ATTINY44A-MU Atmel, ATTINY44A-MU Datasheet - Page 20

• 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

9. Datasheet Revision History
9.1
9.2
20
Rev. 8183C – 03/11
Rev. 8183B – 03/10
ATtiny24A/44A/84A
1. Added:
2. Updated:
1. Updated template.
2. Added UFBGA package (15CC1) in:
3. Separated typical characteristic plots, added
4. Updated sections:
5. Updated Figures:
6. Updated Tables:
– ATtiny84A, including typical characteristics plots
–
–
– Analog Comparator Offset plots for ATtiny24A
– Extended temperature part numbers in
– Bit syntax throughout the datasheet, e.g. from CS02:0 to CS0[2:0]
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page
page
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Section 3.3 “Capacitive Touch Sensing” on page 6
Table 6-8, “Capacitance of Low-Frequency Crystal Oscillator,” on page 28
ATtiny44A
270
Section 6.4 “Clock Output Buffer” on page
Table 16-4, “Single-Ended Input channel Selections,” on page
Internal 1.1V Reference
Table 19-16, “High-voltage Serial Programming Instruction Set for
ATtiny24A/44A/84A,” on page
Table 20-1, “DC Characteristics. T
Section 14.5.4 “USIBR – USI Buffer Register” on page
Section 24. “Ordering Information” on page
marking, updated notes
Figure 4-1 “Block Diagram of the AVR Architecture” on page 7
Figure 8-1 “Reset Logic” on page 38
Figure 14-1 “Universal Serial Interface, Block Diagram” on page
USIBR
Figure 19-5 “High-voltage Serial Programming Waveforms” on page 169
Table 19-11, “Minimum Wait Delay Before Writing the Next Flash or EEPROM
Location,” on page
2,
275.
Section 24. “Ordering Information” on page
(Figure 21.3.11 on page
164, updated value for t
170, adjusted notes
A
“Features” on page
236)
= -40°C to +85°C,” on page
Section 24. “Ordering Information” on page
30, changed CLKO to CKOUT
Section 21.2 “ATtiny24A” on page
WD_ERASE
270, added tape & reel and topside
(Figure 21.2.10 on page
270, and
1,
127, header updated
“Pin Configurations” on
Section 25.3 “15CC1” on
145, added note for
173, adjusted notes
116, USIDB ->
208) and
8183CS–AVR–03/11
183.