ATTINY26L-8MUR Atmel, ATTINY26L-8MUR Datasheet - Page 25
ATTINY26L-8MUR
Manufacturer Part Number
ATTINY26L-8MUR
Description
IC MCU AVR 2K 5V 8MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY26L-8MUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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
32-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Clock Sources
1477K–AVR–08/10
The device has the following clock source options, selectable by Flash Fuse bits as shown
below on Table 3. The clock from the selected source is input to the AVR clock generator, and
routed to the appropriate modules.The use of pins PB5 (XTAL2), and PB4 (XTAL1) as I/O pins is
limited depending on clock settings, as shown below in Table 4.
Table 3. Device Clocking Options Select
Table 4. PB5, and PB4 Functionality vs. Device Clocking Options
Note:
The various choices for each clocking option is given in the following sections. When the CPU
wakes up from Power-down, the selected clock source is used to time the start-up, ensuring sta-
ble oscillator operation before instruction execution starts. When the CPU starts from Reset,
there is as an additional delay allowing the power to reach a stable level before commencing
normal operation. The Watchdog Oscillator is used for timing this real-time part of the start-up
time. The number of WDT Oscillator cycles used for each time-out is shown in Table 5. The fre-
Device Clocking Option
External Crystal/Ceramic Resonator
External Low-frequency Crystal
External RC Oscillator
Calibrated Internal RC Oscillator
External Clock
PLL Clock
Device Clocking Option
External Clock
Internal RC Oscillator
Internal RC Oscillator
Internal RC Oscillator
Internal RC Oscillator
External RC Oscillator
External RC Oscillator
External RC Oscillator
External RC Oscillator
External Low-frequency Oscillator
External Crystal/Resonator Oscillator
External Crystal/Resonator Oscillator
External Crystal/Resonator Oscillator
External Crystal/Resonator Oscillator
External Crystal/Resonator Oscillator
External Crystal/Resonator Oscillator
PLL
1. For all fuses “1” means unprogrammed while “0” means programmed.
PLLCK
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
CKSEL [3:0]
PLLCK
0000
0001
0010
0100
0101
1000
1001
1010
0001
0011
0110
1011
1100
1101
1110
0111
1111
1
1
1
1
1
0
(1)
XTAL1
XTAL1
XTAL1
XTAL1
XTAL1
XTAL1
XTAL1
XTAL1
XTAL1
XTAL1
XTAL1
XTAL1
PB4
I/O
I/O
I/O
I/O
I/O
1000 - 0101
0100 - 0001
1111 - 1010
CKSEL3..0
1001
0000
0001
XTAL2
XTAL2
XTAL2
XTAL2
XTAL2
XTAL2
XTAL2
PB5
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
25
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