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8-bit Microcontroller with 2K Bytes In-SystemProgrammable Flash
ATtiny25/V
Appendix A
Rev. 2586N–Appendix A–AVR–08/11
Appendix A – ATtiny25/V Specification at 105°CThis document contains information specific to devices operating at temperatures upto 105°C. Only deviations are covered in this appendix, all other information can befound in the complete datasheet. The complete datasheet can be found atwww.atmel.com.
1. Electrical Characteristics
1.1 Absolute Maximum Ratings*
1.2 DC Characteristics
Operating Temperature.................................. -55°C to +125°C *NOTICE: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam-age to the device. This is a stress rating only and functional operation of the device at these or other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Storage Temperature ..................................... -65°C to +150°C
Voltage on any Pin except RESETwith respect to Ground ................................-0.5V to VCC+0.5V
Voltage on RESET with respect to Ground......-0.5V to +13.0V
Maximum Operating Voltage ............................................ 6.0V
DC Current per I/O Pin ............................................... 40.0 mA
DC Current VCC and GND Pins................................ 200.0 mA
Table 1-1. DC Characteristics. TA = -40°C to +105°C
Symbol Parameter Condition Min. Typ.(1) Max. Units
VILInput Low-voltage, exceptXTAL1 and RESET pin
VCC = 1.8V - 2.4VVCC = 2.4V - 5.5V
-0.5-0.5
0.2VCC(3)
0.3VCC(3)
VV
VIHInput High-voltage, exceptXTAL1 and RESET pin
VCC = 1.8V - 2.4VVCC = 2.4V - 5.5V
0.7VCC(2)
0.6VCC(2)
VCC +0.5VCC +0.5
VV
VIL1Input Low-voltage, XTAL1 pin, External Clock Selected
VCC = 1.8V - 5.5V -0.5 0.1VCC(3) V
VIH1Input High-voltage, XTAL1 pin, External Clock Selected
VCC = 1.8V - 2.4VVCC = 2.4V - 5.5V
0.8VCC(2)
0.7VCC(2)
VCC +0.5VCC +0.5
VV
VIL2Input Low-voltage,RESET pin
VCC = 1.8V - 5.5V -0.5 0.2VCC(3) V
V
VIH2Input High-voltage,RESET pin
VCC = 1.8V - 5.5V 0.9VCC(2) VCC +0.5 V
VIL3Input Low-voltage,RESET pin as I/O
VCC = 1.8V - 2.4VVCC = 2.4V - 5.5V
-0.5-0.5
0.2VCC(3)
0.3VCC(3)
VV
VIH3Input High-voltage,RESET pin as I/O
VCC = 1.8V - 2.4VVCC = 2.4V - 5.5V
0.7VCC(2)
0.6VCC(2)
VCC +0.5VCC +0.5
VV
VOLOutput Low-voltage (4),Port B (except RESET) (6)
IOL = 10 mA, VCC = 5VIOL = 5 mA, VCC = 3V
0.60.5
VV
VOHOutput High-voltage (5),Port B (except RESET) (6)
IOH = -10 mA, VCC = 5VIOH = -5 mA, VCC = 3V
4.32.5
VV
IILInput LeakageCurrent I/O Pin
VCC = 5.5V, pin low(absolute value)
< 0.05 1 µA
IIHInput LeakageCurrent I/O Pin
VCC = 5.5V, pin high(absolute value)
< 0.05 1 µA
22586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Notes: 1. Typical values at 25°C.
2. “Min” means the lowest value where the pin is guaranteed to be read as high.
3. “Max” means the highest value where the pin is guaranteed to be read as low.
4. Although each I/O port can sink more than the test conditions (10 mA at VCC = 5V, 5 mA at VCC = 3V) under steady state conditions (non-transient), the following must be observed:1] The sum of all IOL, for all ports, should not exceed 60 mA.If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test condition.
5. Although each I/O port can source more than the test conditions (10 mA at VCC = 5V, 5 mA at VCC = 3V) under steady state conditions (non-transient), the following must be observed:1] The sum of all IOH, for all ports, should not exceed 60 mA.If IOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.
