ATtiny2313A Atmel Corporation, ATtiny2313A Datasheet - Page 200

• Manufacturer Part Number: ATtiny2313A
• Manufacturer: Atmel Corporation

Specifications of ATtiny2313A

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 18
• Ext Interrupts: 18
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• 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

22.3
22.4
22.4.1
Table 22-1.
200
Calibration
Method
Factory
Calibration
User
Calibration
Speed
Clock Characteristics
ATtiny2313A/4313
Calibrated Internal RC Oscillator Accuracy
Calibration Accuracy of Internal RC Oscillator
Fixed frequency within:
Target Frequency
The maximum operating frequency of the device is dependent on supply voltage, V
tionship between supply voltage and maximum operating frequency is piecewise linear, as
shown in
Figure 22-1. 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:
3.1 – 4.7 MHz /
7.3 – 9.1MHz
4.0 / 8.0MHz
230.
20 MHz
10 MHz
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
4 MHz
Figure
22-1.
1.8V
Fixed voltage within:
1.8V – 5.5V
V
3V
CC
2.7V
CC
Figure 23-46 on page
Fixed temperature
Temperature
-40°C – 85°C
within:
25°C
4.5V
229, and
Accuracy at given Voltage
& Temperature
5.5V
Figure 23-47 on
±10%
±2%
8246B–AVR–09/11
CC
. The rela-
(1)