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8 bit Logic Comparators

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Comparator Type	Number of Bits	Logic Function	Output Type	Package/Case	Propagation Delay Time	Supply Voltage - Min	Supply Voltage - Max	Supply Current - Max	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Packaging
Logic Comparators Octal Binary/BCD Idy Comparators w/Enabl SN74ALS520NSR Texas Instruments 1: $3.06 1,067In Stock	Mfr. Part No. SN74ALS520NSR Mouser Part No 595-SN74ALS520NSR	Texas Instruments	Logic Comparators Octal Binary/BCD Idy Comparators w/Enabl	Datasheet	1,067In Stock	Cut Tape $3.06 $2.92 $2.85 $2.74 Reel $2.41 View $2.60 $2.58 $2.43 $2.40 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Identity	8 bit	A = B	Totem-Pole	SOIC-20	12 ns, 20 ns, 22 ns	4.5 V	5.5 V	19 mA	0 C	+ 70 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators Octal binary or BCD Magnitude Comparator SN74LS682NSR Texas Instruments 1: $2.95 797In Stock	Mfr. Part No. SN74LS682NSR Mouser Part No 595-SN74LS682NSR	Texas Instruments	Logic Comparators Octal binary or BCD Magnitude Comparator	Datasheet	797In Stock	Cut Tape $2.95 $2.83 $2.76 $2.69 Reel $2.38 View $2.56 $2.54 $2.39 $2.37 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Magnitude	8 bit	A = B, A > B	Totem-Pole	SOIC-20	25 ns, 30 ns	4.85 V	5.25 V	70 mA	0 C	+ 70 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 8-Bit Identity Comparator 74FCT521CTSOG8 Renesas Electronics 1: $3.39 1,123In Stock	Mfr. Part No. 74FCT521CTSOG8 Mouser Part No 972-74FCT521CTSOG8	Renesas Electronics	Logic Comparators 8-Bit Identity Comparator	Datasheet	1,123In Stock	Cut Tape $3.39 $2.53 $2.31 $2.07 View Reel $1.77 $1.96 $1.92 $1.77 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Identity	8 bit	A = B	Active Low	SOIC-20	4.1 ns, 4.5 ns	4.75 V	5.25 V	4.5 mA	- 40 C	+ 85 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators High Speed CMOS 8-Bi t Magnitude ALT 595 ALT 595-CD74HCT688E CD74HCT688EE4 Texas Instruments 1: $1.14 597In Stock	Mfr. Part No. CD74HCT688EE4 Mouser Part No 595-CD74HCT688EE4	Texas Instruments	Logic Comparators High Speed CMOS 8-Bi t Magnitude ALT 595 ALT 595-CD74HCT688E	Datasheet	597In Stock	$1.14 $0.819 $0.736 $0.647 View $0.605 $0.58 $0.489 $0.487 $0.479	Min.: 1 Mult.: 1	Magnitude/Identity	8 bit	A = B	Active Low	PDIP-20	9 ns, 14 ns	4.5 V	5.5 V	8 uA	- 55 C	+ 125 C	Through Hole	Tube
Logic Comparators 8-Bit Identity Compa rators ALT 595-SN74 ALT 595-SN74HC688DWR SN74HC688DWRE4 Texas Instruments 1: $1.08 1,327In Stock	Mfr. Part No. SN74HC688DWRE4 Mouser Part No 595-SN74HC688DWRE4	Texas Instruments	Logic Comparators 8-Bit Identity Compa rators ALT 595-SN74 ALT 595-SN74HC688DWR	Datasheet	1,327In Stock	Cut Tape $1.08 $0.782 $0.704 $0.619 Reel $0.513 View $0.579 $0.554 $0.537 $0.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Identity	8 bit	A = B	Active Low	SOIC-20	26 ns, 45 ns	2 V	6 V	80 uA	- 40 C	+ 85 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators Octal Binary/BCD Idy Comparators w/Enabl SN74F521NSR Texas Instruments 1: $1.14 1,949In Stock	Mfr. Part No. SN74F521NSR Mouser Part No 595-SN74F521NSR	Texas Instruments	Logic Comparators Octal Binary/BCD Idy Comparators w/Enabl	Datasheet	1,949In Stock	Cut Tape $1.14 $0.825 $0.746 $0.659 Reel $0.543 View $0.618 $0.593 $0.572 $0.532 