ATTINY11-6SU Atmel, ATTINY11-6SU Datasheet - Page 12
ATTINY11-6SU
Manufacturer Part Number
ATTINY11-6SU
Description
IC MCU AVR 1K FLASH 6MHZ 8-SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY11-6SU
Core Processor
AVR
Core Size
8-Bit
Speed
6MHz
Peripherals
WDT
Number Of I /o
6
Program Memory Size
1KB (512 x 16)
Program Memory Type
FLASH
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Ram Size
-
Data Converters
-
Connectivity
-
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Register Description
Oscillator Calibration Register
– OSCCAL
12
ATtiny11/12
• Bits 7..0 - CAL7..0: Oscillator Calibration Value
Writing the calibration byte to this address will trim the internal oscillator to remove pro-
cess variations from the oscillator frequency. When OSCCAL is zero, the lowest
available frequency is chosen. Writing non-zero values to this register will increase the
frequency of the internal oscillator. Writing $FF to the register gives the highest available
frequency. The calibrated oscillator is used to time EEPROM access. If EEPROM is
written, do not calibrate to more than 10% above the nominal frequency. Otherwise, the
EEPROM write may fail. Table 4 shows the range for OSCCAL. Note that the oscillator
is intended for calibration to 1.2 MHz, thus tuning to other values is not guaranteed.
Table 4. Internal RC Oscillator Frequency Range
Bit
$31
Read/Write
Initial Value
OSCCAL Value
$7F
$FF
$00
CAL7
R/W
7
0
CAL6
R/W
6
0
CAL5
R/W
5
0
Min Frequency
CAL4
R/W
0.6 MHz
0.8 MHz
1.2 MHz
4
0
CAL3
R/W
3
0
CAL2
R/W
2
0
CAL1
R/W
1
0
Max Frequency
1.2 MHz
1.7 MHz
2.5 MHz
CAL0
R/W
0
0
1006F–AVR–06/07
OSCCAL
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