6. The RESET pin must tolerate high voltages when entering and operating in programming modes and, as a consequence, has a weak drive strength as compared to regular I/O pins.
7. Values are with external clock using methods described in “Minimizing Power Consumption” on page 37. Power Reduction is enabled (PRR = 0xFF) and there is no I/O drive.
8. Brown-Out Detection (BOD) disabled.
RRST Reset Pull-up Resistor VCC = 5.5V, input low 30 60 kΩ
Rpu I/O Pin Pull-up Resistor VCC = 5.5V, input low 20 50 kΩ
ICC
Power Supply Current (7)
Active 1MHz, VCC = 2V 0.3 0.55 mA
Active 4MHz, VCC = 3V 1.5 2.5 mA
Active 8MHz, VCC = 5V 5 8 mA
Idle 1MHz, VCC = 2V 0.1 0.2 mA
Idle 4MHz, VCC = 3V 0.35 0.6 mA
Idle 8MHz, VCC = 5V 1.2 2 mA
Power-down mode (8)WDT enabled, VCC = 3V 4 20 µA
WDT disabled, VCC = 3V 0.2 10 µA
Table 1-1. DC Characteristics. TA = -40°C to +105°C (Continued)
Symbol Parameter Condition Min. Typ.(1) Max. Units
32586N–Appendix A–AVR–08/11
1.3 Clock Characteristics
1.3.1 Calibrated Internal RC Oscillator AccuracyIt is possible to manually calibrate the internal oscillator to be more accurate than default factorycalibration. Please note that the oscillator frequency depends on temperature and voltage. Volt-age and temperature characteristics can be found in Figure 2-36 on page 28 and Figure 2-37 onpage 28.
Notes: 1. Accuracy of oscillator frequency at calibration point (fixed temperature and fixed voltage).
2. ATtiny25/V, only: 6.4 MHz in ATtiny15 Compatibility Mode.
3. Voltage range for ATtiny25V.
4. Voltage range for ATtiny25.
1.4 System and Reset Characteristics
Note: 1. Values are guidelines only.
Table 1-2. Calibration Accuracy of Internal RC Oscillator
CalibrationMethod Target Frequency VCC Temperature
Accuracy at given Voltage & Temperature (1)
FactoryCalibration
8.0 MHz (2) 3V 25°C ±10%
UserCalibration
Fixed frequency within:6 – 8 MHz
Fixed voltage within:1.8V - 5.5V (3)
2.7V - 5.5V (4)
Fixed temperature within:
-40°C to +105°C±1%
Table 1-3. Reset, Brown-out and Internal Voltage Characteristics
Symbol Parameter Condition Min (1) Typ (1) Max (1) Units
VRST RESET Pin Threshold Voltage VCC = 3V 0.2 VCC 0.9 VCC V
tRSTMinimum pulse width on RESET Pin
VCC = 3V 2.5 µs
VHYST Brown-out Detector Hysteresis 50 mV
tBODMin Pulse Width on Brown-out Reset
2 µs
VBGBandgap reference voltage
VCC = 5.5VTA = 25°C
1.0 1.1 1.2 V
tBGBandgap reference start-up time
VCC = 2.7VTA = 25°C
40 70 µs
IBGBandgap reference current consumption
VCC = 2.7VTA = 25°C
15 µA
42586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
1.4.1 Enhanced Power-On ResetThe table below describes the characteristics of the power-on reset.
Note: 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 VPOT (falling)
Table 1-4. Characteristics of Enhanced Power-On Reset. TA = -40°C to +105°C
Symbol Parameter Min (1) Typ (1) Max (1) Units
VPOR Release threshold of power-on reset (2) 1.1 1.4 1.7 V
VPOA Activation threshold of power-on reset (3) 0.6 1.3 1.7 V
SRON Power-On Slope Rate 0.01 V/ms
52586N–Appendix A–AVR–08/11
1.5 ADC Characteristics – Preliminary
Note: 1. Values are guidelines only.