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Identity	8 bit	A = B	Active Low	SOIC-20	4.6 ns, 6.1 ns, 6.6 ns	4.5 V	5.5 V	32 mA	0 C	+ 70 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 8-Bit Id Comparators W/open-Collector Ou SN74ALS521N Texas Instruments 1: $3.50 540In Stock	Mfr. Part No. SN74ALS521N Mouser Part No 595-SN74ALS521N	Texas Instruments	Logic Comparators 8-Bit Id Comparators W/open-Collector Ou	Datasheet	540In Stock	$3.50 $2.28 $2.00 $1.79	Min.: 1 Mult.: 1	Identity	8 bit	A = B	Totem-Pole	PDIP-20	12 ns, 20 ns, 22 ns	4.5 V	5.5 V	19 mA	0 C	+ 70 C	Through Hole	Tube
Logic Comparators 8-Bit Magnitude/Id C omparator ALT 595-S ALT 595-SN74LS688N SN74LS688NE4 Texas Instruments 1: $4.88 314In Stock	Mfr. Part No. SN74LS688NE4 Mouser Part No 595-SN74LS688NE4	Texas Instruments	Logic Comparators 8-Bit Magnitude/Id C omparator ALT 595-S ALT 595-SN74LS688N	Datasheet	314In Stock	$4.88 $3.68 $3.37 $3.04 $2.25	Min.: 1 Mult.: 1	Identity	8 bit	A = B	Totem-Pole	PDIP-20	18 ns, 23 ns	4.85 V	5.25 V	65 mA	0 C	+ 70 C	Through Hole	Tube
Logic Comparators Octal Binary/BCD Idy Comparators w/Enabl ALT 595-SN74ALS518DW SN74ALS518DWE4 Texas Instruments 1: $13.53 22In Stock	Mfr. Part No. SN74ALS518DWE4 Mouser Part No 595-SN74ALS518DWE4	Texas Instruments	Logic Comparators Octal Binary/BCD Idy Comparators w/Enabl ALT 595-SN74ALS518DW	Datasheet	22In Stock	$13.53 $10.59 $9.86 $9.06 View $8.97 $8.44 $8.25 Quote	Min.: 1 Mult.: 1	Identity	8 bit	A = B	Open Collector	SOIC-20	15 ns, 33 ns	4.5 V	5.5 V	17 mA	0 C	+ 70 C	SMD/SMT	Tube
Logic Comparators 8-Bit Identity Comparator 74FCT521ATSOG8 Renesas Electronics 1: $3.39 771In Stock	Mfr. Part No. 74FCT521ATSOG8 Mouser Part No 972-74FCT521ATSOG8	Renesas Electronics	Logic Comparators 8-Bit Identity Comparator	Datasheet	771In Stock	Cut Tape $3.39 $2.53 $2.31 $2.07 Reel $1.82 View $1.96 $1.92 $1.79 $1.77 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Identity	8 bit	A = B	Active Low	SOIC-20	6 ns, 7.2 ns	4.75 V	5.25 V	4.5 mA	- 40 C	+ 85 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators Octal binary or BCD Magnitude Comparator SN74LS684NSR Texas Instruments 1: $11.89 1,059In Stock	Mfr. Part No. SN74LS684NSR Mouser Part No 595-SN74LS684NSR	Texas Instruments	Logic Comparators Octal binary or BCD Magnitude Comparator	Datasheet	1,059In Stock	Cut Tape $11.89 $9.31 $8.66 $7.96 View Reel $7.24 $7.88 $7.42 $7.25 $7.24 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Magnitude	8 bit	A = B, A > B	Totem-Pole	SOIC-20	25 ns, 30 ns	4.85 V	5.25 V	65 mA	0 C	+ 70 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators High Speed CMOS 8-Bi t Magnitude A 595-C A 595-CD74HC688M CD74HC688M96 Texas Instruments 1: $0.88 4,790In Stock	Mfr. Part No. CD74HC688M96 Mouser Part No 595-CD74HC688M96	Texas Instruments	Logic Comparators High Speed CMOS 8-Bi t Magnitude A 595-C A 595-CD74HC688M	Datasheet	4,790In Stock	Cut Tape $0.88 $0.745 $0.743 $0.719 Reel $0.492 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Magnitude/Identity	8 bit	A = B	Active Low	SOIC-20	20 ns, 29 ns	2 V	6 V	8 uA	- 55 C	+ 125 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators High Speed CMOS 8-Bi t Magnitude CD74HC688NSR Texas Instruments 1: $2.10 1,737In Stock	Mfr. Part No. CD74HC688NSR Mouser Part No 595-CD74HC688NSR	Texas Instruments	Logic Comparators High Speed CMOS 8-Bi t Magnitude	Datasheet	1,737In Stock	