There are no models available for this part yet.
Overview of 54LS21DMQB by National Semiconductor Corporation
Note: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
- Distributor Offerings: ( 2 listings )
- Number of FFF Equivalents: ( 10 crosses )
- CAD Models: ( Request Part )
- Number of Functional Equivalents: ( 10 crosses )
- Part Data Attributes ( Available )
- Reference Designs: ( Not Available )
Price & Stock for 54LS21DMQB by National Semiconductor Corporation
| Part # | Manufacturer | Description | Stock | Price | Buy | ||
|---|---|---|---|---|---|---|---|
| Quest Components | Logic Circuit, Dual 4-Input AND, LS-TTL, 14 Pin, Ceramic, DIP | 53 |
|
$1.2797 / $2.3268 | Buy Now | ||
| Rochester Electronics | 54LS21 - AND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14 ' RoHS: Not Compliant Status: Obsolete Min Qty: 1 | 82 |
|
$0.5318 / $0.6256 | Buy Now |
CAD Models for 54LS21DMQB by National Semiconductor Corporation
Part Data Attributes for 54LS21DMQB by National Semiconductor Corporation
|
|
|
|---|---|
|
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 |
|---|---|---|---|
| M38510/31003BCC | AND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14, CERAMIC, DIP-14 | SRI International Sarnoff | 54LS21DMQB vs M38510/31003BCC |
| M38510/31003BCA | IC LS SERIES, DUAL 4-INPUT AND GATE, CDIP14, CERAMIC, DIP-14, Gate | National Semiconductor Corporation | 54LS21DMQB vs M38510/31003BCA |
| SN74ALS21NP1 | IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,PLASTIC | Texas Instruments | 54LS21DMQB vs SN74ALS21NP1 |
| 74LS21DCQM | AND Gate, TTL, CDIP14, | Fairchild Semiconductor Corporation | 54LS21DMQB vs 74LS21DCQM |
| SN74ALS21J | IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,CERAMIC | Texas Instruments | 54LS21DMQB vs SN74ALS21J |
| SN54ALS21J | IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,CERAMIC | Freescale Semiconductor | 54LS21DMQB vs SN54ALS21J |
| SN74ALS21N | IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,PLASTIC | Freescale Semiconductor | 54LS21DMQB vs SN74ALS21N |
| 54LS21DMQB | LS SERIES, DUAL 4-INPUT AND GATE, CDIP14, CERAMIC, DIP-14 | Texas Instruments | 54LS21DMQB vs 54LS21DMQB |
| SN74ALS21N | IC,LOGIC GATE,DUAL 4-INPUT AND,ALS-TTL,DIP,14PIN,PLASTIC | Texas Instruments | 54LS21DMQB vs SN74ALS21N |
| M38510/31003BCA | AND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14, CERAMIC, DIP-14 | Rochester Electronics LLC | 54LS21DMQB vs M38510/31003BCA |