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National Semiconductor Corporation DM74LS491N BINARY COUNTER, LS SERIES, SYNCHRONOUS, POSITIVE EDGE TRIGGERED, 10-BIT, BIDIRECTIONAL, TTL, PDIP24
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
Quest Components	DM74LS491N		51			1 $15 10 $7.5 100 $6.5 1000 $6.5 10000 $6.5	Buy Now
	DM74LS491N		24			1 $15 10 $10 100 $10 1000 $10 10000 $10	Buy Now

DM74LS491N Datasheets (3)

Part	ECAD Model	Manufacturer	Description	Curated	Datasheet Type	PDF
DM74LS491N		National Semiconductor			Original	PDF
DM74LS491N		Unknown	Historical semiconductor price guide (US$ - 1998). From our catalog scanning project.		Historical	PDF
DM74LS491N/A+		Unknown	Historical semiconductor price guide (US$ - 1998). From our catalog scanning project.		Historical	PDF

DM74LS491N Datasheets Context Search

Catalog Datasheet	MFG & Type	Document Tags	PDF
74ls491 Abstract: 74ls491 timing diagram DM74LS491N 8332 prom C1995 DM54LS491 DM54LS491J DM74LS491J J24F N24C Text: DM54LS491 74LS491 10-Bit Counter General Description Features Benefits The ten-bit counter can count up count down set and load 2 LSB’s 2 MSB’s and 6 middle bits high or low as a group All operations are synchronous with the clock SET overrides LOAD COUNT and HOLD LOAD overrides COUNT	Original	DM54LS491 74LS491 10-Bit 24-pin 74ls491 timing diagram DM74LS491N 8332 prom C1995 DM54LS491J DM74LS491J J24F N24C	PDF
74ls491 Abstract: No abstract text available Text: July 1989 DM54LS491/74LS491 10-Bit Counter General Description Features/Benefits The ten-bit counter can count up, count down, set, and load 2 LSB’s, 2 MSB’s and 6 middle bits high or low as a group. All operations are synchronous with the clock. SET overrides LOAD, COUNT and HOLD. LOAD overrides COUNT.	OCR Scan	DM54LS491/74LS491 10-Bit 24-pin nputs59 74ls491	PDF
DM74LS491N Abstract: No abstract text available Text: LS491 S National Semiconductor DM54LS491/74LS491 10-Bit Counter General Description Features/Benefits The ten-bit counter can count up, count down, set, and load 2 LSB’s, 2 MSB’s and 6 middle bits high or low as a group. All operations are synchronous with the clock. SET over	OCR Scan	LS491 24-pin DM54LS491/74LS491 10-Bit 10-Blt DM74LS491N	PDF
74ls491 Abstract: 200II Text: LS491 531 National JuM Semiconductor DM54LS491/74LS491 10-Bit Counter General Description Features/Benefits The ten-bit counter can count up, count down, set, and load 2 LSB's, 2 MSB’s and 6 middle bits high or low as a group. All operations are synchronous with the clock. SET over	OCR Scan	DM54LS491/74LS491 10-Bit 24-pin 390ii 74ls491 200II	PDF
02D7 Abstract: No abstract text available Text: O T National æ æ Semiconductor DM54LS491/74LS491 10-Bit Counter General Description Features/Benefits The ten-bit counter can count up, count down, set, and load 2 LSB's, 2 MSB’s and 6 middle bits high or low as a group. All operations are synchronous with the clock. SET over	OCR Scan	DM54LS491/74LS491 10-Bit 24-pin LS491 02D7	PDF