Cut Tape $2.10 $1.56 $1.42 $1.27 Reel $1.06 View $1.20 $1.19 $1.17 $1.04 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Magnitude/Identity	8 bit	A = B	Active Low	SOIC-20	20 ns, 29 ns	2 V	6 V	8 uA	- 55 C	+ 125 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators High Speed CMOS 8-Bi t Magnitude A 595-C A 595-CD74HC688PWT CD74HC688PWR Texas Instruments 1: $1.33 2,367In Stock	Mfr. Part No. CD74HC688PWR Mouser Part No 595-CD74HC688PWR	Texas Instruments	Logic Comparators High Speed CMOS 8-Bi t Magnitude A 595-C A 595-CD74HC688PWT	Datasheet	2,367In Stock	Cut Tape $1.33 $0.963 $0.873 $0.773 Reel $0.653 View $0.726 $0.707 $0.698 $0.636 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Magnitude/Identity	8 bit	A = B	Active Low	TSSOP-20	20 ns, 29 ns	2 V	6 V	8 uA	- 55 C	+ 125 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 8-Bit Id Comparators W/open-Collector Ou A 595-SN74ALS521DW SN74ALS521DWR Texas Instruments 1: $2.16 1,009In Stock	Mfr. Part No. SN74ALS521DWR Mouser Part No 595-SN74ALS521DWR	Texas Instruments	Logic Comparators 8-Bit Id Comparators W/open-Collector Ou A 595-SN74ALS521DW	Datasheet	1,009In Stock	Cut Tape $2.16 $2.02 $1.84 Reel $1.53 $1.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Identity	8 bit	A = B	Totem-Pole	SOIC-20	12 ns, 20 ns, 22 ns	4.5 V	5.5 V	19 mA	0 C	+ 70 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 8-Bit Identity Compa rators A 595-SN74HC A 595-SN74HC688DW SN74HC688DWR Texas Instruments 1: $1.04 3,334In Stock	Mfr. Part No. SN74HC688DWR Mouser Part No 595-SN74HC688DWR	Texas Instruments	Logic Comparators 8-Bit Identity Compa rators A 595-SN74HC A 595-SN74HC688DW	Datasheet	3,334In Stock	Cut Tape $1.04 $0.749 $0.677 $0.597 Reel $0.50 View $0.559 $0.537 $0.487 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Identity	8 bit	A = B	Active Low	SOIC-20	26 ns, 45 ns	2 V	6 V	80 uA	- 40 C	+ 85 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 8bit Identity A 595- SN74HC688PWT A 595- A 595-SN74HC688PWT SN74HC688PWR Texas Instruments 1: $0.96 12,001In Stock	Mfr. Part No. SN74HC688PWR Mouser Part No 595-SN74HC688PWR	Texas Instruments	Logic Comparators 8bit Identity A 595- SN74HC688PWT A 595- A 595-SN74HC688PWT	Datasheet	12,001In Stock	Cut Tape $0.96 $0.69 $0.623 $0.549 Reel $0.459 View $0.513 $0.492 $0.491 $0.447 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Identity	8 bit	A = B	Active Low	TSSOP-20	26 ns, 45 ns	2 V	6 V	1.1 mA	- 40 C	+ 85 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 8-Bit Magnitude/Id C omparator A 595-SN7 A 595-SN74LS688DW SN74LS688DWR Texas Instruments 1: $2.79 808In Stock	Mfr. Part No. SN74LS688DWR Mouser Part No 595-SN74LS688DWR	Texas Instruments	Logic Comparators 8-Bit Magnitude/Id C omparator A 595-SN7 A 595-SN74LS688DW	Datasheet	808In Stock	Cut Tape $2.79 $2.57 $2.37 Reel $1.78 $1.75 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Identity	8 bit	A = B	Totem-Pole	SOIC-20	18 ns, 23 ns	4.85 V	5.25 V	65 mA	0 C	+ 70 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 8bit Identity SN74HC688N Texas Instruments 1: $1.62 5,567In Stock	Mfr. Part No. SN74HC688N Mouser Part No 595-SN74HC688N	Texas Instruments	Logic Comparators 8bit Identity	Datasheet	5,567In Stock	$1.62 $1.11 $1.04 $0.961 View $0.901 $0.869 $0.858 $0.832 $0.777	Min.: 1 Mult.: 1	Identity	8 bit	A = B	Active Low	PDIP-20	26 ns, 45 ns	2 V	6 V	1.1 mA	- 40 C	+ 85 C	Through Hole	Tube
