PCF8574PWRG4 Overview
It features 8 I/Os.TSSOP comes in a package with the device.The case comes in the form of a Tape & Reel (TR).I would say that it has 20 terminations as a whole.There are a total of 20 pins on the part.A voltage is provided at 5V by the device.To run 260, the peak reflow temperature is taken into account.There are a total of four 1 ports on the device.An IC chip has 8 bits in total.3/5V can be used to deliver the power.There are 20 pins on the device.An electrical current flows through the chip when it is supplied with voltage 6V.The transistor belongs to the PARALLEL IO PORT, GENERAL PURPOSE uPs/uCs/peripheral ICs type.A maximum operating temperature of 85°C has been reached.A minimum working temperature of -40°C is required for this device.There is a maximum frequency of 100kHz for this chip.If it is run at a frequency of 100kHz, then it can perform effectively.
PCF8574PWRG4 Features

PCF8574PWRG4 Applications
There are a lot of Texas Instruments
PCF8574PWRG4 I/O Expanders applications.

Multiprotocol RFID Readers: EPC-GEN2, ISD and IPX
IDEN, PHS, GSM Basestations
Repeaters, Radio Links, and Modems
Wireless Telemetry
JTRS
802.11x Receivers
IDEN
PHS
TD-SCDMA
CDMA2000

Package / Case	TSSOP
Surface Mount	YES
Number of Pins	20
Weight	76.997305mg
Packaging	Tape & Reel (TR)
JESD-609 Code	e4
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	20
ECCN Code	EAR99
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Max Operating Temperature	85°C
Min Operating Temperature	-40°C
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	260
Supply Voltage	5V
Terminal Pitch	0.65mm
Frequency	100kHz
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Pin Count	20
Qualification Status	Not Qualified
Operating Supply Voltage	6V
Supply Voltage-Max (Vsup)	6V
Power Supplies	3/5V
Temperature Grade	INDUSTRIAL
Number of I/O	8
Number of Ports	1
uPs/uCs/Peripheral ICs Type	PARALLEL IO PORT, GENERAL PURPOSE
Number of Bits	8
Supply Current-Max	0.1mA
Frequency (Max)	100kHz
Length	6.5mm
Height Seated (Max)	1.2mm
Width	4.4mm
RoHS Status	RoHS Compliant
Lead Free	Lead Free