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DM74AS21N on a board, in 3D

DM74AS21N

onsemi

0℃~+70℃ 2 20mA 2V 2mA 4 4.5V~5.5V 500mV 6ns@5V,50pF 74AS Series 800mV AND Gate DIP-14 Logic Gates ROHS

Extended
DatasheetJLCPCBLCSConsemi/DM74AS21N
Category
Logic Gates
Package
DIP-14
Pins
14

Overview

The DM74AS21N is a logic Gate made by onsemi in a DIP-14 package with 14 pins. 0℃~+70℃ 2 20mA 2V 2mA 4 4.5V~5.5V 500mV 6ns@5V,50pF 74AS Series 800mV AND Gate DIP-14 Logic Gates ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:54LS21FMQB, from EasyEDA) and its footprint (Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C4471214).

Symbol

A11B12NC3C14D15Y16GND7Y28A29B210NC11C212D213VCC14
EasyEDA_Cloud:54LS21FMQBFrom EasyEDA

Footprint

1234567891011121314
Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPadsFrom KiCad's library

Parameters

12
Current - Output High(IOH)
2mA
Current - Output Low(IOL)
20mA
Input Logic Level - High
2V
Input Logic Level - Low
800mV
Inputs per Gates
4
Logic Type
AND Gate
Number of Gates
2
Operating Temperature
0℃~+70℃
Output Logic Level - Low
500mV
Propagation Delay
6ns@5V,50pF
Series
74AS Series
Voltage - Supply
4.5V~5.5V

Order codes

1

Pinout

14
The pins of the DM74AS21N
PinNameType
1A1Unspecified
2B1Unspecified
3NCUnspecified
4C1Unspecified
5D1Unspecified
6Y1Unspecified
7GNDUnspecified
8Y2Unspecified
9A2Unspecified
10B2Unspecified
11NCUnspecified
12C2Unspecified
13D2Unspecified
14VCCUnspecified

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[![DM74AS21N](https://pcbkit.io/embed/parts/onsemi/DM74AS21N.jpg?size=s)](https://pcbkit.io/parts/onsemi/DM74AS21N)

Questions

Is there a KiCad symbol and footprint for the DM74AS21N?

Yes. The symbol is EasyEDA_Cloud:54LS21FMQB and the footprint Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the DM74AS21N?

DIP-14, with 14 pins. Its footprint is drawn on this page.

Where is the DM74AS21N datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the DM74AS21N?

JLCPCB lists it as part C4471214, with 0 in stock; the sellers' links on this page open their listings.

What can replace the DM74AS21N?

Parts like it in the library: the CD4093BE by Texas Instruments, the CD4078BE by HGSEMI, the CD4093BE(XBLW) by XBLW and the CD4030BE by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8