Table 1-5. ADC Characteristics, Single Ended Channels. TA = -40°C to +105°C
Symbol Parameter Condition Min Typ Max Units
Resolution 10 Bits
Absolute accuracy(Including INL, DNL, andQuantization, Gain andOffset errors)
VREF = 4V, VCC = 4V,ADC clock = 200 kHz
2 LSB
VREF = 4V, VCC = 4V,ADC clock = 1 MHz
3 LSB
VREF = 4V, VCC = 4V,ADC clock = 200 kHz
Noise Reduction Mode1.5 LSB
VREF = 4V, VCC = 4V,ADC clock = 1 MHzNoise Reduction Mode
2.5 LSB
Integral Non-linearity (INL)(Accuracy after offset and gain calibration)
VREF = 4V, VCC = 4V,ADC clock = 200 kHz
1 LSB
Differential Non-linearity (DNL)VREF = 4V, VCC = 4V,ADC clock = 200 kHz
0.5 LSB
Gain ErrorVREF = 4V, VCC = 4V,ADC clock = 200 kHz
2.5 LSB
Offset ErrorVREF = 4V, VCC = 4V,ADC clock = 200 kHz
1.5 LSB
Conversion Time Free Running Conversion 14 280 µs
Clock Frequency 50 1000 kHz
VIN Input Voltage GND VREF V
Input Bandwidth 38.4 kHz
AREF External Reference Voltage 2.0 VCC V
VINT
Internal Voltage Reference 1.0 1.1 1.2 V
Internal 2.56V Reference (1) VCC > 3.0V 2.3 2.56 2.8 V
RREF 32 kΩ
RAIN Analog Input Resistance 100 MΩ
ADC Output 0 1023 LSB
62586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Note: 1. Values are guidelines only.
Table 1-6. ADC Characteristics, Differential Channels (Unipolar Mode). TA = -40°C to +105°C
Symbol Parameter Condition Min Typ Max Units
ResolutionGain = 1x 10 Bits
Gain = 20x 10 Bits
Absolute accuracy(Including INL, DNL, and Quantization, Gain and Offset Errors)
Gain = 1xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
10.0 LSB
Gain = 20xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
20.0 LSB
Integral Non-Linearity (INL)(Accuracy after Offset and Gain Calibration)
Gain = 1xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
4.0 LSB
Gain = 20xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
10.0 LSB
Gain ErrorGain = 1x 10.0 LSB
Gain = 20x 15.0 LSB
Offset Error
Gain = 1xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
3.0 LSB
Gain = 20xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
4.0 LSB
Conversion Time Free Running Conversion 70 280 µs
Clock Frequency 50 200 kHz
VIN Input Voltage GND VCC V
VDIFF Input Differential Voltage VREF/Gain V
Input Bandwidth 4 kHz
AREF External Reference Voltage 2.0 VCC - 1.0 V
VINT
Internal Voltage Reference 1.0 1.1 1.2 V
Internal 2.56V Reference (1) VCC > 3.0V 2.3 2.56 2.8 V
RREF Reference Input Resistance 32 kΩ
RAIN Analog Input Resistance 100 MΩ
ADC Conversion Output 0 1023 LSB
72586N–Appendix A–AVR–08/11
Note: 1. Values are guidelines only.
