ATtiny85 Atmel Corporation, ATtiny85 Datasheet - Page 183

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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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22.3.1
22.4
2586N–AVR–04/11
Power-down Supply Current
Example
It is possible to calculate the typical current consumption based on the numbers from
for other V
Calculate the expected current consumption in idle mode with USI, TIMER0, and ADC enabled
at V
to add 10% for the USI, 25% for the ADC, and 10% for the TIMER0 module. Reading from
22-9
total current consumption in idle mode with USI, TIMER0, and ADC enabled, gives:
Figure 22-11. Power-down Supply Current vs. V
CC
, we find that the idle current consumption is ~0,18 mA at V
= 2.0V and f = 1 MHz. From
CC
1.4
1.2
0.8
0.6
0.4
0.2
1
0
and frequency settings that listed in
1.5
2
I
CC
=
POWER-DOWN SUPPLY CURRENT vs. V
0 18mA
2.5
,
WATCHDOG TIMER DISABLED
Table 22-2 on page
×
3
(
1
+
0 1 ,
V
CC
3.5
+
(V)
CC
Table
0 25
,
(Watchdog Timer Disabled)
+
4
22-1.
182, third column, we see that we need
0 1 ,
)
4.5
0 261mA
,
CC
ATtiny25/45/85
= 2.0V and f = 1 MHz. The
CC
5
5.5
-40 ˚C
85 ˚C
25 ˚C
Table 22-2
Figure
183

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