Program memory locations.
detailed description on Flash data serial downloading using the SPI pins.
Constant tables can be allocated within the entire address space of program memory (see the
LPM – Load Program memory instruction description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
Figure 5-1.
Figure 5-2 on page 16
The lower data memory locations address both the Register File, the I/O memory and the inter-
nal data SRAM. The first 32 locations address the Register File, the next 64 locations the
standard I/O memory, and the last 128/256/512 locations address the internal data SRAM.
The five different addressing modes for the Data memory cover: Direct, Indirect with Displace-
ment, Indirect, Indirect with Pre-decrement, and Indirect with Post-increment. In the Register
File, registers R26 to R31 feature the indirect addressing pointer registers.
The direct addressing reaches the entire data space.
The Indirect with Displacement mode reaches 63 address locations from the base address given
by the Y- or Z-register.
11.
Program Memory Map
shows how the ATtiny261/461/861 SRAM Memory is organized.
Program Memory
“Memory Programming” on page 170
0x03FF/0x07FF/0x0FFF
0x0000
“Instruction Execution Tim-
contains a
15
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