Table 1-7. ADC Characteristics, Differential Channels (Bipolar Mode). TA = -40°C to +105°C
Symbol Parameter Condition Min Typ Max Units
ResolutionGain = 1x 10 Bits
Gain = 20x 10 Bits
Absolute accuracy(Including INL, DNL, and Quantization, Gain and Offset Errors)
Gain = 1xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
8.0 LSB
Gain = 20xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
8.0 LSB
Integral Non-Linearity (INL)(Accuracy after Offset and Gain Calibration)
Gain = 1xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
4.0 LSB
Gain = 20xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
5.0 LSB
Gain ErrorGain = 1x 4.0 LSB
Gain = 20x 5.0 LSB
Offset Error
Gain = 1xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
3.0 LSB
Gain = 20xVREF = 4V, VCC = 5VADC clock = 50 - 200 kHz
4.0 LSB
Conversion Time Free Running Conversion 70 280 µs
Clock Frequency 50 200 kHz
VIN Input Voltage GND VCC V
VDIFF Input Differential Voltage VREF/Gain V
Input Bandwidth 4 kHz
AREF External Reference Voltage 2.0 VCC - 1.0 V
VINT
Internal Voltage Reference 1.0 1.1 1.2 V
Internal 2.56V Reference (1) VCC > 3.0V 2.3 2.56 2.8 V
RREF Reference Input Resistance 32 kΩ
RAIN Analog Input Resistance 100 MΩ
ADC Conversion Output -512 511 LSB
82586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
1.6 Serial Programming Characteristics
Figure 1-1. Serial Programming Waveforms
Figure 1-2. Serial Programming Timing
Note: 1. 2 tCLCL for fck < 12 MHz, 3 tCLCL for fck >= 12 MHz
Table 1-8. Serial Programming Characteristics, TA = -40°C to +105°C, VCC = 1.8 - 5.5V (Unless Otherwise Noted)
Symbol Parameter Min Typ Max Units
1/tCLCL Oscillator Frequency (VCC = 1.8 - 5.5V) 0 4 MHz
tCLCL Oscillator Period (VCC = 1.8 - 5.5V) 250 ns
1/tCLCL Oscillator Frequency (VCC = 2.7 - 5.5V) 0 10 MHz
tCLCL Oscillator Period (VCC = 2.7 - 5.5V) 100 ns
1/tCLCL Oscillator Frequency (VCC = 4.5V - 5.5V) 0 20 MHz
tCLCL Oscillator Period (VCC = 4.5V - 5.5V) 50 ns
tSHSL SCK Pulse Width High 2 tCLCL* ns
tSLSH SCK Pulse Width Low 2 tCLCL* ns
tOVSH MOSI Setup to SCK High tCLCL ns
tSHOX MOSI Hold after SCK High 2 tCLCL ns
tSLIV SCK Low to MISO Valid 100 ns
MSB
MSB
LSB
LSB
SERIAL CLOCK INPUT(SCK)
SERIAL DATA INPUT (MOSI)
(MISO)
SAMPLE
SERIAL DATA OUTPUT
MOSI
MISO
SCK
tOVSH
tSHSL
tSLSHtSHOX
tSLIV
92586N–Appendix A–AVR–08/11
2. Typical CharacteristicsThe data contained in this section is largely based on simulations and characterization of similardevices in the same process and design methods. Thus, the data should be treated as indica-tions of how the part will behave.
The following charts show typical behavior. These figures are not tested during manufacturing.All current consumption measurements are performed with all I/O pins configured as inputs andwith internal pull-ups enabled. A sine wave generator with rail-to-rail output is used as clocksource.
The power consumption in Power-down mode is independent of clock selection.
The current consumption is a function of several factors such as: operating voltage, operatingfrequency, loading of I/O pins, switching rate of I/O pins, code executed and ambient tempera-ture. The dominating factors are operating voltage and frequency.
The current drawn from capacitive loaded pins may be estimated (for one pin) as CL*VCC*f whereCL = load capacitance, VCC = operating voltage and f = average switching frequency of I/O pin.
The parts are characterized at frequencies higher than test limits. Parts are not guaranteed tofunction properly at frequencies higher than the ordering code indicates.
The difference between current consumption in Power-down mode with Watchdog Timerenabled and Power-down mode with Watchdog Timer disabled represents the differential cur-rent drawn by the Watchdog Timer.
