ATTINY28L-4AI Atmel, ATTINY28L-4AI Datasheet - Page 41

• Manufacturer Part Number: ATTINY28L-4AI
• Description: IC AVR MCU 2KFLSH 4MHZ 3V 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY28L-4AI

• 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Ram Size: -
• Data Converters: -
• Connectivity: -

1062F–AVR–07/06
Figure 34. Modulation with ONTIM = 1, MCONF = 011
Note:
Figure 35. Modulation with ONTIM = 3, MCONF = 001
Note:
Table 17. Some Common Modulator Configurations
Crystal/Resonator
Frequency
455 kHz
455 kHz
455 kHz
455 kHz
455 kHz
1 MHz
1.8432 MHz
1.8432 MHz
1.8432 MHz
2 MHz
2 MHz
2.4576 MHz
3.2768 MHz
4 MHz
455 kHz
1 MHz
1.82 MHz
1.82 MHz
1.8432 MHz
1.8432 MHz
2 MHz
Clock frequency: 3.64 MHz; modulation frequency: 455 kHz; duty-cycle: 25%
Clock frequency: 3.64 MHz; modulation frequency: 455 kHz; duty-cycle: 50%
CLK
PA2
CLK
PA2
Carrier
Frequency
455 kHz
455 kHz
455 kHz
455 kHz
455 kHz
455 kHz
455 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
38 kHz
% Error in
Frequency
0.2
0.2
0.2
0.2
0.2
1.2
1.1
1.1
1.1
1.2
1.2
1.1
2.0
1.2
0.0
9.9
0.0
0.0
1.3
1.3
9.9
Duty-cycle
approx. 50%
25%
33%
50%
67%
75%
50%
25%
33%
50%
25%
50%
50%
25%
25%
50%
25%
50%
25%
50%
25%
ATtiny28L/V
ONTIM
Value
12
11
15
23
12
25
31
21
25
2
3
5
3
2
X
0
0
1
0
1
0
MCONF
Value
011
010
001
100
101
001
011
010
001
011
001
001
011
011
111
001
011
001
011
001
011
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