Datasheets
54LS21DMQB by:

AND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14

Part Details for 54LS21DMQB by National Semiconductor Corporation

Overview of 54LS21DMQB by National Semiconductor Corporation

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Price & Stock for 54LS21DMQB

Part # Distributor Description Stock Price Buy
Quest Components Logic Circuit, Dual 4-Input AND, LS-TTL, 14 Pin, Ceramic, DIP 53
  • 1 $2.3268
  • 15 $1.4543
  • 53 $1.2797
$1.2797 / $2.3268 Buy Now

Part Details for 54LS21DMQB

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54LS21DMQB Part Data Attributes

54LS21DMQB National Semiconductor Corporation
Buy Now Datasheet
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54LS21DMQB National Semiconductor Corporation AND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14
Part Life Cycle Code Obsolete
Ihs Manufacturer NATIONAL SEMICONDUCTOR CORP
Package Description CERAMIC, DIP-14
Reach Compliance Code unknown
Family LS
JESD-30 Code R-GDIP-T14
Length 19.43 mm
Load Capacitance (CL) 15 pF
Logic IC Type AND GATE
Max I(ol) 0.004 A
Number of Functions 2
Number of Inputs 4
Number of Terminals 14
Operating Temperature-Max 125 °C
Operating Temperature-Min -55 °C
Package Body Material CERAMIC, GLASS-SEALED
Package Code DIP
Package Equivalence Code DIP14,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Power Supply Current-Max (ICC) 4.4 mA
Prop. Delay@Nom-Sup 18 ns
Propagation Delay (tpd) 11 ns
Qualification Status Not Qualified
Schmitt Trigger NO
Screening Level 38535Q/M;38534H;883B
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 MILITARY
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Width 7.62 mm

Alternate Parts for 54LS21DMQB

This table gives cross-reference parts and alternative options found for 54LS21DMQB. 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 54LS21DMQB, 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
SNJ54LS21J Military, 2-ch, 4-input, 4.5-V to 5.5-V 16-mA drive strength bipolar AND gate 14-CDIP -55 to 125 Texas Instruments 54LS21DMQB vs SNJ54LS21J
SNJ54ALS21J AND Gate Rochester Electronics LLC 54LS21DMQB vs SNJ54ALS21J
M38510/31003BCA Military, 2-ch, 4-input, 4.5-V to 5.5-V 16-mA drive strength bipolar AND gate 14-CDIP -55 to 125 Texas Instruments 54LS21DMQB vs M38510/31003BCA
SN54ALS21J IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,CERAMIC Freescale Semiconductor 54LS21DMQB vs SN54ALS21J
74LS21DCQM AND Gate, TTL, CDIP14, Fairchild Semiconductor Corporation 54LS21DMQB vs 74LS21DCQM
SN74ALS21NP3 IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,PLASTIC Texas Instruments 54LS21DMQB vs SN74ALS21NP3
SN74ALS21N-10 ALS SERIES, DUAL 4-INPUT AND GATE, PDIP14 Texas Instruments 54LS21DMQB vs SN74ALS21N-10
SN74ALS21NP1 IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,PLASTIC Texas Instruments 54LS21DMQB vs SN74ALS21NP1
SN74ALS21N AND Gate, TTL, PDIP14 Motorola Semiconductor Products 54LS21DMQB vs SN74ALS21N
SN74ALS21N IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,PLASTIC Texas Instruments 54LS21DMQB vs SN74ALS21N
Part Number Description Manufacturer Compare
SN54ALS21FH-00 ALS SERIES, DUAL 4-INPUT AND GATE, CQCC20 Texas Instruments 54LS21DMQB vs SN54ALS21FH-00
SN54ALS21J AND Gate Rochester Electronics LLC 54LS21DMQB vs SN54ALS21J
DV74ALS21AD AND Gate, ALS Series, 2-Func, 4-Input, TTL, PDSO14, PLASTIC, SOP-14 avg Semiconductors 54LS21DMQB vs DV74ALS21AD
SN54ALS21AJ Military, 2-ch, 4-input, 4.5-V to 5.5-V ultra-high-speed (4 ns) bipolar AND gate 14-CDIP -55 to 125 Texas Instruments 54LS21DMQB vs SN54ALS21AJ
SNJ54ALS21AFK Military, 2-ch, 4-input, 4.5-V to 5.5-V ultra-high-speed (4 ns) bipolar AND gate 20-LCCC -55 to 125 Texas Instruments 54LS21DMQB vs SNJ54ALS21AFK
SN54ALS21J-00 ALS SERIES, DUAL 4-INPUT AND GATE, CDIP14 Texas Instruments 54LS21DMQB vs SN54ALS21J-00
SNJ54ALS21FK AND Gate Rochester Electronics LLC 54LS21DMQB vs SNJ54ALS21FK
SN74ALS21AD 2-ch, 4-input, 4.5-V to 5.5-V ultra-high-speed (4 ns) bipolar AND gate 14-SOIC 0 to 70 Texas Instruments 54LS21DMQB vs SN74ALS21AD
DM74ALS21AMX AND Gate, ALS Series, 2-Func, 4-Input, TTL, PDSO14, 0.150 INCH, MS-012, SOIC-14 Fairchild Semiconductor Corporation 54LS21DMQB vs DM74ALS21AMX
SN74ALS21N-10 ALS SERIES, DUAL 4-INPUT AND GATE, PDIP14 Texas Instruments 54LS21DMQB vs SN74ALS21N-10

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