Skip to the content
PCBKitNew board
SN74F540N on a board, in 3D

SN74F540N

Texas Instruments

0℃~+70℃ 1 15mA 4.5V~5.5V 64mA 74F 8 Output enable Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers

Extended
Category
Buffers, Drivers, Receivers, Transceivers
Package
DIP-20
Pins
5

Overview

The SN74F540N is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a DIP-20 package with 20 pins. 0℃~+70℃ 1 15mA 4.5V~5.5V 64mA 74F 8 Output enable Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers.

PCBKit's library has its KiCad symbol (74xx:74LS540, from KiCad's library) and its footprint (Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3754610).

Symbol

G11A02A13A24A35A46A57A68A79GND10Y711Y612Y513Y414Y315Y216Y117Y018G219VCC20
74xx:74LS540From KiCad's library

Footprint

1234567891011121314151617181920
Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPadsFrom KiCad's library

Parameters

10
Channel Type
Unidirectional
Current - Output High(IOH)
15mA
Current - Output Low(IOL)
64mA
Features
Output enable
Logic Family
74F
Number of Bits per Element
8
Number of Elements
1
Operating Temperature
0℃~+70℃
Voltage - Supply
4.5V~5.5V
output type
Tri-State

Order codes

1

Pinout

20
The pins of the SN74F540N
PinNameType
1G1Input
2A0Input
3A1Input
4A2Input
5A3Input
6A4Input
7A5Input
8A6Input
9A7Input
10GNDPower in
11Y7Tri-state
12Y6Tri-state
13Y5Tri-state
14Y4Tri-state
15Y3Tri-state
16Y2Tri-state
17Y1Tri-state
18Y0Tri-state
19G2Input
20VCCPower in

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/SN74F540N" title="SN74F540N in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/ti/SN74F540N.jpg" alt="SN74F540N" width="1200" height="900">
A picture that opens the part, for a README
[![SN74F540N](https://pcbkit.io/embed/parts/ti/SN74F540N.jpg?size=s)](https://pcbkit.io/parts/ti/SN74F540N)

Questions

Is there a KiCad symbol and footprint for the SN74F540N?

Yes. The symbol is 74xx:74LS540 and the footprint Package_DIP:DIP-20_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 SN74F540N?

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

Where is the SN74F540N datasheet?

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

Where can I order the SN74F540N?

JLCPCB lists it as part C3754610, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SN74F540N?

Parts like it in the library: the SN74HC244N(LX) by lingxingic, the AIP74HC540DA20.TB by Wuxi I-core Elec, the AIP74HC541DA20.TB by Wuxi I-core Elec and the 74HC244N-HX by ZHHXDZ. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8