Manufacturer

FAIRCHILD SEMICONDUCTOR CORP

Part Number	Manufacturer	Price	Number of Bits	Output	Output Function	Voltage - Supply	Current - Output High, Low	Max Propagation Delay @ V, Max CL	Current - Quiescent	Operating Temperature	Mounting Type	Package / Case
74F521MSA FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	1mA, 20mA	10ns @ 5V, 50pF	-	0?C ~ 70?C	Surface Mount	20-SSOP (0.209", 5.30mm Width)
74AC521SC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	2 V ~ 6 V	24mA, 24mA	8.5ns @ 5V, 50pF	4?A	-40?C ~ 85?C	Surface Mount	20-SOIC (0.295", 7.50mm Width)
74F524PC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active High	A<B, A=B, A>B	4.5 V ~ 5.5 V	3mA, 24mA	25ns @ 5V, 50pF	-	0?C ~ 70?C	Through Hole	20-DIP (0.300", 7.62mm)
DM74ALS521WM FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	2.6mA, 24mA	20ns @ 5V, 50pF	-	0?C ~ 70?C	Surface Mount	20-SOIC (0.295", 7.50mm Width)
74ACT520SC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	24mA, 24mA	10ns @ 5V, 50pF	4?A	-40?C ~ 85?C	Surface Mount	20-SOIC (0.295", 7.50mm Width)
74F521SC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	1mA, 20mA	10ns @ 5V, 50pF	-	0?C ~ 70?C	Surface Mount	20-SOIC (0.295", 7.50mm Width)
74AC521SJ FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	2 V ~ 6 V	24mA, 24mA	8.5ns @ 5V, 50pF	4?A	-40?C ~ 85?C	Surface Mount	20-SOIC (0.209", 5.30mm Width)
DM74LS85N FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	4	Active High	A<B, A=B, A>B	4.75 V ~ 5.25 V	400?A, 8mA	42ns @ 5V, 50pF	-	0?C ~ 70?C	Through Hole	16-DIP (0.300", 7.62mm)
74ACT520PC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	24mA, 24mA	10ns @ 5V, 50pF	4?A	-40?C ~ 85?C	Through Hole	20-DIP (0.300", 7.62mm)
DM74ALS521N FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	2.6mA, 24mA	20ns @ 5V, 50pF	-	0?C ~ 70?C	Through Hole	20-DIP (0.300", 7.62mm)
74F524SC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active High	A<B, A=B, A>B	4.5 V ~ 5.5 V	3mA, 24mA	25ns @ 5V, 50pF	-	0?C ~ 70?C	Surface Mount	20-SOIC (0.295", 7.50mm Width)
74ACT521PC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	24mA, 24mA	10ns @ 5V, 50pF	4?A	-40?C ~ 85?C	Through Hole	20-DIP (0.300", 7.62mm)
DM74ALS520WM FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	2.6mA, 24mA	20ns @ 5V, 50pF	-	0?C ~ 70?C	Surface Mount	20-SOIC (0.295", 7.50mm Width)
74ACT521SJ FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	24mA, 24mA	10ns @ 5V, 50pF	4?A	-40?C ~ 85?C	Surface Mount	20-SOIC (0.209", 5.30mm Width)
74F521PC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	1mA, 20mA	10ns @ 5V, 50pF	-	0?C ~ 70?C	Through Hole	20-DIP (0.300", 7.62mm)
74AC521PC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	2 V ~ 6 V	24mA, 24mA	8.5ns @ 5V, 50pF	4?A	-40?C ~ 85?C	Through Hole	20-DIP (0.300", 7.62mm)
MM74C85N FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	4	Active Low	A<B, A=B, A>B	3 V ~ 15 V	15mA, 16mA	300ns @ 10V, 50pF	-	-55?C ~ 125?C	Through Hole	16-DIP (0.300", 7.62mm)
MM74HC688N FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	2 V ~ 6 V	5.2mA, 5.2mA	30ns @ 6V, 50pF	8?A	-40?C ~ 85?C	Through Hole	20-DIP (0.300", 7.62mm)
DM74ALS520N FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	2.6mA, 24mA	20ns @ 5V, 50pF	-	0?C ~ 70?C	Through Hole	20-DIP (0.300", 7.62mm)
74ACT521SC FAIRCHILD SEMICONDUCTOR CORP	FAIRCHILD SEMICONDUCTOR CORP	-	8	Active Low	A=B	4.5 V ~ 5.5 V	24mA, 24mA	10ns @ 5V, 50pF	4?A	-40?C ~ 85?C	Surface Mount	20-SOIC (0.295", 7.50mm Width)