ATTINY25V-10MUR Atmel, ATTINY25V-10MUR Datasheet - Page 15
ATTINY25V-10MUR
Manufacturer Part Number
ATTINY25V-10MUR
Description
MCU AVR 2KB FLASH 10MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY25-20MU.pdf
(236 pages)
Specifications of ATTINY25V-10MUR
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
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)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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5. AVR Memories
5.1
5.2
2586M–AVR–07/10
In-System Re-programmable Flash Program Memory
SRAM Data Memory
This section describes the different memories in the ATtiny25/45/85. The AVR architecture has
two main memory spaces, the Data memory and the Program memory space. In addition, the
ATtiny25/45/85 features an EEPROM Memory for data storage. All three memory spaces are lin-
ear and regular.
The ATtiny25/45/85 contains 2/4/8K bytes On-chip In-System Reprogrammable Flash memory
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 ATtiny25/45/85
Program Counter (PC) is 10/11/12 bits wide, thus addressing the 1024/2048/4096 Program
memory locations.
data serial downloading using the SPI pins.
Constant tables can be allocated within the entire Program memory address space (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
The lower 224/352/607 Data memory locations address both the Register File, the I/O memory
and the internal data SRAM. The first 32 locations address the Register File, the next 64 loca-
tions 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.
shows how the ATtiny25/45/85 SRAM Memory is organized.
12.
Program Memory Map
“Memory Programming” on page 151
Program Memory
0x03FF/0x07FF/0x0FFF
0x0000
contains a detailed description on Flash
“Instruction Execution Tim-
15
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