ATTINY13A-SS7R Atmel, ATTINY13A-SS7R Datasheet - Page 124

• Manufacturer Part Number: ATTINY13A-SS7R
• Description: IC MCU AVR 1K FLASH 8SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY13A-SS7R

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 1KB (512 x 16)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Connectivity: -

19. Typical Characteristics
19.1
19.1.1
124
Supply Current of I/O Modules
ATtiny13A
Example
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.
Using
culate the additional current consumption for peripheral modules in active and idle mode.
Peripheral modules are enabled and disabled via control bits in the Power Reduction Register.
See
Table 19-1.
Estimate current consumption in idle mode, with Timer/Counter0 and ADC enabled, the device
running at 2V and with 1MHz external clock.
From
page 133
Timer/Counter0 supply current I
therefore I
I
CP
PRR bit
PRTIM0
PRADC
≈
“Power Reduction Register” on page 31
V
Figure 19-7 on page 128
Table
CC
CC
×
CCTOT
= operating voltage, C
C
we find ADC supply current I
L
19-1, the typical characteristics of this section and the equation given one can cal-
×
Additional Current Consumption (Absolute) for Peripherals
f
SW
= 0.214 mA, approximately 0.21 mA.
V
CC
= 2V, f = 1MHz
180 µA
we find idle supply current I
4 µA
TC0
L
= load capacitance and f
= 0.004 mA. The total current consumption in idle mode is
ADC
for details.
= 0.18 mA, and using
V
Typical numbers
CC
= 3V, f = 4MHz
260 µA
25 µA
CC
SW
= 0.03 mA. Using
= average switching frequency of
Table 19-1
V
CC
= 5V, f = 8MHz
Figure 19-18 on
115 µA
460 µA
8126E–AVR–07/10
we find