Skip to the content
PCBKitNew board
MM74HC540WM on a board, in 3D

MM74HC540WM

onsemi

-40℃~+85℃ 25ns@4.5V,50pF 2V~6V 6mA 6mA 74HC 8 80uA Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHS

Extended
DatasheetJLCPCBLCSConsemi/MM74HC540WM
Category
Buffer, Driver, Transceiver
Package
SOIC-20-300mil
Pins
20

Overview

The MM74HC540WM is a buffer, Driver, Transceiver made by onsemi in a SOIC-20-300mil package with 20 pins. -40℃~+85℃ 25ns@4.5V,50pF 2V~6V 6mA 6mA 74HC 8 80uA Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:74BC540AFP-E, from EasyEDA) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C906740).

Symbol

VCC20G2#19Y118Y217Y316Y415Y514Y613Y712Y811GND10A89A78A67A56A45A34A23A12G1#1
EasyEDA_Cloud:74BC540AFP-EFrom EasyEDA

Footprint

1234567891011121314151617181920
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mmFrom KiCad's library

Parameters

10
Current - Output High(IOH)
6mA
Current - Output Low(IOL)
6mA
Features
Output enable
Logic Family
74HC
Number of Bits per Element
8
Operating Temperature
-40℃~+85℃
Propagation Delay
25ns@4.5V,50pF
Quiescent Current
80uA
Voltage - Supply
2V~6V
output type
Tri-State

Order codes

1

Pinout

20
The pins of the MM74HC540WM
PinNameType
1G1#Unspecified
2A1Unspecified
3A2Unspecified
4A3Unspecified
5A4Unspecified
6A5Unspecified
7A6Unspecified
8A7Unspecified
9A8Unspecified
10GNDUnspecified
11Y8Unspecified
12Y7Unspecified
13Y6Unspecified
14Y5Unspecified
15Y4Unspecified
16Y3Unspecified
17Y2Unspecified
18Y1Unspecified
19G2#Unspecified
20VCCUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/onsemi/MM74HC540WM" title="MM74HC540WM 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/onsemi/MM74HC540WM.jpg" alt="MM74HC540WM" width="1200" height="900">
A picture that opens the part, for a README
[![MM74HC540WM](https://pcbkit.io/embed/parts/onsemi/MM74HC540WM.jpg?size=s)](https://pcbkit.io/parts/onsemi/MM74HC540WM)

Questions

Is there a KiCad symbol and footprint for the MM74HC540WM?

Yes. The symbol is EasyEDA_Cloud:74BC540AFP-E and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MM74HC540WM?

SOIC-20-300mil, with 20 pins. Its footprint is drawn on this page.

Where is the MM74HC540WM datasheet?

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

Where can I order the MM74HC540WM?

JLCPCB lists it as part C906740, with 0 in stock; the sellers' links on this page open their listings.

What can replace the MM74HC540WM?

Parts like it in the library: the 74LVC245AD by Nexperia, the 74LVC244AD by Nexperia, the 74HC240D by Nexperia and the SN74AHC244DW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8