PCF8545ATT datasheet(30/51 Pages) NXP

номер детали	PCF8545ATT

подробное описание детали	Universal 36 횞 4 LCD segment driver

PDF	51 Pages

Scroll/Zoom	100%

производитель	NXP [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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NXP Semiconductors

PCF8551

Universal 36 × 4 LCD segment driver

• CE set HIGH

aaa-011954

display data

AP[4:0]

R/W default

SCL

SDIO

Data transfers are terminated by de-asserting CE (set CE to logic 1).

Figure 21. SPI-bus read example: reading two data bytes from registers 04h and 05h

10.3 EMC detection

The PCF8551 is ruggedized against EMC susceptibility; however it is not possible to

cover all cases. To detect if a severe EMC event has occurred, it is possible to check the

responsiveness of the device by reading its registers.

11 Internal circuitry

VSS

SCL, SDA/CE

VDD

PORE, SDIO, CLK

VSS

VLCD

COM0 to

COM3

SEG0 to

SEG35

aaa-013225

Figure 22. Device protection diagram

12 Safety notes

CAUTION

This device is sensitive to ElectroStatic Discharge (ESD). Observe

precautions for handling electrostatic sensitive devices.

Such precautions are described in the ANSI/ESD S20.20, IEC/ST 61340-5,

JESD625-A or equivalent standards.

PCF8551

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3.1 — 3 May 2021

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PCF8545ATT датащи(PDF) 30 Page - NXP Semiconductors