Logic Comparators 74HC688D/SOT163/SO20 74HC688D,653 Nexperia 1: $0.71 9,647In Stock 28,000On Order	Mfr. Part No. 74HC688D,653 Mouser Part No 771-74HC688D-T	Nexperia	Logic Comparators 74HC688D/SOT163/SO20	Datasheet	9,647In Stock 28,000On Order On Order Ship Dates Mfr. No: 74HC688D,653 Stock: 9,647 Can Dispatch Immediately On Order: 12,000 Expected 12/10/2026 16,000 Expected 21/12/2026 Factory Lead Time: 22 Weeks	Cut Tape $0.71 $0.502 $0.45 $0.393 Reel $0.323 View $0.366 $0.35 $0.34 $0.314 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Magnitude	8 bit	A = B	Active Low	SOIC-20	8 ns, 16 ns	2 V	6 V	8 uA	- 40 C	+ 125 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 74HC688PW/SOT360/TSSOP20 74HC688PW,118 Nexperia 1: $0.64 13,981In Stock 20,000On Order	Mfr. Part No. 74HC688PW,118 Mouser Part No 771-HC688PW118	Nexperia	Logic Comparators 74HC688PW/SOT360/TSSOP20	Datasheet	13,981In Stock 20,000On Order On Order Ship Dates Mfr. No: 74HC688PW,118 Stock: 13,981 Can Dispatch Immediately On Order: 17,500 Expected 30/11/2026 2,500 Expected 08/02/2027 Factory Lead Time: 20 Weeks	Cut Tape $0.64 $0.456 $0.41 $0.358 Reel $0.301 View $0.343 $0.328 $0.318 $0.293 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Magnitude	8 bit	A = B	Active Low	TSSOP-20	8 ns, 16 ns	2 V	6 V	8 uA	- 40 C	+ 125 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators 8-Bit Identity Comparator 74FCT521ATQG8 Renesas Electronics 1: $3.39 3,575In Stock	Mfr. Part No. 74FCT521ATQG8 Mouser Part No 972-74FCT521ATQG8	Renesas Electronics	Logic Comparators 8-Bit Identity Comparator	Datasheet	3,575In Stock	Cut Tape $3.39 $2.53 $2.31 $2.07 View Reel $1.54 $1.96 $1.92 $1.82 $1.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Identity	8 bit	A = B	Active Low	QSOP-20	7.2 ns	4.75 V	5.25 V	4.5 mA	- 40 C	+ 85 C	SMD/SMT	Reel, Cut Tape, MouseReel
Logic Comparators High Speed CMOS 8-Bi t Magnitude CD74HC688E Texas Instruments 1: $1.99 471In Stock	Mfr. Part No. CD74HC688E Mouser Part No 595-CD74HC688E	Texas Instruments	Logic Comparators High Speed CMOS 8-Bi t Magnitude	Datasheet	471In Stock	$1.99 $1.37 $1.28 $1.19 View $1.12 $1.08 $1.04 $1.01 $0.992	Min.: 1 Mult.: 1	Magnitude/Identity	8 bit	A = B	Active Low	PDIP-20	20 ns, 29 ns	2 V	6 V	8 uA	- 55 C	+ 125 C	Through Hole	Tube
Logic Comparators 8-Bit Magnitude CD74HCT688E Texas Instruments 1: $1.08 1,122In Stock	Mfr. Part No. CD74HCT688E Mouser Part No 595-CD74HCT688E	Texas Instruments	Logic Comparators 8-Bit Magnitude	Datasheet	1,122In Stock	$1.08 $0.722 $0.673 $0.622 View $0.58 $0.558 $0.533 $0.514 $0.503	Min.: 1 Mult.: 1	Magnitude/Identity	8 bit	A = B	Active Low	PDIP-20	9 ns, 14 ns	4.5 V	5.5 V	8 uA	- 55 C	+ 125 C	Through Hole	Tube
Logic Comparators High Speed CMOS 8-Bi t Magnitude A 595-C A 595-CD74HCT688M CD74HCT688M96 Texas Instruments 1: $0.78 3,740In Stock	Mfr. Part No. CD74HCT688M96 Mouser Part No 595-CD74HCT688M96	Texas Instruments	Logic Comparators High Speed CMOS 8-Bi t Magnitude A 595-C A 595-CD74HCT688M	Datasheet	3,740In Stock	Cut Tape $0.78 $0.554 $0.498 $0.437 Reel $0.363 View $0.408 $0.39 $0.386 $0.353 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Magnitude/Identity	8 bit	A = B	Active Low	SOIC-20	9 ns, 14 ns	4.5 V	5.5 V	8 uA	- 55 C	+ 125 C	SMD/SMT	Reel, Cut Tape, MouseReel

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