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FM31L278 Scheda tecnica(PDF) 11 Page - Cypress Semiconductor |
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FM31L278 Scheda tecnica(HTML) 11 Page - Cypress Semiconductor |
11 / 30 page FM33256B SPI Companion w/ FRAM Document Number: 001-86213 Rev. ** Page 11 of 30 Layout for Surface Mount Crystal Layout for Through Hole Crystal (red = top layer, green = bottom layer) (red = top layer, green = bottom layer) Table 4. Digital Calibration Adjustments Positive Calibration for slow clocks: Calibration will achieve 2.17 PPM after calibration Measured Frequency Range Error Range (PPM) Min Max Min Max Program Calibration Register to: 0 512.0000 511.9989 0 2.17 000000 1 511.9989 511.9967 2.18 6.51 100001 2 511.9967 511.9944 6.52 10.85 100010 3 511.9944 511.9922 10.86 15.19 100011 4 511.9922 511.9900 15.20 19.53 100100 5 511.9900 511.9878 19.54 23.87 100101 6 511.9878 511.9856 23.88 28.21 100110 7 511.9856 511.9833 28.22 32.55 100111 8 511.9833 511.9811 32.56 36.89 101000 9 511.9811 511.9789 36.90 41.23 101001 10 511.9789 511.9767 41.24 45.57 101010 11 511.9767 511.9744 45.58 49.91 101011 12 511.9744 511.9722 49.92 54.25 101100 13 511.9722 511.9700 54.26 58.59 101101 14 511.9700 511.9678 58.60 62.93 101110 15 511.9678 511.9656 62.94 67.27 101111 16 511.9656 511.9633 67.28 71.61 110000 17 511.9633 511.9611 71.62 75.95 110001 18 511.9611 511.9589 75.96 80.29 110010 19 511.9589 511.9567 80.30 84.63 110011 20 511.9567 511.9544 84.64 88.97 110100 21 511.9544 511.9522 88.98 93.31 110101 22 511.9522 511.9500 93.32 97.65 110110 23 511.9500 511.9478 97.66 101.99 110111 24 511.9478 511.9456 102.00 106.33 111000 25 511.9456 511.9433 106.34 110.67 111001 26 511.9433 511.9411 110.68 115.01 111010 27 511.9411 511.9389 115.02 119.35 111011 28 511.9389 511.9367 119.36 123.69 111100 29 511.9367 511.9344 123.70 128.03 111101 30 511.9344 511.9322 128.04 132.37 111110 31 511.9322 511.9300 132.38 136.71 111111 /CS SO CNT VBAK X2 X1 VSS /CS SO CNT VBAK X2 X1 VSS |
Codice articolo simile - FM31L278 |
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Descrizione simile - FM31L278 |
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