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SN74121D, in 3D

SN74121D

Texas Instruments

0℃~+70℃ 16mA 2 4.75V~5.25V 400uA 45ns 7400 Monostable SOIC-14 Monostable Multivibrators ROHS

Extended
DatasheetJLCPCBLCSCti/SN74121D
Category
Monostable Multivibrators
Package
SOIC-14
Pins
14

Overview

The SN74121D is a monostable Multivibrator made by Texas Instruments in a SOIC-14 package with 14 pins. 0℃~+70℃ 16mA 2 4.75V~5.25V 400uA 45ns 7400 Monostable SOIC-14 Monostable Multivibrators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74121DE4, from EasyEDA) and its footprint (Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, from KiCad's library), ready for a KiCad board. 282 are in stock at JLCPCB (part C1522774).

Symbol

VCC14NC13NC12R_EXT/C_EXT11C_EXT10R_INT9NC8GND7Q6B5A24A13NC2Q#1
EasyEDA_Cloud:SN74121DE4From EasyEDA

Footprint

1234567891011121314
Package_SO:SOIC-14_3.9x8.7mm_P1.27mmFrom KiCad's library

Parameters

9
Current - Output High(IOH)
400uA
Current - Output Low(IOL)
16mA
Function
Adjustable pulse width
Logic Family
7400
Logic Type
Monostable
Number Of Channels
2
Operating Temperature
0℃~+70℃
Propagation Delay
45ns
Voltage - Supply
4.75V~5.25V

Order codes

1

Pinout

14
The pins of the SN74121D
PinNameType
1Q#Unspecified
2NCUnspecified
3A1Unspecified
4A2Unspecified
5BUnspecified
6QUnspecified
7GNDUnspecified
8NCUnspecified
9R_INTUnspecified
10C_EXTUnspecified
11R_EXT/C_EXTUnspecified
12NCUnspecified
13NCUnspecified
14VCCUnspecified

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Questions

Is there a KiCad symbol and footprint for the SN74121D?

Yes. The symbol is EasyEDA_Cloud:SN74121DE4 and the footprint Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN74121D?

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

Where is the SN74121D datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the SN74121D?

JLCPCB lists it as part C1522774, with 282 in stock; the sellers' links on this page open their listings.

What can replace the SN74121D?

Parts like it in the library: the CD4047BM96 by Texas Instruments, the HEF4047BT by Nexperia, the COS4047B by COSINE and the SN74LS122D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8