ATtiny4 Atmel Corporation, ATtiny4 Datasheet - Page 8
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ATtiny4
Manufacturer Part Number
ATtiny4
Description
Manufacturer
Atmel Corporation
Specifications of ATtiny4
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
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
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2. Typical Characteristics
2.1
8
Active Supply Current
ATtiny4/5/9/10
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.
Figure 2-1.
I
CP
≈
3,5
2,5
1,5
0,5
V
3
2
1
0
CC
1,5
CC
×
= operating voltage, C
C
L
×
Active Supply Current vs. V
f
SW
2
2,5
L
= load capacitance and f
ACTIVE SUPPLY CURRENT vs. V
3
INTERNAL OSCILLATOR, 8 MHz
CC
V
(Internal Oscillator, 8 MHz)
CC
3,5
(V)
4
SW
CC
= average switching frequency of
4,5
8127D–Appendix A–AVR–08/11
5
5,5
125 °C
-40 °C
25 °C
85 °C