ATtiny85 Atmel Corporation, ATtiny85 Datasheet - Page 4

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ATtiny85

Manufacturer Part Number
ATtiny85
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATtiny85

Flash (kbytes)
8 Kbytes
Pin Count
8
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
3
Hardware Qtouch Acquisition
No
Max I/o Pins
6
Ext Interrupts
6
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
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
5
Pwm Channels
6
32khz Rtc
No
Calibrated Rc Oscillator
Yes

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2.2
2.2.1
Table 2-2.
Notes:
2.3
2.3.1
4
Calibration
Method
Factory Calibration
User
Calibration
4. Although each I/O port can sink more than the test conditions (10 mA at V
5. Although each I/O port can source more than the test conditions (10 mA at V
6. The RESET pin must tolerate high voltages when entering and operating in programming modes and, as a consequence,
7. Values are with external clock using methods described in
8. Brown-Out Detection (BOD) disabled.
Clock Characteristics
1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
2. 6.4 MHz in ATtiny15 Compatibility Mode.
3. Voltage range for ATtiny25V.
4. Voltage range for ATtiny25.
System and Reset Characteristics
ATtiny25
Calibrated Internal RC Oscillator Accuracy
Power-On Reset
conditions (non-transient), the sum of all I
may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test condition.
conditions (non-transient), the sum of all I
may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.
has a weak drive strength as compared to regular I/O pins. See
(starting on
enabled (PRR = 0xFF) and there is no I/O drive.
Calibration Accuracy of Internal RC Oscillator
page
Fixed frequency within:
Target Frequency
It is possible to manually calibrate the internal oscillator to be more accurate than default factory
calibration. Please note that the oscillator frequency depends on temperature and voltage. Volt-
age and temperature characteristics can be found in
page
Table 2-3.
Note:
18).
Symbol
8.0 MHz
6 – 8 MHz
SR
V
V
POR
POA
27.
ON
1. Values are guidelines, only
2. Threshold where device is released from reset when voltage is rising
3. The Power-on Reset will not work unless the supply voltage has been below V
(2)
Parameter
Release threshold of power-on reset
Activation threshold of power-on reset
Power-On Slope Rate
Characteristics of Power-On Reset. T
OL
OH
Fixed voltage within:
, for all ports, should not exceed 60 mA. If I
, for all ports, should not exceed 60 mA. If I
1.8V - 5.5V
2.7V - 5.5V
V
3V
CC
(3)
(4)
“Minimizing Power Consumption” on page
Figure
(2)
(3)
Fixed temperature
-40°C to +125°C
3-19,
Temperature
CC
A
Figure 3-36 on page 27
within:
CC
25°C
= -40°C to +125°C
= 5V, 5 mA at V
Figure
= 5V, 5 mA at V
3-20,
Min
0.01
1.1
0.6
OL
OH
(1)
exceeds the test condition, V
Figure
exceeds the test condition, V
CC
Accuracy at given Voltage
Typ
CC
= 3V) under steady state
1.4
1.3
3-21, and
= 3V) under steady state
2586N-Appendix B–AVR–08/11
(1)
& Temperature
37. Power Reduction is
and
Max
±10%
±1%
1.7
1.7
Figure 3-22
Figure 3-37 on
POT
(1)
(falling)
(1)
Units
V/ms
V
V
OL
OH

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