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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCA9570DP датащи(PDF) 20 Page - NXP Semiconductors |
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PCA9570DP датащи(HTML) 20 Page - NXP Semiconductors |
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20 / 32 page  PCA9570 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 4 — 17 September 2014 20 of 32 NXP Semiconductors PCA9570 Remote 4-bit general purpose outputs for 1 MHz I2C-bus a. P port load configuration b. Write mode (R/W =0) c. Read mode (R/W =1) CL includes probe and jig capacitance. tv(Q) is measured from 0.7 VDD on SCL to 50 % I/O (Pn) output. All inputs are supplied by generators having the following characteristics: PRR 10 MHz; Z o =50 ; tr/tf 30 ns. The outputs are measured one at a time, with one transition per measurement. All parameters and waveforms are not applicable to all devices. Fig 25. P port load circuit and voltage waveforms 002aag805 DUT CL = 50 pF 500 Ω Pn 2 × VDD 500 Ω 002aag806 SCL SDA P0 A tv(Q) 0.3 × VDD 0.7 × VDD P7 last stable bit unstable data Pn 002aag807 SCL Pn P0 A th(D) 0.3 × VDD 0.7 × VDD P7 tsu(D) |
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