Skip to the content
PCBKitNew board
SN74ALS646FN on a board, in 3D

SN74ALS646FN

Texas Instruments

0℃~+70℃ 1 15mA 35ns@5V,50pF 4.5V~5.5V 48mA 74ALS 8 Bidirectional Output enable StandardCMOS Tri-State、Open-drain PLCC-28 Buffers, Drivers, Receivers, Transceivers

Extended
DatasheetJLCPCBLCSCti/SN74ALS646FN
Category
Buffers, Drivers, Receivers, Transceivers
Package
PLCC-28
Pins
5

Overview

The SN74ALS646FN is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a PLCC-28 package with 28 pins. 0℃~+70℃ 1 15mA 35ns@5V,50pF 4.5V~5.5V 48mA 74ALS 8 Bidirectional Output enable StandardCMOS Tri-State、Open-drain PLCC-28 Buffers, Drivers, Receivers, Transceivers.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74ALS646FN, from EasyEDA) and its footprint (EasyEDA_Cloud:PLCC-28_L11.5-W11.5-P1.27-LS12.5-T, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3753637).

Symbol

NC1CAB2SAB3DIR4A15A26A37NC8A49A510A611A712A813GND14NC15B816B717B618B519B420B321NC22B223B124G#25SBA26CBA27VCC28
EasyEDA_Cloud:SN74ALS646FNFrom EasyEDA

Footprint

12345678910111213141516171819202122232425262728
EasyEDA_Cloud:PLCC-28_L11.5-W11.5-P1.27-LS12.5-TFrom EasyEDA

Parameters

12
Channel Type
Bidirectional
Current - Output High(IOH)
15mA
Current - Output Low(IOL)
48mA
Features
Output enable
Input type
StandardCMOS
Logic Family
74ALS
Number of Bits per Element
8
Number of Elements
1
Operating Temperature
0℃~+70℃
Propagation Delay
35ns@5V,50pF
Voltage - Supply
4.5V~5.5V
output type
Open-drain；Tri-State

Order codes

1

Pinout

28
The pins of the SN74ALS646FN
PinNameType
1NCUnspecified
2CABUnspecified
3SABUnspecified
4DIRUnspecified
5A1Unspecified
6A2Unspecified
7A3Unspecified
8NCUnspecified
9A4Unspecified
10A5Unspecified
11A6Unspecified
12A7Unspecified
13A8Unspecified
14GNDUnspecified
15NCUnspecified
16B8Unspecified
17B7Unspecified
18B6Unspecified
19B5Unspecified
20B4Unspecified
21B3Unspecified
22NCUnspecified
23B2Unspecified
24B1Unspecified
25G#Unspecified
26SBAUnspecified
27CBAUnspecified
28VCCUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/SN74ALS646FN" title="SN74ALS646FN 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/SN74ALS646FN.jpg" alt="SN74ALS646FN" width="1200" height="900">
A picture that opens the part, for a README
[![SN74ALS646FN](https://pcbkit.io/embed/parts/ti/SN74ALS646FN.jpg?size=s)](https://pcbkit.io/parts/ti/SN74ALS646FN)

Questions

Is there a KiCad symbol and footprint for the SN74ALS646FN?

Yes. The symbol is EasyEDA_Cloud:SN74ALS646FN and the footprint EasyEDA_Cloud:PLCC-28_L11.5-W11.5-P1.27-LS12.5-T, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN74ALS646FN?

PLCC-28, with 28 pins. Its footprint is drawn on this page.

Where is the SN74ALS646FN datasheet?

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

Where can I order the SN74ALS646FN?

JLCPCB lists it as part C3753637, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SN74ALS646FN?

Parts like it in the library: the SY10E416JC by Microchip Technology, the SY10E416JC-TR by Microchip Technology, the SY10E416JY TR by Microchip Technology and the 100313QC by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8