2.1 Active Supply Current
Figure 2-1. Active Supply Current vs. VCC (Internal RC oscillator, 8 MHz)
ACTIVE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 8 MHz
0
1
2
3
4
5
6
7
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
25 °C85 °C
105 °C
-40 °C
102586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-2. Active Supply Current vs. VCC (Internal RC Oscillator, 1 MHz)
Figure 2-3. Active Supply Current vs. VCC (Internal RC Oscillator, 128 kHz)
25 °C85 °C
105 °C
-40 °C
ACTIVE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 1 MHz
0
0,2
0,4
0,6
0,8
1
1,2
1,4
1,6
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
ACTIVE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 128 KHz
0
0,05
0,1
0,15
0,2
0,25
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
25 °C
85 °C105 °C
-40 °C
112586N–Appendix A–AVR–08/11
2.2 Idle Supply Current
Figure 2-4. Idle Supply Current vs. VCC (Internal RC Oscillator, 8 MHz)
Figure 2-5. Idle Supply Current vs. VCC (Internal RC Oscilllator, 1 MHz)
IDLE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 8 MHz
0
0,2
0,4
0,6
0,8
1
1,2
1,4
1,6
1,8
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
25 °C85 °C
105 °C
-40 °C
25 °C85 °C
105 °C
-40 °C
IDLE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 1 MHz
0
0,05
0,1
0,15
0,2
0,25
0,3
0,35
0,4
0,45
0,5
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
122586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-6. Idle Supply Current vs. VCC (Internal RC Oscillator, 128 kHz)
2.3 Power-down Supply Current
Figure 2-7. Power-down Supply Current vs. VCC (Watchdog Timer Disabled)
25 °C
85 °C
105 °C-40 °C
IDLE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 128 kHz
0
0,01
0,02
0,03
0,04
0,05
0,06
0,07
0,08
0,09
0,1
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
POWER-DOWN SUPPLY CURRENT vs. VCCWATCHDOG TIMER DISABLED
105 °C
85 °C
25 °C-40 °C
0
0,5
1
1,5
2
2,5
3
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (u
A)
132586N–Appendix A–AVR–08/11
Figure 2-8. Power-down Supply Current vs. VCC (Watchdog Timer Enabled)
2.4 Pin Pull-up
Figure 2-9. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 1.8V)
105 °C85 °C
25 °C-40 °C
POWER-DOWN SUPPLY CURRENT vs. VCCWATCHDOG TIMER ENABLED
0
2
4
6
8
10
12
14
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (u
A)
I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE
0
10
20
30
40
50
60
0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 2
VOP (V)
VCC = 1.8V
I OP (u
A)
25 °C
85 °C105 °C
-40 °C
142586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-10. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 2.7V)
Figure 2-11. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 5V)
VCC = 2.7V
25 °C85 °C
105 °C-40 °C
I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE
0
10
20
30
40
50
60
70
80
35,225,115,00
VOP (V)
I OP (u
A)
VCC = 5V
25 °C85 °C
105 °C-40 °C
I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE
0
20
40
60
80
100
120
140
160
6543210
VOP (V)
I OP (u
A)
152586N–Appendix A–AVR–08/11
Figure 2-12. Reset Pull-up Resistor Current vs. Reset Pin Voltage (VCC = 1.8V)
