ATTINY44A-MU Atmel, ATTINY44A-MU Datasheet - Page 174

• Manufacturer Part Number: ATTINY44A-MU
• Description: IC MCU AVR 4K FLASH 20MHZ 20QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY44A-MU

• 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: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 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: 20-MLF®, QFN
• Processor Series: ATTINY4x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI/USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 2
• 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: 20-ch x 10-bit
• Data Rom Size: 256 B
• A/d Bit Size: 10 bit
• A/d Channels Available: 20
• Height: 0.74 mm
• Length: 4 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Width: 4 mm
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 20-1.
Notes:
20.3
174
Symbol
I
CC
1. Typical values at 25°C.
2. “Min” means the lowest value where the pin is guaranteed to be read as high.
3. “Max” means the highest value where the pin is guaranteed to be read as low.
4. Not tested in production.
5. Although each I/O port can sink more than the test conditions (10 mA at V
6. Although each I/O port can source more than the test conditions (10 mA at V
7. The RESET pin must tolerate high voltages when entering and operating in programming modes and, as a consequence,
8. These are test limits, which account for leakage currents of the test environment. Actual device leakage currents are lower.
9. Values are with external clock using methods described in
10. BOD Disabled.
Speed
ATtiny24A/44A/84A
conditions (non-transient), the sum of all I
may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test condition.
conditions (non-transient), the sum of all I
may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.
has a weak drive strength as compared to regular I/O pins. See
(starting on
enabled (PRR = 0xFF) and there is no I/O drive.
Parameter
Supply Current,
Active Mode
Supply Current,
Idle Mode
Supply Current,
Power-Down Mode
DC Characteristics. T
(9)
page
(9)
The maximum operating frequency of the device depends on V
relationship between maximum frequency and V
Figure 20-1.
226).
(10)
A
= -40°C to +85°C (Continued)
20 MHz
Condition
f = 1 MHz, V
f = 4 MHz, V
f = 8 MHz, V
f = 1 MHz, V
f = 4 MHz, V
f = 8 MHz, V
WDT enabled, V
WDT disabled, V
4 MHz
Maximum Frequency vs. V
OL
OH
1.8V
(for all ports) should not exceed 60 mA. If I
(for all ports) should not exceed 60 mA. If I
CC
CC
CC
CC
CC
CC
= 2V
= 3V
= 5V
= 2V
= 3V
= 5V
CC
CC
= 3V
= 3V
“Minimizing Power Consumption” on page
Figure
CC
Min
21-87,
CC
is linear in the region 1.8V < V
CC
CC
= 5V, 5 mA at V
Figure
= 5V, 5 mA at V
Typ
0.25
0.04
0.25
0.13
1.2
4.4
1.3
4.5V
21-88,
4
(1)
OL
OH
CC.
exceeds the test conditions, V
exceeds the test condition, V
As shown in
Figure
CC
CC
= 3V) under steady state
= 3V) under steady state
21-89, and
5.5V
Max
35. Power Reduction is
0.5
0.2
0.6
10
2
2
7
2
Figure
CC
8183C–AVR–03/11
Figure 21-90
< 4.5V.
20-1, the
Units
mA
mA
mA
mA
mA
mA
µA
µA
OH
OL