Classic Components I/O Expanders

$ 1.460

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8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 16-PDIP -40 to 85

Distributor	SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics	PCF8574N	66	1		USD	2.390	1.775	1.621	1.621	1.621
Verical	PCF8574N	66	2		USD		1.686	1.405	1.180	1.125
DigiKey	296-13109-5-ND	4,277	1	Tube	USD	2.730	2.038	1.672	1.480	1.403
Mouser	595-PCF8574N	6,845	1	Tube	USD	2.730	2.040	1.630	1.460	1.430
Component Stockers USA	PCF8574N	3,783			USD	1.250	1.250	1.160	1.250	1.250	>1wk

Texas Instruments

TCA9555PWR

$ 0.912

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3.5¦ÌA 10mA 25mA I2C, SMBus 16 1.65V 5.5V 400KHz TSSOP-24 , 1.2mm

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CAD Models

Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics		TCA9555PWR	2,315	1		USD	1.746	1.280	1.035	0.931	0.881
Verical		TCA9555PWR	2,315	3		USD		1.194	0.968	0.897	0.742
DigiKey	3	296-24827-1-ND	23,794	1	Cut Tape	USD	1.710	1.253	1.013	0.912	0.821
Mouser		595-TCA9555PWR	10,959	1	Tape & Reel	USD	1.710	1.260	1.020	0.912	0.836
Weyland Electronics Group Pte. Ltd.		TCA9555PWR	40,000	1	Tape & Reel	USD	0.210	0.210	0.210	0.210	0.210	1d

Texas Instruments

TCA9554PWR

$ 0.611

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Low Voltage 8-BIT I2C And Smbus I/o Expander With Interrupt Output And Configuration Registers

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CAD Models

Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics	2	TCA9554PWR	1,208	1		USD	1.379	1.003	0.806	0.702	0.702
Verical	2	TCA9554PWR	1,208	3		USD		0.938	0.754	0.644	0.573
DigiKey	3	296-30135-1-ND	5,420	1	Cut Tape	USD	1.510	1.104	0.889	0.794	0.794
Mouser		595-TCA9554PWR	7,854	1	Tape & Reel	USD	1.510	1.110	0.889	0.795	0.727
Weyland Electronics Group Pte. Ltd.		TCA9554PWR	6,000	1	Tape & Reel	USD	0.286	0.286	0.286	0.286	0.286	1d

Texas Instruments

TCA9535PWR

$ 0.884

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16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 24-TSSOP -40 to 85

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CAD Models

Distributor	SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics	TCA9535PWR	21	1		USD	1.511	1.106	1.106	1.106	1.106
Verical	TCA9535PWR	21	3		USD		1.041	0.857	0.715	0.635
Mouser	595-TCA9535PWR	174	1	Tape & Reel	USD	1.660	1.220	0.985	0.885	0.811
Weyland Electronics Group Pte. Ltd.	TCA9535PWR	12,190	1	Tape & Reel	USD	0.346	0.346	0.346	0.346	0.346	1d
Win Source	WS-TCA9535PWR	52,160	85		USD			0.590	0.459	0.459	1h

Texas Instruments

TCA9555RTWR

$ 0.746

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I2C/SMBus Interface 400kHz 5.5V 24-Pin WQFN EP T/R / IC I/O EXPANDER I2C 16B 24WQFN

Manufacturer Page

CAD Models

Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics	2	TCA9555RTWR	6,687	1		USD	1.593	1.166	0.941	0.822	0.771
Verical	2	TCA9555RTWR	89	11		USD			0.617	0.617	0.617
DigiKey	3	296-24857-1-ND	15,626	1	Cut Tape	USD	1.750	1.284	1.039	0.936	0.936
Mouser		595-TCA9555RTWR	2,873	1	Tape & Reel	USD	1.750	1.290	1.040	0.937	0.854
Weyland Electronics Group Pte. Ltd.		TCA9555RTWR	8,408	1	Tape & Reel	USD	0.263	0.263	0.263	0.263	0.263	1d

