TEXAS INSTRUMENTS  PCF8574AN  I/O Expander, 8bit, 100 kHz, I2C, 2.5 V, 6 V, DIP

TEXAS INSTRUMENTS PCF8574AN

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Product Overview


This 8 bit input/output expander for the two line bidirectional bus (I2C) is designed for 2.5V to 6V VCC operation. The PCF8574AN provides general purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)]. The device features an 8 bit quasi-bidirectional I/O port (P0–P7), including latched outputs with high current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data direction control signal. At power on, the I/Os are high. In this mode, only a current source to VCC is active. An additional strong pull-up to VCC allows fast rising edges into heavily loaded outputs. This device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high before being used as inputs.
  • Low standby current consumption of 10mA max.
  • Compatible with most microcontrollers
  • Latched outputs with high current drive
  • I2C to parallel port expander capability for directly driving LEDs
  • Open-drain interrupt output
  • Latch-Up performance exceeds 100mA Per JESD 78, Class II

Applications

Automation & Process Control; Automotive; Clock & Timing; Consumer Electronics; Defence, Military & Aerospace; Embedded Design & Development; LED Lighting; Industrial; Motor Drive & Control
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Product Information


  • Chip Configuration 8bit
  • Bus Frequency 100kHz
  • IC Interface Type I2C
  • Supply Voltage Min 2.5V
  • Supply Voltage Max 6V
  • Interface Case Style DIP
  • No. of Pins 16Pins
  • No. of I/O's 8I/O's
  • Packaging Each
  • MSL -
  • Supply Voltage Range 2.5V to 6V
  • SVHC No SVHC (15-Jun-2015)

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    Availability:
     
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    • 513 Further stock expected to ship on May 15, 2016
    • More stock available week commencing 6/13/16

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