ATTINY24A-SSUR Atmel, ATTINY24A-SSUR Datasheet - Page 182

• Manufacturer Part Number: ATTINY24A-SSUR
• Description: MCU AVR 2KB FLASH 20MHZ 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY24A-SSUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 12
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Package: 14SOIC W
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 12
• Interface Type: SPI/USI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

21. Typical Characteristics
21.1
182
Supply Current of I/O Modules
ATtiny24A/44A/84A
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.
The tables and formulas below can be used to calculate the additional current consumption for
the different I/O modules in Active and Idle mode. The enabling or disabling of the I/O modules
is controlled by the Power Reduction Register. See
details.
Table 21-1.
Table 21-2
ages and frequencies than those mentioned in the
I
CP
PRR bit
PRTIM1
PRTIM0
PRUSI
PRADC
≈
V
CC
CC
×
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)
f
SW
V
CC
= 2V, f = 1 MHz
1.6 µA
4.4 µA
1.6 µA
8.0 µA
L
= load capacitance and f
V
Typical numbers
CC
Table 21-1
= 3V, f = 4 MHz
“Power Reduction Register” on page 35
11 µA
29 µA
11 µA
55 µA
SW
above.
= average switching frequency of
V
CC
= 5V, f = 8 MHz
120 µA
240 µA
48 µA
48 µA
8183C–AVR–03/11
for