ATTINY26L-8PI Atmel, ATTINY26L-8PI Datasheet - Page 30
ATTINY26L-8PI
Manufacturer Part Number
ATTINY26L-8PI
Description
IC AVR MCU 2K LV 8MHZ IND 20-DIP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY26L-8PI
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
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY26L-8PI
Manufacturer:
ATMEL
Quantity:
167
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External Clock
30
ATtiny26(L)
EEPROM and Flash access. If EEPROM or Flash is written, do not calibrate to more than 10%
above the nominal frequency. Otherwise, the EEPROM or Flash write may fail. Note that the
oscillator is intended for calibration to 1.0, 2.0, 4.0, or 8.0 MHz. Tuning to other values is not
guaranteed, as indicated in Table 13.
Table 13. Internal RC Oscillator Frequency Range.
To drive the device from an external clock source, XTAL1 should be driven as shown in Figure
24. To run the device on an external clock, the CKSEL Fuses must be programmed to “0000”
and PLLCK to “1”. By programming the CKOPT Fuse, the user can enable an internal 36 pF
capacitor between XTAL1 and GND.
Figure 24. External Clock Drive Configuration
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table 14.
Table 14. Start-up Times for the External Clock Selection
When applying an external clock, it is required to avoid sudden changes in the applied clock fre-
quency to ensure stable operation of the MCU. A variation in frequency of more than 2% from
one clock cycle to the next can lead to unpredictable behaviour. It is required to ensure that the
MCU is kept in reset during such changes in the clock frequency.
OSCCAL Value
SUT1..0
00
01
10
11
$00
$7F
$FF
Start-up Time from
Power-down
Min Frequency in Percentage of
6 CK
6 CK
6 CK
Nominal Frequency
EXTERNAL
SIGNAL
CLOCK
100%
50%
75%
Additional Delay from
Reset (V
Reserved
4.1 ms
65 ms
CC
–
= 5.0V)
PB5 (XTAL2)
XTAL1
GND
Max Frequency in Percentage of
Nominal Frequency
Recommended Usage
BOD enabled
Fast rising power
Slowly rising power
100%
150%
200%
1477K–AVR–08/10
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