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SN74LS273N on a board, in 3D

SN74LS273N

Texas Instruments

0℃~+70℃ 1 20ns 27mA 27ns@5V,15pF 4.75V~5.25V 400uA 40MHz 5ns 74LS Series 8 8mA D-Type Reset Rising Edge PDIP-20 Flip Flops ROHS

Extended
DatasheetJLCPCBLCSCti/SN74LS273N
Category
Flip Flops
Package
PDIP-20
Pins
20

Overview

The SN74LS273N is a flip Flop made by Texas Instruments in a PDIP-20 package with 20 pins. 0℃~+70℃ 1 20ns 27mA 27ns@5V,15pF 4.75V~5.25V 400uA 40MHz 5ns 74LS Series 8 8mA D-Type Reset Rising Edge PDIP-20 Flip Flops ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS273, from KiCad's library) and its footprint (Package_DIP:DIP-20_W7.62mm, from KiCad's library), ready for a KiCad board. 100 are in stock at JLCPCB (part C2879026).

Symbol

Mr1Q02D03D14Q15Q26D27D38Q39GND10Cp11Q412D413D514Q515Q616D617D718Q719VCC20
74xx:74LS273From KiCad's library

Footprint

1234567891011121314151617181920
Package_DIP:DIP-20_W7.62mmFrom KiCad's library

Parameters

16
Clock Frequency
40MHz
Current - Output High(IOH)
400uA
Current - Output Low(IOL)
8mA
Function
Reset
Hold Time
5ns
Number of Bits per Element
8
Number of Elements
1
Operating Temperature
0℃~+70℃
Propagation Delay
27ns@5V,15pF
Quiescent Current
27mA
Series
74LS Series
Setup Time
20ns
Synchronous/Asynchronous
Asynchronous
Trigger Type
Rising Edge
Type
D-Type
Voltage - Supply
4.75V~5.25V

Order codes

1

Pinout

20
The pins of the SN74LS273N
PinNameType
1MrInput
2Q0Output
3D0Input
4D1Input
5Q1Output
6Q2Output
7D2Input
8D3Input
9Q3Output
10GNDPower in
11CpInput
12Q4Output
13D4Input
14D5Input
15Q5Output
16Q6Output
17D6Input
18D7Input
19Q7Output
20VCCPower in

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Questions

Is there a KiCad symbol and footprint for the SN74LS273N?

Yes. The symbol is 74xx:74LS273 and the footprint Package_DIP:DIP-20_W7.62mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN74LS273N?

PDIP-20, with 20 pins. Its footprint is drawn on this page.

Where is the SN74LS273N datasheet?

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

Where can I order the SN74LS273N?

JLCPCB lists it as part C2879026, with 100 in stock; the sellers' links on this page open their listings.

What can replace the SN74LS273N?

Parts like it in the library: the SN74LS377N by Texas Instruments, the SN74HCT574N by Texas Instruments, the SN74HCT374N by Texas Instruments and the SN74HCT574PW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8