ATtiny5 Atmel Corporation, ATtiny5 Datasheet - Page 123

• Manufacturer Part Number: ATtiny5
• Manufacturer: Atmel Corporation

Specifications of ATtiny5

• Flash (kbytes): 0.5 Kbytes
• Pin Count: 6
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 1
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 4
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 8
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.03
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 1
• Output Compare Channels: 2
• Input Capture Channels: 1
• Pwm Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

17. Typical Characteristics
17.1
8127E–AVR–11/11
Supply Current of I/O Modules
The data contained in this section is largely based on simulations and characterization of similar
devices 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.
During characterisation devices are operated at frequencies higher than test limits but they are
not guaranteed to function properly at frequencies higher than the ordering code indicates.
All current consumption measurements are performed with all I/O pins configured as inputs and
with internal pull-ups enabled. Current consumption is a function of several factors such as oper-
ating voltage, operating frequency, loading of I/O pins, switching rate of I/O pins, code executed
and ambient temperature. The dominating factors are operating voltage and frequency.
A sine wave generator with rail-to-rail output is used as clock source but current consumption in
Power-Down mode is independent of clock selection. The difference between current consump-
tion in Power-Down mode with Watchdog Timer enabled and Power-Down mode with Watchdog
Timer disabled represents the differential current drawn by the Watchdog Timer.
The current drawn from pins with a capacitive load may be estimated (for one pin) as follows:
where V
I/O pin.
Tables and formulas below can be used to calculate additional current consumption for the dif-
ferent I/O modules in Active and Idle mode. Enabling and disabling of I/O modules is controlled
by the Power Reduction Register. See
Table 17-1.
Note:
Table 17-2
ages and frequencies than those mentioned in the
Table 17-2.
Note:
I
CP
PRR bit
PRTIM0
PRADC
PRR bit
PRTIM0
PRADC
≈
V
CC
1. The ADC is available in ATtiny5/10, only
1. The ADC is available in ATtiny5/10, only
CC
(1)
(1)
×
C
= operating voltage, C
below can be used for calculating typical current consumption for other supply volt-
L
×
Additional Current Consumption for the different I/O modules (absolute values)
Additional Current Consumption (percentage) in Active and Idle mode
f
SW
Current consumption additional to
active mode with external clock
(see
2.3 %
6.7 %
V
CC
Figure 17-1
= 2V, f = 1MHz
29.6 uA
6.6 uA
L
= load capacitance and f
and
“Power Reduction Register” on page 24
Figure
17-2)
V
Typical numbers
CC
Table 17-1
= 3V, f = 4MHz
40.0 uA
88.3 uA
Current consumption additional to
idle mode with external clock
(see
10.4 %
28.8 %
SW
above.
= average switching frequency of
Figure 17-7
ATtiny4/5/9/10
V
and
CC
= 5V, f = 8MHz
Figure
153.0 uA
333.3 uA
for details.
17-8)
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