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24-TSSOP
Integrated Circuits (ICs)

PCF8575PWRE4

Unknown
Texas Instruments

IC XPND 400KHZ I2C SMBUS 24TSSOP

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24-TSSOP
Integrated Circuits (ICs)

PCF8575PWRE4

Unknown
Texas Instruments

IC XPND 400KHZ I2C SMBUS 24TSSOP

Deep-Dive with AI

Technical Specifications

Parameters and characteristics for this part

SpecificationPCF8575PWRE4
Clock Frequency400 kHz
Current - Output Source/Sink1 mA, 25 mA
FeaturesPOR
InterfaceI2C, SMBus
Interrupt OutputTrue
Mounting TypeSurface Mount
Number of I/O16
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Output TypePush-Pull
Package / Case24-TSSOP
Package / Case0.173 in, 4.4 mm
Supplier Device Package24-TSSOP
Voltage - Supply [Max]5.5 V
Voltage - Supply [Min]2.5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyTape & Reel (TR) 2000$ 1.12
6000$ 1.08

Description

General part information

PCF8575C Series

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 4.5-V to 5.5-V VCCoperation.

The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and serial data (SDA).

The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), 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 in 3-state mode. The strong pullup to VCCallows 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. After power on, as all the I/Os are set to 3-state, all of them can be used as inputs. Any change in setting of the I/Os as either inputs or outputs can be done with the write mode. If a high is applied externally to an I/O that has been written earlier to low, a large current (IOL) flows to GND.

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