Figure 2-13. Reset Pull-up Resistor Current vs. Reset Pin Voltage (VCC = 2.7V)
25 °C
85 °C105 °C
-40 °C
RESET PULL-UP RESISTOR CURRENT vs. RESET PIN VOLTAGEVCC = 1.8V
0
5
10
15
20
25
30
35
40
0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 2
VRESET (V)
I RE
SE
T (u
A)
25 °C
85 °C105 °C
-40 °C
RESET PULL-UP RESISTOR CURRENT vs. RESET PIN VOLTAGEVCC =2.7V
0
10
20
30
40
50
60
0 0,5 1 1,5 2 2,5 3
VRESET (V)
I RE
SE
T (u
A)
162586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-14. Reset Pull-up Resistor Current vs. Reset Pin Voltage (VCC = 5V)
2.5 Pin Driver Strength
Figure 2-15. I/O Pin Output Voltage vs. Sink Current (VCC = 3V)
25 °C
85 °C105 °C
-40 °C
RESET PULL-UP RESISTOR CURRENT vs. RESET PIN VOLTAGEVCC = 5V
0
20
40
60
80
100
120
0 1 2 3 4 5 6
VRESET (V)
I RE
SE
T (u
A)
I/O PIN OUTPUT VOLTAGE vs. SINK CURRENTVCC = 3V
105 °C
85 °C
25 °C
-40 °C
0
0,2
0,4
0,6
0,8
1
1,2
5202510150
IOL (mA)
V OL (
V)
172586N–Appendix A–AVR–08/11
Figure 2-16. I/O Pin Output Voltage vs. Sink Current (VCC = 5V)
Figure 2-17. I/O Pin Output Voltage vs. Source Current (VCC = 3V)
I/O PIN OUTPUT VOLTAGE vs. SINK CURRENTVCC = 5V
105 °C
85 °C
25 °C
-40 °C
0
0,1
0,2
0,3
0,4
0,5
0,6
5202510150
IOL (mA)
V OL (
V)
I/O PIN OUTPUT VOLTAGE vs. SOURCE CURRENTVCC = 3V
105 °C85 °C25 °C
-40 °C
0
0,5
1
1,5
2
2,5
3
3,5
5202510150
IOH (mA)
V OH (V
)
182586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-18. I/O Pin Output Voltage vs. Source Current (VCC = 5V)
Figure 2-19. Reset Pin Output Voltage vs. Sink Current (VCC = 3V)
I/O PIN OUTPUT VOLTAGE vs. SOURCE CURRENTVCC = 5V
105 °C85 °C
25 °C
-40 °C
4,3
4,4
4,5
4,6
4,7
4,8
4,9
5
5202510150
IOH (mA)
V OH (V
)
RESET AS I/O PIN OUTPUT VOLTAGE vs. SINK CURRENTVCC = 3V
105 °C
85 °C
25 °C
-40 °C
0
0,5
1
1,5
35,225,115,00
IOL (mA)
V OL (
V)
192586N–Appendix A–AVR–08/11
Figure 2-20. Reset Pin Output Voltage vs. Sink Current (VCC = 5V)
Figure 2-21. Reset Pin Output Voltage vs. Source Current (VCC = 3V)
RESET AS I/O PIN OUTPUT VOLTAGE vs. SINK CURRENTVCC = 5V
105 °C85 °C
25 °C
-40 °C
0
0,2
0,4
0,6
0,8
1
35,225,115,00
IOL (mA)
V OL (
V)
25 °C85 °C
105 °C
-40 °C
RESET AS I/O PIN OUTPUT VOLTAGE vs. SOURCE CURRENTVCC = 3V
0
0,5
1
1,5
2
2,5
3
3,5
25,115,00
IOH (mA)
V OH (V
)
202586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-22. Reset Pin Output Voltage vs. Source Current (VCC = 5V)
2.6 Pin Threshold and Hysteresis
Figure 2-23. I/O Pin Input Threshold Voltage vs. VCC (VIH, IO Pin Read as ‘1’)
25 °C85 °C
105 °C
-40 °C
RESET AS I/O PIN OUTPUT VOLTAGE vs. SOURCE CURRENTVCC = 5V
2
2,5
3
3,5
4
4,5
5
25,115,00
IOH (mA)
V OH (V
)
I/O PIN INPUT THRESHOLD VOLTAGE vs. VCCVIH, IO PIN READ AS '1'
0
0,5
1
1,5
2
2,5
3
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
Thre
shol
d (V
)
25 °C85 °C
105 °C
-40 °C
212586N–Appendix A–AVR–08/11
Figure 2-24. I/O Pin Input Threshold Voltage vs. VCC (VIL, IO Pin Read as ‘0’)
Figure 2-25. I/O Pin Input Hysteresis vs. VCC
25 °C85 °C
105 °C
-40 °C
I/O PIN INPUT THRESHOLD VOLTAGE vs. VCCVIL, IO PIN READ AS '0'
0
0,5
1
1,5
2
2,5
3
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
Thre
shol
d (V
)
I/O PIN INPUT HYSTERESIS vs. VCC
