PCF8574ATS Купить - NXP

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PCF8574ATS

NXP

I2C GPIO Expander 100kHz 6V 20Pin SSOP

Наличие: 1,174 шт.

Адрес доставки: Москва

Цена: ₽ 0.00

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Производитель:

NXP

ЧипСити Номер продукта:

CC183318400

3D модель

Оплата:

Обновлено 17.06.2025, 07:48:07(GMT+3)

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PCF8574ATS характеристики

Атрибут	Значение атрибута
Номенклатура	PCF8574ATS
Производитель	NXP
ЧипСити Номер продукта	CC183318400
Даташит
3D модель	3D модель
Стиль Монтажа	Surface Mount
Количество Выводов	20 Pin
Корпус/Пакет	SSOP-20
Жизненный Цикл Продукта	Unknown
RoHS Комплаенс	RoHS Compliant
Бессвинцовая Статус	Lead Free
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PCF8574ATS описание продукта

Overview
The PCF8574/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I²C‑bus (serial clock (SCL), serial data (SDA)).
The devices consist of eight quasi-bidirectional ports, 100 kHz I²C‑bus interface, three hardware address inputs and interrupt output operating between 2.5 V and 6 V. The quasi-bidirectional port can be independently assigned as an input to monitor interrupt status or keypads, or as an output to activate indicator devices such as LEDs. System master can read from the input port or write to the output port through a single register.
The low current consumption of 2.5 μA (typical, static) is great for mobile applications and the latched output ports directly drive LEDs.
The PCF8574 and PCF8574A are identical, except for the different fixed portion of the slave address. The three hardware address pins allow eight of each device to be on the same I²C‑bus, so there can be up to 16 of these I/O expanders PCF8574/74A together on the same I²C‑bus, supporting up to 128 I/Os (for example, 128 LEDs).
The active LOW open-drain interrupt output (INT) can be connected to the interrupt logic of the microcontroller and is activated when any input state differs from its corresponding input port register state. It is used to indicate to the microcontroller that an input state has changed and the device needs to be interrogated without the microcontroller continuously polling the input register via the I²C‑bus.
The internal Power-On Reset (POR) initializes the I/Os as inputs with a weak internal pull-up 100 μA current source.
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## Features
* I²C-bus to parallel port expander
* 100 kHz I²C‑bus interface (Standard-mode I²C-bus)
* Operating supply voltage 2.5 V to 6 V with non-overvoltage tolerant I/O held to VDD with 100 μA current source
* 8-bit remote I/O pins that default to inputs at power-up
* Latched outputs directly drive LEDs
* Total package sink capability of 80 mA
* Active LOW open-drain interrupt output
* Eight programmable slave addresses using three address pins
* Low standby current (2.5 μA typical)
* -40 °C to +85 °C operation
* ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
* Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA
* Packages offered: DIP16, SO16, SSOP20
## Target Applications
* LED signs and displays
* Servers
* Key pads
* Industrial control
* Medical equipment
* PLC
* Cellular telephones
* Mobile devices
* Gaming machines
* Instrumentation and test measurement
## Features

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PCF8574ATS Даташит PDF

33 страницы, 795 КБ

09/04/2012