ATTINY28L-4AU Atmel, ATTINY28L-4AU Datasheet - Page 57

• Manufacturer Part Number: ATTINY28L-4AU
• Description: IC MCU AVR 2K FLASH 4MHZ 32-TQFP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY28L-4AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 11
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Processor Series: ATTINY2x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 32 B
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 11
• Number Of Timers: 1
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Package: 32TQFP
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 4 MHz
• Ram Size: 32 Byte
• Operating Supply Voltage: 3.3|5 V
• For Use With: ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIPATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Ram Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

Typical
Characteristics
1062F–AVR–07/06
The following charts show typical behavior. These figures are not tested during manu-
facturing. All current consumption measurements are performed with all I/O pins
configured 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
where C
quency of I/O pin.
The parts are characterized at frequencies and voltages higher than test limits. Parts are
not guaranteed to function properly at frequencies and voltages 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 42. Active Supply Current vs. Frequency
18
16
14
12
10
8
6
4
2
0
L
= Load Capacitance, V
0
V
CC
= 1.8V
1
2
ACTIVE SUPPLY CURRENT vs. FREQUENCY
3
4
V
CC
= 2.1V
5
CC
Frequency (MHz)
= Operating Voltage and f = Average Switching Fre-
6
T
A
7
V
= 25˚C
CC
= 2.4V
8
V
CC
9
= 2.7V
10
V
V
CC
CC
= 3.3V
= 3.0V
11
12
ATtiny28L/V
V
CC
= 3.6V
13
V
V
CC
CC
= 4.5V
= 4.0V
14
V
V
V
CC
CC
CC
= 6.0V
= 5.5V
= 5.0V
15
L
• V
CC
• f,
57