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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF8545ATT датащи(PDF) 6 Page - NXP Semiconductors |
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PCF8545ATT датащи(HTML) 6 Page - NXP Semiconductors |
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6 / 53 page  NXP Semiconductors PCA8551 Automotive 36 × 4 LCD segment driver 6.2 Pin description Input or input/output pins must always be at a defined level (VSS or VDD) unless otherwise specified. Pin Symbol Type Description 1 to 5, 18 to 48 SEG0 to SEG35 output LCD segment outputs 6 to 9 COM0 to COM3 output LCD backplane outputs 10 VLCD supply LCD supply voltage 11 VDD supply supply voltage 12 VSS supply ground supply 14 CLK input/output internal oscillator output, external oscillator input [1] • must be left open if unused 15 SCL input serial clock input 17 PORE [2] input Power-On Reset (POR) enable • connect to VDD for enabling POR • connect to VSS (or leave open) for disabling POR Pin layout depending on product and bus type PCA8551ATT (I2C-bus) PCA8551BTT (SPI-bus) RST - input reset input, active LOW 13 - SDIO input/output serial data input/output SDA - input/output serial data line 16 - CE input chip enable input, active LOW Table 3. Pin description [1] Can be configured by command, see Table 5. [2] A series resistance between VDD and the pin must not exceed 1 kΩ to ensure proper functionality, see Section 15.3. PCA8551 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 3.1 — 3 May 2021 6 / 53 |
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