ATtiny24 Atmel Corporation, ATtiny24 Datasheet - Page 176

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ATtiny24

Manufacturer Part Number
ATtiny24
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATtiny24

Flash (kbytes)
2 Kbytes
Pin Count
14
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
4
Hardware Qtouch Acquisition
No
Max I/o Pins
12
Ext Interrupts
12
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.12
Eeprom (bytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
No
Calibrated Rc Oscillator
Yes

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20.4
20.4.1
Table 20-2.
176
Calibration
Method
Factory
Calibration
User
Calibration
Clock Characteristics
ATtiny24/44/84
Accuracy of Calibrated Internal RC Oscillator
Calibration Accuracy of Internal RC Oscillator
Fixed frequency within:
Target Frequency
Figure 20-2. Maximum Frequency vs. V
It is possible to manually calibrate the internal oscillator to be more accurate than default factory
calibration. Note that the oscillator frequency depends on temperature and voltage. Voltage and
temperature characteristics can be found in
page
Notes:
7.3 – 8.1 MHz
8.0 MHz
206.
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
2. Voltage range for ATtiny24V/44V/84V.
3. Voltage range for ATtiny24/44/84.
20 MHz
10 MHz
Fixed voltage within:
1.8 – 5.5V
2.7 – 5.5V
2.7V
V
3V
CC
(2)
(3)
CC
Safe Operating Area
(ATtiny24/44/84)
Figure 21-40 on page 206
Fixed temperature
-40°C to +85°C
Temperature
within:
25°C
4.5V
Accuracy at given voltage
5.5V
and
& temperature
Figure 21-41 on
±10%
±1%
8006K–AVR–10/10
(1)

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