ATTINY26-16PI Atmel, ATTINY26-16PI Datasheet - Page 17

• Manufacturer Part Number: ATTINY26-16PI
• Description: IC AVR MCU 2K 16MHZ IND 20-DIP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY26-16PI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• 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): 4.5 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)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

In-System
Programmable
Flash Program
Memory
SRAM Data
Memory
1477K–AVR–08/10
Figure 18. On-chip Data SRAM Access Cycles
The ATtiny26(L) contains 2K bytes On-chip In-System Programmable Flash memory for pro-
gram storage. Since all instructions are 16- or 32-bit words, the Flash is organized as 1K x 16.
The Flash memory has an endurance of at least 10,000 write/erase cycles. The ATtiny26(L) Pro-
gram Counter – PC – is 10 bits wide, thus addressing the 1024 program memory addresses, see
“Memory Programming” on page 107 for a detailed description on Flash data downloading. See
“Program and Data Addressing Modes” on page 11 for the different program memory address-
ing modes.
Figure 19. SRAM Organization
Figure 19 above shows how the ATtiny26(L) SRAM Memory is organized.
The lower 224 Data Memory locations address the Register File, the I/O Memory and the inter-
nal data SRAM. The first 96 locations address the Register File and I/O Memory, and the next
128 locations address the internal data SRAM.
System Clock Ø
I/O Registers
Register File
R29
R30
R31
$3D
$3E
$00
$01
$02
$3F
R0
R1
R2
Address
…
...
Data
Data
WR
RD
Prev. Address
T1
Address
T2
T3
Data Address Space
Internal SRAM
$00DE
$001D
$001E
$005D
$005E
$00DF
$0000
$0001
$0002
$001F
$0020
$0021
$0022
$005F
$0060
$0061
…
...
...
T4
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