23. Electrical Characteristics
23.1Absolute Maximum Ratings*
..................................Operating Temperature |
-40°C to +125°C |
*NOTICE: Stresses beyond those listed under “Absolute |
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Maximum Ratings” may cause permanent dam- |
Storage Temperature ..................................... |
-65°C to +150°C |
age to the device. This is a stress rating only and |
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functional operation of the device at these or |
Voltage on any Pin except |
RESET |
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other conditions beyond those indicated in the |
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with respect to Ground ................................ |
- 1.0V to VCC+0.5V |
operational sections of this specification is not |
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implied. Exposure to absolute maximum rating |
Voltage on |
RESET |
with respect to Ground |
......-1.0V to +13.0V |
conditions for extended periods may affect |
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Maximum Operating Voltage |
6.0V |
device reliability. |
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DC Current per I/O Pin ............................................... |
40.0 mA |
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DC Current VCC and GND Pins................................ |
200.0 mA |
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DC Characteristics TA = -40°C to 125°C, VCC = 2.7V to 5.5V (unless otherwise noted)(1) .
Symbol |
Parameter |
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Condition |
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Min. |
Typ. |
Max. |
Units |
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Except |
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and XTAL |
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VIL |
Input Low Voltage |
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RESET |
-0.5 |
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0.3VCC |
V |
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VIL1 |
Input Low Voltage |
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XTAL pin |
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-0.5 |
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0.1VCC |
V |
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VIL2 |
Input Low Voltage |
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pin |
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-0.5 |
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0.1VCC |
V |
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RESET |
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Except |
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and XTAL |
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RESET |
(3) |
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VIH |
Input High-voltage |
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0.6VCC |
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VCC +0.5 |
V |
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VIH1 |
Input High-voltage |
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XTAL pin |
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(3) |
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VCC +0.5 |
V |
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0.9VCC |
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(3) |
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VIH2 |
Input High-voltage |
RESET pin |
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VCC +0.5 |
V |
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0.9VCC |
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Output Low Voltage(4) |
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I |
= 8 mA, V |
CC |
= 5V |
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0.6 |
V |
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VOL |
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OL |
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(Port B) except PB5 |
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IOL = 5 mA, VCC = 3V |
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0.5 |
V |
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Output High-voltage(5) |
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I |
= -8 mA, V |
CC |
= 5V |
4.1 |
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V |
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VOH |
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OH |
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(Port B) except PB5 |
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IOH = -5 mA, VCC = 3V |
2.3 |
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V |
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VOL1 |
Output Low Voltage(4) |
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IOL = 1 mA |
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0.6 |
V |
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PB5 |
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VOH1 |
Output High-voltage(5) |
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IOH = -200µA, VCC = 5V |
3.2 |
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V |
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PB5 |
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Input Leakage |
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Vcc = 5.5V, pin low |
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IIL |
Current I/O Pin except |
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1 |
µA |
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(absolute value) |
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RESET |
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Input Leakage |
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Vcc = 5.5V, pin high |
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IIH |
Current I/O Pin except |
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1 |
µA |
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(absolute value) |
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RESET |
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RRST |
Reset Pull-up Resistor |
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30 |
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60 |
kΩ |
Rpu |
I/O Pin Pull-up Resistor |
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20 |
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50 |
kΩ |
156 ATtiny25/45/85 Auto 
7598C–AVR–09/06
ATtiny25/45/85 Auto
DC Characteristics T |
= -40°C to 125°C, V |
CC |
= 2.7V to 5.5V (unless otherwise noted)(1) . |
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A |
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Symbol |
Parameter |
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Condition |
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Min. |
Typ. |
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Max. |
Units |
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Active 4MHz, VCC = 3V |
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1.25 |
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2 |
mA |
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Active 8MHz, VCC = 5V |
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5 |
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10 |
mA |
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Power Supply Current |
Active 16MHz, VCC = 5V |
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10 |
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15 |
mA |
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Idle 4MHz, VCC = 3V |
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0.4 |
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0.5 |
mA |
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ICC |
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Idle 8MHz, VCC = 5V |
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1.2 |
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2 |
mA |
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Idle 16MHz, VCC = 5V |
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2.5 |
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5 |
mA |
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WDT enabled, VCC = 3V |
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5 |
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30 |
µA |
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Power-down mode |
WDT disabled, VCC = 3V |
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2 |
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24 |
µA |
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WDT enabled, VCC = 5V |
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9 |
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50 |
µA |
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WDT disabled, VCC = 5V |
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3 |
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36 |
µA |
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Notes: 1. All DC Characteristics contained in this data sheet result from actual silicon characterization.
