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Classic Components I/O Expanders

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Texas Instruments

$ 1.050

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

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Arrow Electronics		PCA9557PW	164	1		USD	1.910	1.409	1.093	1.093	1.093
	Verical		PCA9557PW	164	2		USD		1.308	1.020	0.989	0.884
	Mouser		595-PCA9557PW	9,539	1	Tube	USD	1.960	1.440	1.160	1.050	0.958
	Component Stockers USA		PCA9557PW	847			USD	1.980	1.780	1.430	1.180	1.180	>1wk
	ICPartonline		PCA9557PW	8,467			USD	0.858	0.815	0.773	0.730	0.687	>1wk

Texas Instruments

$ 1.200

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

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Rochester Electronics		PCA9557D	451			USD			1.450	1.200	1.070	17h
	Verical		PCA9557D	405	207		USD				1.500	1.338
	Mouser		595-PCA9557D	5,155	1	Tube	USD	1.960	1.440	1.310	1.040	0.958
	Win Source		WS-PCA9557D	1,098	30		USD			1.531	1.284	1.284	17h
	ICPartonline		PCA9557D	14,251			USD	0.858	0.815	0.773	0.730	0.687	>1wk

Texas Instruments

$ 1.060

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

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Rochester Electronics		PCA9557DT	250			USD			1.160	0.963	0.858	17h
	DigiKey	3	296-PCA9557DTCT-ND	315	1	Cut Tape	USD	1.930	1.421	1.153	1.153	1.153
	Mouser		595-PCA9557DT	338	1	Tape & Reel	USD	1.930	1.430	1.160	1.060	0.987
	Win Source		WS-PCA9557DT	21,000	65		USD			0.781	0.521	0.521	17h
	Worldway Electronics		PCA9557DT	20,960	7	Tape & Reel	USD		0.306	0.296	0.281	0.281	16h

Rochester Electronics

$ 25.910

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MCS-48 Input/output Expander Parallel I/o Port, 4-BIT, 16 I/o, NMOS, PDIP24

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	CoreStaff		ST34213850	1	1		USD	17.303	11.370	10.876	10.876	10.876	11h
	Rochester Electronics		P8243	9,858			USD	29.440	29.440	27.670	25.910	25.910	17h
	DigiKey Marketplace		2156-P8243-ND	9,858	8	Bulk	USD		36.800	36.800	36.800	36.800
	Win Source		WS-P8243	7,000	18		USD			2.508	2.174	2.174	17h
	Classic Components		P8243	1			USD			20.764	20.764	20.764	7h

$ 1.350

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I/O Port Expander, I2C / SMBus, 8-Bit, with Active Low Interrupt

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Verical	2	CAT9534WI-GT2	6,000	209		USD				1.500	1.338
	Rochester Electronics		CAT9534WI-GT2	11,945			USD			1.440	1.200	1.070	17h
	Worldway Electronics		CAT9534WI-GT2	19,448	7	Tape & Reel	USD		0.360	0.349	0.331	0.331	16h
	Fly-Wing Technology		CAT9534WI-GT2	2,218			USD	2.793	2.635	2.486	2.213	2.213	1d
	Classic Components		CAT9534WI-GT2	13									7h

$ 4.900

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Parallel I/O Port, 16 I/O, CMOS, PDIP24

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Rochester Electronics		CDP1852E	1,173			USD			5.470	4.900	4.610	17h
	Anlinkda		CDP1852E	6,953			USD	8.202	7.346	6.679	6.443	6.327	15h
	Vigor Components		CDP1852E	1,237			USD	5.860	5.860	5.860	5.860	5.860	11h
	Bettlink		CDP1852E	900			USD	6.731	5.904	5.367	4.732	4.464	1d
	Verical	3	CDP1852E	198	53		USD			6.838	6.125	5.763

Texas Instruments

$ 0.388

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I2C Interface 100kHz/400kHz 5.5V 16-Pin UQFN T/R

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Arrow Electronics		TCA6408ARSVR	0	3K		USD					0.317
	Component Stockers USA		TCA6408ARSVR	54,356			USD	0.580	0.580	0.470	0.250	0.260	>1wk
	Weyland Electronics Group Pte. Ltd.		TCA6408ARSVR	13,961	1	Tape & Reel	USD	1.503	1.503	1.503	1.503	1.503	18h
	Win Source		WS-TCA6408ARSVR	11,130	7		USD		8.254	6.425	6.425	6.425	17h
	Worldway Electronics		TCA6408ARSVR	17,466	7	Tape & Reel	USD		0.206	0.196	0.196	0.196	16h

Texas Instruments

$ 1.056

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

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Component Stockers USA		TCA9535RGER	8,360			USD	1.460	1.320	1.060	0.720	0.720	>1wk
	Weyland Electronics Group Pte. Ltd.		TCA9535RGER	31,049	1	Tape & Reel	USD	0.972	0.972	0.972	0.972	0.972	18h
	Win Source		WS-TCA9535RGER	23,870	22		USD			1.858	1.558	1.558	17h
	Worldway Electronics		TCA9535RGER	7,066	7	Tape & Reel	USD		0.380	0.362	0.362	0.362	16h
	ICPartonline		TCA9535RGER	34,043			USD	0.680	0.646	0.612	0.578	0.544	>1wk

Texas Instruments

$ 1.299

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8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TSSOP -40 to 85

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	DigiKey		296-26295-5-ND	453	1	Tube	USD	2.330	1.723	1.443	1.319	1.319
	Mouser		595-PCF8574PW	40,317	1	Tube	USD	2.260	1.680	1.330	1.280	1.170
	Weyland Electronics Group Pte. Ltd.		PCF8574PW	5,523	1	Tape & Reel	USD	0.449	0.449	0.449	0.449	0.449	18h
	Win Source		WS-PCF8574PW	12,780	50		USD			1.061	0.826	0.826	17h
	Worldway Electronics		PCF8574PW	8,398	7	Tube	USD		0.755	0.732	0.694	0.694	16h

Texas Instruments

$ 1.280

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8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TSSOP -40 to 85

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Rochester Electronics		PCF8574APW	10			USD			1.430	1.280	1.210	17h
	Mouser		595-PCF8574APW	5,720	1	Tube	USD	2.350	1.730	1.400	1.280	1.170
	Win Source		WS-PCF8574APW	15,689	40		USD			1.106	0.899	0.899	17h
	Worldway Electronics		PCF8574APW	18,796	7	Tube	USD		0.440	0.427	0.404	0.404	16h
	ICPartonline		PCF8574APW	13,782			USD	0.698	0.663	0.628	0.593	0.558	>1wk