Texas Instruments

TCA6408AQPWRQ1

$ 0.969

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IC XPND 400KHZ I2C SMBUS 16TSSOP / I/O Expander 8 I2C, SMBus 400 kHz 16-TSSOP

Manufacturer Page

CAD Models

Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics	2	TCA6408AQPWRQ1	1,885	1		USD	2.042	1.503	1.221	1.109	1.109
Verical	2	TCA6408AQPWRQ1	1,885	3		USD		1.330	1.087	1.003	0.923
DigiKey	3	296-44902-1-ND	1,691	1	Cut Tape	USD	2.000	1.472	1.196	1.086	1.086
Mouser		595-TCA6408AQPWRQ1	141	1	Tape & Reel	USD	1.990	1.470	1.190	1.050	0.988
Weyland Electronics Group Pte. Ltd.		TCA6408AQPWRQ1	35,755	1	Tape & Reel	USD	0.301	0.301	0.301	0.301	0.301	1d

Texas Instruments

PCA9534ARGTR

$ 0.911

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8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 16-VQFN -40 to 85

Manufacturer Page

CAD Models

Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics	2	PCA9534ARGTR	8,800	1		USD	1.879	1.382	1.121	0.984	0.924
Verical	2	PCA9534ARGTR	8,800	2		USD		1.314	1.058	0.910	0.831
DigiKey	3	296-24731-1-ND	10,267	1	Cut Tape	USD	2.150	1.585	1.290	1.177	1.177
Mouser		595-PCA9534ARGTR	1,662	1	Tape & Reel	USD	2.150	1.590	1.300	1.150	1.060
Weyland Electronics Group Pte. Ltd.		PCA9534ARGTR	10,800	1	Tape & Reel	USD	1.047	1.047	1.047	1.047	1.047	1d

Analog Devices

MAX7317ATE+T

$ 4.170

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10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection

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CAD Models

Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
Analog Devices		MAX7317ATE+T	217	1	Tape & Reel	USD	5.940	4.554	3.826	3.445	3.349	7h
DigiKey	3	175-MAX7317ATE+TCT-ND	1,082	1	Cut Tape	USD	6.940	5.341	4.503	4.360	4.360
Arrow Electronics		MAX7317ATE+T	0	2500		USD					3.302
Farnell		MAX7317ATE+T	0	2500	Tape & Reel	USD*					3.778*	1d
Mouser		700-MAX7317ATET	1,127	1	Tape & Reel	USD	6.880	5.280	4.450	4.170	3.870

Texas Instruments

TCA9555DBR

$ 0.822

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16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 24-SSOP -40 to 85

Manufacturer Page

CAD Models

Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics		TCA9555DBR	1,132	1		USD	1.593	1.166	0.941	0.822	0.822
Verical		TCA9555DBR	1,132	3		USD		1.080	0.893	0.747	0.725
DigiKey	3	296-44626-1-ND	1,099	1	Cut Tape	USD	1.750	1.284	1.039	0.936	0.936
Mouser		595-TCA9555DBR	164	1	Tape & Reel	USD	1.750	1.290	1.040	0.937	0.859
Weyland Electronics Group Pte. Ltd.		TCA9555DBR	21,503	1	Tape & Reel	USD	0.329	0.329	0.329	0.329	0.329	1d

Texas Instruments

PCA9534PWR

$ 0.933

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8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 16-TSSOP -40 to 85

Manufacturer Page

CAD Models

Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
Arrow Electronics		PCA9534PWR	1,380	1		USD	1.787	1.307	1.058	0.953	0.953
Verical		PCA9534PWR	1,380	3		USD		1.180	0.956	0.865	0.764
DigiKey	3	296-21764-1-ND	29,887	1	Cut Tape	USD	1.750	1.280	1.036	0.933	0.933
Mouser		595-PCA9534PWR	4,932	1	Tape & Reel	USD	1.750	1.280	1.040	0.934	0.856
Weyland Electronics Group Pte. Ltd.		PCA9534PWR	6,000	1	Tape & Reel	USD	0.449	0.449	0.449	0.449	0.449	1d

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