Skip to the content
PCBKitNew board
74FCT521APC, in 3D

74FCT521APC

Texas Instruments

0℃~+70℃ 1.5mA 15mA 4.75V~5.25V 48mA 7.2ns@5V,50pF 8 A=B Active Low Multi-device cascading PDIP-20 Digital Comparators

Extended
DatasheetJLCPCBLCSCti/74FCT521APC
Category
Digital Comparators
Package
PDIP-20
Pins
5

Overview

The 74FCT521APC is a digital Comparator made by Texas Instruments in a PDIP-20 package with 5 pins. 0℃~+70℃ 1.5mA 15mA 4.75V~5.25V 48mA 7.2ns@5V,50pF 8 A=B Active Low Multi-device cascading PDIP-20 Digital Comparators.

PCBKit's library has its footprint (Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3659274).

Symbol

The library has no symbol for this part yet.

Footprint

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

Order codes

1

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/74FCT521APC" title="74FCT521APC 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/74FCT521APC.jpg" alt="74FCT521APC" width="1200" height="900">
A picture that opens the part, for a README
[![74FCT521APC](https://pcbkit.io/embed/parts/ti/74FCT521APC.jpg?size=s)](https://pcbkit.io/parts/ti/74FCT521APC)

Questions

Is there a KiCad symbol and footprint for the 74FCT521APC?

Yes. 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 74FCT521APC?

PDIP-20, with 5 pins. Its footprint is drawn on this page.

Where is the 74FCT521APC datasheet?

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

Where can I order the 74FCT521APC?

JLCPCB lists it as part C3659274, with 0 in stock; the sellers' links on this page open their listings.

What can replace the 74FCT521APC?

Parts like it in the library: the SN74LS688N by Texas Instruments, the SN74HC682N by Texas Instruments, the DM74ALS520N by onsemi and the 74HC688P-E by Renesas Electronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8