ATTINY12 ATMEL Corporation, ATTINY12 Datasheet - Page 72

• Manufacturer Part Number: ATTINY12
• Description: 8-bit AVR Microcontroller with 1K Byte Flash
• Manufacturer: ATMEL Corporation

ATtiny12 Typical
Characteristics
72
ATtiny11/12
The following charts show typical behavior. These data are characterized, but not
tested. All current consumption measurements are performed with all I/O pins config-
ured as inputs and with internal pull-ups enabled. A sine wave generator with rail-to-rail
output is used as clock source.
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,
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.
The current drawn from capacitive loaded pins may be estimated (for one pin) as
C
ing frequency of I/O pin.
The parts are characterized at frequencies higher than test limits. Parts are not guaran-
teed to function properly at frequencies higher than the ordering code indicates.
The difference between current consumption in Power-down Mode with Watchdog
Timer enabled and Power-down Mode with Watchdog Timer disabled represents the dif-
ferential current drawn by the Watchdog timer.
Figure 57. Active Supply Current vs. V
L
*
V
CC
*f where C
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
1
0
1.5
2
L
= load capacitance, V
2.5
DEVICE CLOCKED BY 1.2MHz INTERNAL RC OSCILLATOR
ACTIVE SUPPLY CURRENT vs. V
3
3.5
CC
CC
, Device Clocked by Internal Oscillator
V
cc
(V)
= operating voltage and f = average switch-
4
4.5
cc
5
T = 25
T = 85
A
A
˚
˚
C
C
5.5
1006D–AVR–07/03
6