PCF8574ATS/3,118

NXP### 串行输入/输出外设

串行 I/O 扩展器，Cypress Semiconductor

得捷:
IC XPNDR 100KHZ I2C 20SSOP

立创商城:
PCF8574ATS/3,118

欧时:
NXP PCF8574ATS/3,118 I/O扩展器, 20引脚 SSOP封装

e络盟:
输入/输出扩展, 8bit, 400 kHz, I2C, SMBus, 2.5 V, 6 V, SSOP

艾睿:
I2C GPIO Expander 100kHz 6V 20-Pin SSOP T/R

安富利:
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.

富昌:
PCF8574 系列 2.5 - 6 V 远程 8位 I/O 扩展器 用于I2C总线 - SSOP-20

Chip1Stop:
I2C GPIO Expander 6V 20-Pin SSOP T/R

Verical:
I2C Interface 100kHz 6V 20-Pin SSOP T/R

Newark:
# NXP  PCF8574ATS/3,118  I/O Expander, 8bit, 100 kHz, I2C, 2.5 V, 6 V, SSOP

力源芯城:
I2C总线远程8位I/O扩展器

DeviceMart:
IC I/O EXPANDER I2C 8B 20SSOP

Win Source:
I/O Expander 8 I2C 100kHz 20-SSOP