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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF8553DTT/A датащи(PDF) 36 Page - NXP Semiconductors |
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PCF8553DTT/A датащи(HTML) 36 Page - NXP Semiconductors |
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36 / 51 page  NXP Semiconductors PCF8553 40 × 4 LCD segment driver VDD = 1.8 V to 5.5 V; VSS = 0 V; Tamb = -40 °C to +85 °C; unless otherwise specified; all timing values are valid within the operating supply voltage and Tamb range and are referenced to VIL and VIH with an input voltage swing of VSS to VDD. [1] Symbol Parameter Conditions Min Typ Max Unit tr rise time of both SDA and SCL signals fSCL = 400 kHz - - 0.3 µs tf fall time of both SDA and SCL signals - - 0.3 µs Cb capacitive load for each bus line - - 400 pF tw(spike) spike pulse width on the I2C-bus - - 50 ns Table 19. I2C-bus characteristics...continued [1] The I2C-bus interface of PCF8553 is 5 V tolerant. SDA mga728 SDA SCL tSU;STA tSU;STO tHD;STA tBUF tLOW tHD;DAT tHIGH tr tf tSU;DAT Figure 26. I2C-bus timing waveforms VDD = 1.8 V to 5.5 V; VSS = 0 V; Tamb = -40 °C to +85 °C; unless otherwise specified; all timing values are valid within the operating supply voltage and Tamb range and are referenced to VIL and VIH with an input voltage swing of VSS to VDD. Symbol Parameter Conditions Min Typ Max Unit Pin SCL fSCL SCL clock frequency - - 5 MHz tLOW LOW period of the SCL clock 150 - - ns tHIGH HIGH period of the SCL clock 80 - - ns tr rise time - - 100 ns tf fall time - - 100 ns Pin CE Table 20. SPI-bus characteristics PCF8553 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 4 — 20 April 2021 36 / 51 |
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