2.“Max” means the highest value where the pin is guaranteed to be read as low.
3.“Min” means the lowest value where the pin is guaranteed to be read as high.
4.Although each I/O port can sink more than the test conditions (8 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 (8 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.
23.2External Clock Drive Waveforms
Figure 23-1. External Clock Drive Waveforms
VIH1
VIL1
157
7598C–AVR–09/06
23.3 External Clock Drive
Table 23-1. |
External Clock Drive(1). PRELIMINARY |
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VCC = 4.5 - |
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VCC = 2.7 - 5.5V |
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5.5V |
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Symbol |
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Parameter |
Min. |
Max. |
Min. |
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Max. |
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1/tCLCL |
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Clock Frequency |
0 |
8 |
0 |
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16 |
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MHz |
tCLCL |
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Clock Period |
100 |
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50 |
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ns |
tCHCX |
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High Time |
40 |
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20 |
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tCLCX |
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Low Time |
40 |
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20 |
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tCLCH |
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Rise Time |
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1.6 |
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0.5 |
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tCHCL |
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Fall Time |
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1.6 |
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0.5 |
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μs |
tCLCL |
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Change in period from one clock cycle to |
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2 |
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2 |
% |
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the next |
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Notes: 1. All DC Characteristics contained in this data sheet result from actual silicon characterization.
Figure 23-2. Maximum Frequency vs. VCC
16 MHz
8 MHz
Safe Operating
Area
2.7V |
4.5V |
5.5V |
158 ATtiny25/45/85 Auto 
7598C–AVR–09/06
ATtiny25/45/85 Auto
23.4ADC Characteristics – Preliminary Data
Table 23-2. ADC Characteristics, Single Ended Channels. -40°C - 125°C. (1). PRELIMINARY
Symbol |
Parameter |
Condition |
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Min(1) |
Typ(1) |
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Max(1) |
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Resolution |
Single Ended Conversion |
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10 |
Bits |
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Single Ended Conversion |
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VREF = 4V, VCC = 4V, |
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2 |
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LSB |
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ADC clock = 200 kHz |
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Single Ended Conversion |
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VREF = 4V, VCC = 4V, |
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3 |
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LSB |
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Absolute accuracy (Including |
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ADC clock = 1 MHz |
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Single Ended Conversion |
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INL, DNL, quantization error, |
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VREF = 4V, VCC = 4V, |
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gain and offset error) |
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1.5 |
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LSB |
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ADC clock = 200 kHz |
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Noise Reduction Mode |
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Single Ended Conversion |
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VREF = 4V, VCC = 4V, |
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2.5 |
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LSB |
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ADC clock = 1 MHz |
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Noise Reduction Mode |
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Single Ended Conversion |
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Integral Non-linearity (INL) |
VREF = 4V, VCC = 4V, |
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1 |
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LSB |
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ADC clock = 200 kHz |
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Single Ended Conversion |
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Differential Non-linearity (DNL) |
VREF = 4V, VCC = 4V, |
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0.5 |
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LSB |
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ADC clock = 200 kHz |
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Single Ended Conversion |
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Gain Error |
VREF = 4V, VCC = 4V, |
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2.5 |
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LSB |
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ADC clock = 200 kHz |
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Single Ended Conversion |
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Offset Error |
VREF = 4V, VCC = 4V, |
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1.5 |
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LSB |
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ADC clock = 200 kHz |
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Conversion Time |
Free Running Conversion |
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13 |
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260 |
µs |
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Clock Frequency |
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50 |
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1000 |
kHz |
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AVCC |
Analog Supply Voltage |
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V |
CC |
- 0.3(2) |
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V |
CC |
+ 0.3(3) |
V |
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VIN |
Input Voltage |
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GND |
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VREF-50mV |
V |
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Input Bandwidth |
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38.5 |
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kHz |
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VINT |
Internal Voltage Reference |
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1.0 |
1.1 |
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1.2 |
V |
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RAIN |
Analog Input Resistance |
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100 |
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MΩ |
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Note: 1. |
All DC Characteristics contained in this data sheet result from actual silicon characterization. |
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2.Minimum for AVCC is 2.7V.
3.Maximum for AVCC is 5.5V.
159
7598C–AVR–09/06