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PCF8574RGYR

PCF8574RGYR

Active
Texas Instruments

8-BIT 2.5- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT

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PCF8574RGYR

PCF8574RGYR

Active
Texas Instruments

8-BIT 2.5- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT

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Description

General part information

PCF8574 Series

This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5V to 6V VCC operation.

The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of 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.

Technical Specifications

Parameters and characteristics for this part

SpecificationPCF8574RGYR
Clock Frequency100 kHz
Current - Output Sink25 mA
Current - Output Source1 mA
FeaturesPOR
InterfaceI2C
Interrupt OutputYes
Mounting TypeSurface Mount
Number of I/O8
Operating Temperature (Max)85 °C
Operating Temperature (Min)-40 °C
Output TypePush-Pull
Package / Case20-VFQFN Exposed Pad
Package Length3.5 mm
Package Name20-VQFN
Package Width4.5 mm
Voltage - Supply (Maximum)6 V
Voltage - Supply (Minimum)2.5 V

Pricing

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