105 °C85 °C
25 °C
-40 °C
0
0,1
0,2
0,3
0,4
0,5
0,6
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
Inpu
t Hys
tere
sis
(V)
222586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-26. Reset Input Threshold Voltage vs. VCC (VIH, IO Pin Read as ‘1’)
Figure 2-27. Reset Input Threshold Voltage vs. VCC (VIL, IO Pin Read as ‘0’)
RESET INPUT THRESHOLD VOLTAGE vs. VCCVIH, IO PIN READ AS '1'
105 °C85 °C25 °C
-40 °C
0
0,5
1
1,5
2
2,5
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
Thre
shol
d (V
)
RESET INPUT THRESHOLD VOLTAGE vs. VCCVIL, IO PIN READ AS '0'
0
0,5
1
1,5
2
2,5
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
Thre
shol
d (V
)
25 °C85 °C
105 °C
-40 °C
232586N–Appendix A–AVR–08/11
Figure 2-28. Reset Pin Input Hysteresis vs. VCC
2.7 BOD Threshold and Analog Comparator Offset
Figure 2-29. BOD Threshold vs. Temperature (BOD Level is 4.3V)
RESET PIN INPUT HYSTERESIS vs. VCC
0
0,05
0,1
0,15
0,2
0,25
0,3
0,35
0,4
0,45
0,5
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
Inpu
t Hys
tere
sis
(V)
25 °C
85 °C105 °C
-40 °C
BOD THRESHOLDS vs. TEMPERATUREBODLEVEL = 4.3V
Rising VCC
Falling VCC
4,26
4,28
4,3
4,32
4,34
4,36
4,38
4,4
-40 -20 0 20 40 60 80 100 120Temperature (C)
Thre
shol
d (V
)
242586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-30. BOD Threshold vs. Temperature (BOD Level is 2.7V)
Figure 2-31. BOD Threshold vs. Temperature (BOD Level is 1.8V)
BOD THRESHOLDS vs. TEMPERATUREBODLEVEL = 2.7V
Rising VCC
Falling VCC
2,68
2,7
2,72
2,74
2,76
2,78
2,8
-40 -20 0 20 40 60 80 100 120
Temperature (C)
Thre
shol
d (V
)
BOD THRESHOLDS vs. TEMPERATUREBODLEVEL = 1.8V
Rising VCC
Falling VCC
1,795
1,8
1,805
1,81
1,815
1,82
1,825
1,83
1,835
1,84
1,845
1,85
-40 -20 0 20 40 60 80 100 120
Temperature (C)
Thre
shol
d (V
)
252586N–Appendix A–AVR–08/11
Figure 2-32. Bandgap Voltage vs. Supply Voltage
Figure 2-33. Bandgap Voltage vs. Temperature
BANDGAP VOLTAGE vs. VCC
1
1,02
1,04
1,06
1,08
1,1
1,12
1,14
1,16
1,18
1,2
1,5 2 2,5 3 3,5 4 4,5 5 5,5
Vcc (V)
Band
gap
Volta
ge (V
)
85 °C105 °C
25 °C
-40 °C
BANDGAP VOLTAGE vs. Temperature
5 V
3 V1.8 V
1
1,02
1,04
1,06
1,08
1,1
1,12
1,14
1,16
1,18
1,2
-40 -20 0 20 40 60 80 100 120
Temperature
Band
gap
Volta
ge (V
)
262586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
2.8 Internal Oscillator Speed
Figure 2-34. Watchdog Oscillator Frequency vs. VCC
Figure 2-35. Watchdog Oscillator Frequency vs. Temperature
WATCHDOG OSCILLATOR FREQUENCY vs. VCC
105 °C
85 °C
25 °C
-40 °C
0,11
0,112
0,114
0,116
0,118
0,12
0,122
0,124
0,126
0,128
2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
F RC (M
Hz)
WATCHDOG OSCILLATOR FREQUENCY vs. TEMPERATURE
5.5 V4.0 V3.3 V2.7 V
1.8 V
0,104
0,106
0,108
0,11
0,112
0,114
0,116
0,118
0,12
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120Temperature
FRC
(MH
z)
272586N–Appendix A–AVR–08/11
Figure 2-36. Calibrated 8 MHz RC Oscillator Frequency vs. VCC
Figure 2-37. Calibrated 8 MHz RC Oscillator Frequency vs. Temperature
105 °C85 °C
25 °C
-40 °C
CALIBRATED 8 MHz RC OSCILLATOR FREQUENCY vs. VCC
7400000
7500000
7600000
7700000
7800000
7900000
8000000
8100000
