Datasheets
SN74ALS521N by:

8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-PDIP 0 to 70

Part Details for SN74ALS521N by Texas Instruments

Overview of SN74ALS521N by Texas Instruments

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Price & Stock for SN74ALS521N

Part # Distributor Description Stock Price Buy
DISTI # 49X0960
Newark Comparator Ics 8-Bit Id Comparators W/Open-Collector Out Rohs Compliant: Yes |TEXAS INSTRUMENTS SN74ALS521N Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk 0
Buy Now
DISTI # 2156-SN74ALS521N-ND
DigiKey IC COMPARATOR IDENTITY 8B 20DIP Min Qty: 1 Lead time: 12 Weeks Container: Bulk MARKETPLACE PRODUCT 18402
In Stock
  • 245 $1.2300
$1.2300 Buy Now
DISTI # 296-33743-5-ND
DigiKey IC COMPARATOR IDENTITY 8B 20DIP Min Qty: 1 Lead time: 12 Weeks Container: Tube 74
In Stock
  • 1 $2.5300
  • 20 $2.2695
  • 40 $2.1412
  • 100 $1.8243
  • 260 $1.7130
  • 500 $1.4988
  • 1,000 $1.2419
  • 2,500 $1.1563
  • 5,000 $1.1134
$1.1134 / $2.5300 Buy Now
DISTI # 595-SN74ALS521N
Mouser Electronics Logic Comparators 8-Bit Id Comparators W/open-Collector Out RoHS: Compliant 107
  • 1 $2.5300
  • 10 $2.1000
  • 100 $1.8700
  • 260 $1.6200
  • 500 $1.4300
  • 1,000 $1.2100
  • 2,500 $1.1400
  • 5,000 $1.1000
$1.1000 / $2.5300 Buy Now
Bristol Electronics   600
RFQ
Bristol Electronics   Min Qty: 4 40
  • 4 $1.5000
  • 15 $0.9750
$0.9750 / $1.5000 Buy Now
Bristol Electronics   5065
RFQ
Bristol Electronics   7
RFQ
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 3666
  • 1 $1.9688
  • 611 $0.9056
  • 1,105 $0.8269
$0.8269 / $1.9688 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 41
  • 1 $1.8000
  • 4 $1.4400
  • 15 $0.9000
$0.9000 / $1.8000 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 32
  • 1 $2.0000
  • 4 $1.6000
  • 14 $1.0000
$1.0000 / $2.0000 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 1093
  • 1 $2.2000
  • 183 $0.8800
  • 910 $0.7700
$0.7700 / $2.2000 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 21
  • 1 $2.7408
  • 3 $2.0556
  • 13 $1.7130
$1.7130 / $2.7408 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 480
  • 1 $3.1500
  • 191 $1.4569
  • 413 $1.2994
$1.2994 / $3.1500 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 389
  • 1 $3.1500
  • 88 $1.5750
  • 191 $1.4569
$1.4569 / $3.1500 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 177
  • 1 $3.1500
  • 39 $1.7325
  • 88 $1.5750
$1.5750 / $3.1500 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 532
  • 1 $4.5900
  • 83 $2.8305
  • 354 $2.5245
$2.5245 / $4.5900 Buy Now
Quest Components IDENTITY COMPARATOR, 20 Pin, Plastic, DIP 32
  • 1 $3.1500
  • 3 $2.3625
  • 12 $1.9688
$1.9688 / $3.1500 Buy Now
Rochester Electronics SN74ALS521 8-Bit Identity/Magnitude Comparators (P=Q) with Enable RoHS: Not Compliant Status: Active Min Qty: 1 18402
  • 1 $1.2400
  • 25 $1.2100
  • 100 $1.1600
  • 500 $1.1100
  • 1,000 $1.0500
$1.0500 / $1.2400 Buy Now
Ameya Holding Limited 8-Bit Comparators 5244
RFQ
Chip 1 Exchange INSTOCK 755
RFQ
Component Electronics, Inc IN STOCK SHIP TODAY 20
  • 1 $1.5400
  • 100 $1.1500
  • 1,000 $1.0000
$1.0000 / $1.5400 Buy Now

