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Abacus Technologies I/O Expanders

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Non-Authorized Stocking Distributors

Texas Instruments

$ 1.470

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8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Rochester Electronics		PCA9554DGVR	13,607			USD			1.420	1.270	1.190	11m
	Verical	3	PCA9554DGVR	1,832	212		USD				1.588	1.488
	Mouser		595-PCA9554DGVR	1,990	1	Tape & Reel	USD	4.340	2.870	2.220	1.610	1.520
	Win Source		WS-PCA9554DGVR	20	4		USD		11.947	9.707	9.707	9.707	1h
	Worldway Electronics		PCA9554DGVR	20,801	7	Tape & Reel	USD		0.477	0.462	0.438	0.438	1d

MCP23S18T-E/MJVAO

$ 1.570

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SPI, 16-bit I/O Port Expander, 1.8 to 5.5V, QFN-24, RoHS

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Microchip		MCP23S18T-E/MJVAO	3,490	1	Tape & Reel	USD	2.150	2.150	1.630	1.570	1.560	7h
	Onlinecomponents.com		MCP23S18T-E/MJVAO	0	1	Bulk
	Mouser		579-MCP23S18T-EMJVAO	63	1	Tape & Reel	USD					1.500
	Worldway Electronics		MCP23S18T-E/MJVAO	27,313	7	Tape & Reel	USD		0.496	0.481	0.456	0.456	1d
	Fly-Wing Technology		MCP23S18T-E/MJVAO	2,363			USD	4.431	4.180	3.943	3.509	3.509	23h

MCP23S17-E/SSVAO

$ 1.430

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Mcp23S17-E/Ssvao Rohs Compliant: Yes |Microchip Technology MCP23S17-E/SSVAO

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Microchip		MCP23S17-E/SSVAO	5,502	1	Tube	USD	1.960	1.960	1.480	1.430	1.420	7h
	Newark		MCP23S17-E/SSVAO	0	47
	Onlinecomponents.com		MCP23S17-E/SSVAO	0	1	Bulk
	Win Source		WS-MCP23S17-E/SSVAO	6,364	35		USD			1.313	1.067	1.067	1h
	Worldway Electronics		MCP23S17-E/SSVAO	16,683	7	Tube	USD		0.283	0.274	0.260	0.260	1d

Texas Instruments

$ 0.781

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

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Arrow Electronics	2	TCA9534PWR	1	1		USD	1.343	1.343	1.343	1.343	1.343
	DigiKey	3	296-40574-1-ND	14,926	1	Cut Tape	USD	1.530	1.114	0.897	0.802	0.802
	Mouser		595-TCA9534PWR	13,204	1	Tape & Reel	USD	1.480	1.090	1.050	0.761	0.716
	Component Stockers USA		TCA9534PWR	20,951			USD	0.740	0.690	0.520	0.570	0.490	>1wk
	Weyland Electronics Group Pte. Ltd.		TCA9534PWR	9,200	1	Tape & Reel	USD	0.263	0.263	0.263	0.263	0.263	1d

Texas Instruments

$ 1.710

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Low Voltage 16-Bit I2C and SMBus Low-Power I/O Expander 24-Pin TSSOP

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Arrow Electronics		TCA9539QPWRQ1	1,840	1		USD	2.561	1.955	1.627	1.620	1.620
	Verical		TCA9539QPWRQ1	1,835	1		USD	2.561	1.955	1.627	1.620	1.620
	Weyland Electronics Group Pte. Ltd.		TCA9539QPWRQ1	20,000	1	Tape & Reel	USD	0.301	0.301	0.301	0.301	0.301	1d
	Win Source		WS-TCA9539QPWRQ1	30,000	100		USD			0.523	0.407	0.407	1h
	Worldway Electronics		TCA9539QPWRQ1	27,227	7	Tape & Reel	USD		0.405	0.386	0.386	0.386	1d

Texas Instruments

$ 1.370

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16-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 24-TSSOP -40 to 85

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Arrow Electronics		PCA9535PWR	0	2K		USD					1.199
	Weyland Electronics Group Pte. Ltd.		PCA9535PWR	8,000	1	Tape & Reel	USD	0.526	0.526	0.526	0.526	0.526	1d
	Win Source		WS-PCA9535PWR	12,000	60		USD			0.850	0.662	0.662	1h
	Classic Components	2	PCA9535PWR	15,423									3d
	ICPartonline		PCA9535PWR	12,274			USD	1.395	1.325	1.255	1.186	1.116	>1wk

STMicroelectronics

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Port Expander With Advanced Touch Screen Controller Serial I2C/SPI 400kHz 16-Pin QFN EP T/R

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	element14 APAC	2	STMPE811QTR	0	1	Cut Tape	USD*	1.929*	1.507*	1.382*	1.265*	1.218*	14h
	Farnell	2	STMPE811QTR	0	1	Cut Tape	USD*	3.600*	2.690*	2.288*	2.288*	2.288*	19h
	Component Stockers USA		STMPE811QTR	20,000			USD	6.560	6.530	6.490	6.440	6.440	>1wk
	Weyland Electronics Group Pte. Ltd.		STMPE811QTR	8,000	1	Tape & Reel	USD	1.803	1.803	1.803	1.803	1.803	1d
	Win Source		WS-STMPE811QTR	26,481	17		USD			2.543	2.352	2.352	1h

Texas Instruments

$ 1.036

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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

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	Arrow Electronics		PCA9534RGVR	4	1		USD	0.911	0.911	0.911	0.911	0.911
	DigiKey	3	296-22708-1-ND	9,173	1	Cut Tape	USD	2.140	1.583	1.289	1.175	1.175
	Mouser		595-PCA9534RGVR	5,039	1	Tape & Reel	USD	2.140	1.590	1.290	1.160	1.050
	Win Source		WS-PCA9534RGVR	27,560	45		USD			1.162	0.774	0.774	1h
	Worldway Electronics		PCA9534RGVR	16,188	7	Tape & Reel	USD		0.525	0.509	0.482	0.482	1d

Texas Instruments

$ 1.390

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I2C/SMBus Interface 100kHz/400kHz 5.5V 16-Pin VQFN EP T/R

Manufacturer Page

	Distributor		SKU		Min	Pkg	Bulk Pricing						Updated
	DigiKey	2	296-22709-1-ND	2,847	1	Cut Tape	USD	2.860	2.136	1.755	1.626	1.626
	Mouser		595-PCA9554ARGVR	504	1	Tape & Reel	USD	2.530	1.890	1.550	1.390	1.320
	Component Stockers USA		PCA9554ARGVR	11,295			USD	1.480	1.250	1.070	0.730	0.730	>1wk
	Win Source		WS-PCA9554ARGVR	103,758	55		USD			0.983	0.655	0.655	1h
	Worldway Electronics		PCA9554ARGVR	17,833	7	Tape & Reel	USD		0.227	0.220	0.209	0.209	1d

Texas Instruments

$ 0.919

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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
	DigiKey	3	296-20978-1-ND	2,126	1	Cut Tape	USD	1.810	1.332	1.079	0.975	0.975
	Arrow Electronics		PCA9557PWR	0	2K		USD					0.796
	Mouser		595-PCA9557PWR	5,135	1	Tape & Reel	USD	1.760	1.300	1.050	0.919	0.867
	Weyland Electronics Group Pte. Ltd.		PCA9557PWR	10,000	1	Tape & Reel	USD	0.436	0.436	0.436	0.436	0.436	1d
	Win Source		WS-PCA9557PWR	10,850	75		USD			0.692	0.539	0.539	1h