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Interface Adapters

Western Design Center (WDC) interface adapters are designed to be easily implemented, program controlled interfaces between 8-bit microprocessor based systems and serial communication data sets and modems. WDC interface adapters include Asynchronous Communications Interface Adapter (ACIA), Peripheral Interface Adapter (PIA), and Versatile Interface Adapters (VIA). Each adapter type is designed to help interface between 8-bit microprocessors and various peripheral devices.

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Types of Interface ICs

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Product Type	Product	Type	Interface Type	Mounting Style	Package/Case
	I/O Controller Interface IC Versatile Interface Adapter W65C22S6TPG-14 Western Design Center (WDC) 1: $12.89 1,700In Stock	Mfr. Part No. W65C22S6TPG-14 Mouser Part No 955-W65C22S6TPG-14	Western Design Center (WDC)	I/O Controller Interface IC Versatile Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	1,700In Stock	$12.89 $10.01 $9.30 $8.51 View $8.08 $7.92 $7.72 Quote	Min.: 1 Mult.: 1		I/O Controller Interface IC	Versatile Interface Adapters		Serial	Through Hole	PDIP-40
	I/O Controller Interface IC Peripheral Interface Adapter W65C21S6TPG-14 Western Design Center (WDC) 1: $12.17 1,087In Stock 1,110Expected 6/10/2026	Mfr. Part No. W65C21S6TPG-14 Mouser Part No 955-W65C21S6TPG-14	Western Design Center (WDC)	I/O Controller Interface IC Peripheral Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	1,087In Stock 1,110Expected 6/10/2026	$12.17 $9.42 $8.73 $7.98 View $7.62 $7.41 $7.21 Quote	Min.: 1 Mult.: 1		I/O Controller Interface IC				Through Hole	PDIP-40
	I/O Controller Interface IC Peripheral Interface Adapter W65C21N6TPG-14 Western Design Center (WDC) 1: $12.17 1,658In Stock	Mfr. Part No. W65C21N6TPG-14 Mouser Part No 955-W65C21N6TPG-14	Western Design Center (WDC)	I/O Controller Interface IC Peripheral Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	1,658In Stock	$12.17 $9.42 $8.73 $7.98 View $7.62 $7.41 $7.21 Quote	Min.: 1 Mult.: 1		I/O Controller Interface IC				Through Hole	PDIP-40
	I/O Controller Interface IC Versatile Interface Adapter W65C22N6TPG-14 Western Design Center (WDC) 1: $12.89 300In Stock 310Expected 8/10/2026	Mfr. Part No. W65C22N6TPG-14 Mouser Part No 955-W65C22N6TPG-14	Western Design Center (WDC)	I/O Controller Interface IC Versatile Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	300In Stock 310Expected 8/10/2026	$12.89 $10.01 $9.30 $8.51 View $8.08 $7.92 $7.72 Quote	Min.: 1 Mult.: 1		I/O Controller Interface IC	Versatile Interface Adapters		Serial	Through Hole	PDIP-40
	I/O Controller Interface IC Versatile Interface Adapter W65C22S6TPLG-14 Western Design Center (WDC) 1: $12.88 1,818In Stock	Mfr. Part No. W65C22S6TPLG-14 Mouser Part No 955-W65C22S6TPLG-14	Western Design Center (WDC)	I/O Controller Interface IC Versatile Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	1,818In Stock	$12.88 $10.01 $9.30 $8.51 View $8.08 $7.92 $7.72 Quote	Min.: 1 Mult.: 1		I/O Controller Interface IC	Versatile Interface Adapters		Serial	SMD/SMT	PLCC-44
	Interface - Specialised Asynch Communication Interface Adapter W65C51N6TPG-14 Western Design Center (WDC) 1: $9.38 497In Stock	Mfr. Part No. W65C51N6TPG-14 Mouser Part No 955-W65C51N6TPG-14	Western Design Center (WDC)	Interface - Specialised Asynch Communication Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	497In Stock	$9.38 $7.19 $6.64 $6.04 View $5.75 $5.58 $5.51 $5.44	Min.: 1 Mult.: 1		Interface - Specialized		Asynchronous Communications Interface Adapter		Through Hole	PDIP-28
	I/O Controller Interface IC Peripheral Interface Adapter W65C21S6TPLG-14 Western Design Center (WDC) 1: $12.17 38In Stock	Mfr. Part No. W65C21S6TPLG-14 Mouser Part No 955-W65C21S6TPLG-14	Western Design Center (WDC)	I/O Controller Interface IC Peripheral Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	38In Stock	$12.17 $9.44 $8.74 $7.98 View $7.62 $7.41 $7.21 Quote	Min.: 1 Mult.: 1		I/O Controller Interface IC				SMD/SMT	PLCC-44
	Interface - Specialised Asynch Communication Interface Adapter W65C51N6TPLG-14 Western Design Center (WDC) 1: $10.12 53In Stock	Mfr. Part No. W65C51N6TPLG-14 Mouser Part No 955-W65C51N6TPLG-14	Western Design Center (WDC)	Interface - Specialised Asynch Communication Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	53In Stock	$10.12 $7.81 $7.22 $6.57 View $6.09 $5.90 $5.62	Min.: 1 Mult.: 1		Interface - Specialized		Asynchronous Communications Interface Adapter		SMD/SMT	PLCC-28
	I/O Controller Interface IC Peripheral Interface Adapter W65C21N6TPLG-14 Western Design Center (WDC) 1: $12.17 Non-Stocked	Mfr. Part No. W65C21N6TPLG-14 Mouser Part No 955-W65C21N6TPLG-14	Western Design Center (WDC)	I/O Controller Interface IC Peripheral Interface Adapter Learn More about Western Design Center (WDC) wdc interface adapter	Datasheet	Non-Stocked	$12.17 $9.44 $8.74 $7.98 View $7.62 $7.41 $7.21 Quote	Min.: 1 Mult.: 1		I/O Controller Interface IC				SMD/SMT	PLCC-44