8200000
8300000
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
F RC (H
z)
CALIBRATED 8 MHz RC OSCILLATOR FREQUENCY vs. TEMPERATURE
5.0 V3.0 V
1.8 V
7400000
7500000
7600000
7700000
7800000
7900000
8000000
8100000
8200000
8300000
-60 -40 -20 0 20 40 60 80 100 120
Temperature
F RC (H
z)
282586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-38. Calibrated 8 MHz RC Oscillator Frequency vs. OSCCAL Value
2.9 Current Consumption of Peripheral Units
Figure 2-39. Brownout Detector Current vs. VCC
25 °C85 °C
105 °C
-40 °C
CALIBRATED 8.0MHz RC OSCILLATOR FREQUENCY vs. OSCCAL VALUE
0
2
4
6
8
10
12
14
16
18
0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
OSCCAL (X1)
F RC (M
Hz)
BROWNOUT DETECTOR CURRENT vs. VCCBOD level = 1.8V
105 °C85 °C
25 °C-40 °C
0
5
10
15
20
25
30
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (u
A)
292586N–Appendix A–AVR–08/11
Figure 2-40. ADC Current vs. VCC (AREF = AVCC)
Figure 2-41. Analog Comparator Current vs. VCC
ADC CURRENT vs. VCCAREF = AVCC
105 °C85 °C25 °C
-40 °C
0
0,05
0,1
0,15
0,2
0,25
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
105 °C85 °C
25 °C-40 °C
ANALOG COMPARATOR CURRENT vs. VCC
0
0,01
0,02
0,03
0,04
0,05
0,06
0,07
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
302586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
Figure 2-42. Programming Current vs. VCC
2.10 Current Consumption in Reset and Reset Pulsewidth
Figure 2-43. Minimum Reset Pulse Width vs. VCC
PROGRAMMING CURRENT vs. VccExt Clk
105 °C85 °C
25 °C
-40 °C
0
1
2
3
4
5
6
7
8
9
10
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
I CC (m
A)
MINIMUM RESET PULSE WIDTH vs. VCC
0
500
1000
1500
2000
2500
1,5 2 2,5 3 3,5 4 4,5 5 5,5
VCC (V)
Pul
sew
idth
(ns)
25 °C85 °C
105 °C
-40 °C
312586N–Appendix A–AVR–08/11
3. Ordering Information
Notes: 1. Code indicators:
– N: matte tin– R: tape & reel
2. All packages are Pb-free, halide-free and fully green and they comply with the European directive for Restriction of Hazard-ous Substances (RoHS).
Speed (MHz) Power Supply Ordering Code(1) Package(2) Operational Range
10 1.8 - 5.5V
ATtiny25V-10SNATtiny25V-10SNRATtiny25V-10SSNATtiny25V-10SSNR
8S28S2S8S1S8S1
Industrial(-40°C to +105°C)
20 2.7 - 5.5V
ATtiny25-20SNATtiny25-20SNRATtiny25-20SSNATtiny25-20SSNR
8S28S2S8S1S8S1
Industrial(-40°C to +105°C)
Package Type
8S2 8-lead, 0.200" Wide, Plastic Gull-Wing Small Outline (EIAJ SOIC)
S8S1 8-lead, 0.150" Wide, Plastic Gull-Wing Small Outline (JEDEC SOIC)
322586N–Appendix A–AVR–08/11
ATtiny25
ATtiny25
4. Revision History
Revision No. History
2586A–Appendix A–AVR–06/10 Initial revision
2586B–Appendix A–AVR–07/10 Added Ordering Codes -SN and -SNR (package 8S2)
2586N–Appendix A–AVR–08/11 Removed “Preliminary” status, updated contact information
332586N–Appendix A–AVR–08/11
2586N–Appendix A–AVR–08/11
Headquarters International
Atmel Corporation2325 Orchard ParkwaySan Jose, CA 95131USATel: (+1)(408) 441-0311Fax: (+1)(408) 487-2600
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Product Contact
Web Sitewww.atmel.com
Technical [email protected]
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