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ATtiny167-ESSZ датащи(PDF) 189 Page - ATMEL Corporation |
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ATtiny167-ESSZ датащи(HTML) 189 Page - ATMEL Corporation |
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189 / 282 page ![]() 189 7728D–AVR–07/09 ATtiny87/ATtiny167 In automotive applications, distributed voltages are very disturbed. The internal Current Source solution of ATtiny87/167 immunizes the address detection the against any kind of volt- age variations. Note: 1. 5V range: Max Rload 30KΩ 3V range: Max Rload 15KΩ Table 16-1. Example of Resistor Values(±5%) for a 8-address System (AVcc = 5V(1)) Physical Address Resistor Value Rload (Ohm) Typical Measured Voltage (V) Minimum Reading with a 2.56V ref Typical Reading with a 2.56V ref Maximum Reading with a 2.56V ref 0 1 000 0.1 40 1 2 200 0.22 88 2 3 300 0.33 132 3 4 700 0.47 188 4 6 800 0.68 272 5 10 000 1 400 6 15 000 1.5 600 7 22 000 2.2 880 Table 16-2. Example of Resistor Values(±1%) for a 16-address System (AVcc = 5V (1)) Physical Address Resistor Value R load (Ohm) Typical Measured Voltage (V) Minimum Reading with a 2.56V ref Typical Reading with a 2.56V ref Miximum Reading with a 2.56V ref 0 1 000 0.1 384045 1 1 200 0.12 46 48 54 2 1500 0.15 57 60 68 3 1800 0.18 69 72 81 4 2200 0.22 84 88 99 5 2700 0.27 104 108 122 6 3300 0.33 127 132 149 7 4700 0.47 181 188 212 8 6 800 0.68 262 272 306 9 8 200 0.82 316 328 369 10 10 000 1.0 386 400 450 11 12 000 1.2 463 480 540 12 15 000 1.5 579 600 675 13 18 000 1.8 694 720 810 14 22 000 2.2 849 880 989 15 27 000 2.7 1023 1023 1023 |
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