Part Details for SN74ALS521N

SN74ALS521N CAD Models

SN74ALS521N Part Data Attributes

SN74ALS521N Texas Instruments
Buy Now Datasheet
Compare Parts:
SN74ALS521N Texas Instruments 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-PDIP 0 to 70
Rohs Code No
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code DIP
Package Description ROHS COMPLIANT, PLASTIC, DIP-20
Pin Count 20
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Additional Feature WITH PULL-UP RESISTORS ON Q INPUTS; CASCADABLE
Family ALS
JESD-30 Code R-PDIP-T20
JESD-609 Code e4
Length 25.4 mm
Load Capacitance (CL) 50 pF
Logic IC Type IDENTITY COMPARATOR
Max I(ol) 0.024 A
Number of Bits 8
Number of Functions 8
Number of Terminals 20
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Characteristics 3-STATE
Output Polarity INVERTED
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP20,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Packing Method TUBE
Peak Reflow Temperature (Cel) NOT SPECIFIED
Power Supply Current-Max (ICC) 19 mA
Prop. Delay@Nom-Sup 22 ns
Propagation Delay (tpd) 20 ns
Qualification Status Not Qualified
Seated Height-Max 5.08 mm
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 4.5 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount NO
Technology TTL
Temperature Grade COMMERCIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Width 7.62 mm

Alternate Parts for SN74ALS521N

This table gives cross-reference parts and alternative options found for SN74ALS521N. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN74ALS521N, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Description Manufacturer Compare
DM54ALS521J ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 Texas Instruments SN74ALS521N vs DM54ALS521J
SN54ALS521J-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 Texas Instruments SN74ALS521N vs SN54ALS521J-00
DM74ALS521N Identity Comparator, ALS Series, 8-Bit, Inverted Output, TTL, PDIP20, 0.300 INCH, PLASTIC, MS-001, DIP-20 Fairchild Semiconductor Corporation SN74ALS521N vs DM74ALS521N
SN74ALS521N3 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20 Texas Instruments SN74ALS521N vs SN74ALS521N3
SN54ALS688J-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 Texas Instruments SN74ALS521N vs SN54ALS688J-00
SNJ54ALS688J-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 Texas Instruments SN74ALS521N vs SNJ54ALS688J-00
SN54ALS521J ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 Texas Instruments SN74ALS521N vs SN54ALS521J
SN74ALS688N 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-PDIP 0 to 70 Texas Instruments SN74ALS521N vs SN74ALS688N
SN74ALS688N-10 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20 Texas Instruments SN74ALS521N vs SN74ALS688N-10
SN54ALS688J 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-CDIP -55 to 125 Texas Instruments SN74ALS521N vs SN54ALS688J
Part Number Description Manufacturer Compare
SNJ54ALS688J-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 Texas Instruments SN74ALS521N vs SNJ54ALS688J-00
SN74ALS521N3 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20 Texas Instruments SN74ALS521N vs SN74ALS521N3
5962-88578012A 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-LCCC -55 to 125 Texas Instruments SN74ALS521N vs 5962-88578012A
SN54ALS688J-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 Texas Instruments SN74ALS521N vs SN54ALS688J-00
SN54ALS521J-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 Texas Instruments SN74ALS521N vs SN54ALS521J-00
SN54ALS688FH-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CQCC20 Texas Instruments SN74ALS521N vs SN54ALS688FH-00
SN74ALS688FN-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PQCC20 Texas Instruments SN74ALS521N vs SN74ALS688FN-00
SN74ALS688N-10 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20 Texas Instruments SN74ALS521N vs SN74ALS688N-10
SNJ54ALS689FH-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CQCC20 Texas Instruments SN74ALS521N vs SNJ54ALS689FH-00
SN74ALS689FN-00 ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PQCC20 Texas Instruments SN74ALS521N vs SN74ALS689FN-00

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