Skip to the content
PCBKitNew board
74LS377PC on a board, in 3D

74LS377PC

Texas Instruments

0℃~+70℃ 1 10ns 25ns@5V,15pF 28mA 30MHz 4.75V~5.25V 400uA 5ns 74LS Series 8 8mA D-Type Rising Edge Synchronous PDIP-20 Flip Flops ROHS

Extended
DatasheetJLCPCBLCSCti/74LS377PC
Category
Flip Flops
Package
PDIP-20
Pins
5

Overview

The 74LS377PC is a flip Flop made by Texas Instruments in a PDIP-20 package with 20 pins. 0℃~+70℃ 1 10ns 25ns@5V,15pF 28mA 30MHz 4.75V~5.25V 400uA 5ns 74LS Series 8 8mA D-Type Rising Edge Synchronous PDIP-20 Flip Flops ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS377, 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 C3827078). 41 open-source boards in 22 repositories on GitHub use it.

Symbol

E1Q02D03D14Q15Q26D27D38Q39GND10CP11Q412D413D514Q515Q616D617D718Q719VCC20
74xx:74LS377From KiCad's library

Footprint

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

Order codes

1

Pinout

20
The pins of the 74LS377PC
PinNameType
1EInput
2Q0Output
3D0Input
4D1Input
5Q1Output
6Q2Output
7D2Input
8D3Input
9Q3Output
10GNDPower in
11CPInput
12Q4Output
13D4Input
14D5Input
15Q5Output
16Q6Output
17D6Input
18D7Input
19Q7Output
20VCCPower in

Open-source boards using it

All 41
  • 2 layers237.5 × 102.9 mmInstruction, the printed circuit board in 3D

    Instruction

    jes/scamp-cpu

    A homebrew 16-bit CPU with a homebrew Unix-like-ish operating system.

    112 parts301Unlicense
  • 2 layers100.6 × 74.9 mmNes discrete mapper 1-1, the printed circuit board in 3D

    Nes discrete mapper 1-1

    MouseBiteLabs/NES-Cartridges

    A collection of Nintendo Entertainment System (NES) cartridge circuit boards

    55 parts25CC-BY-SA-4.0
  • 2 layers100 × 61.4 mmCart, the printed circuit board in 3D

    Cart

    digilogistist/The-Open-Source-USB-NES-Project

    USB-NES and NES-FASTGFX product engineering repository

    38 parts24CC0-1.0
  • 2 layers364 × 203 mmCPU6S, the printed circuit board in 3D

    CPU6S

    Meisaka/CenMiniCom

    Centurion Minicomputer Schematics

    240 parts8
  • 2 layers200 × 321.3 mmBackplane, the printed circuit board in 3D

    Backplane

    tergav17/RDP-9

    Homebrew TTL ISA-compatible PDP-9 clone

    137 parts6
  • 2 layers100 × 100 mmCpu board, the printed circuit board in 3D

    Cpu board

    reinvantveer/68KatyClone

    An open-hardware design for an 8-bit Motorola 68008 system

    15 parts5MIT
  • 6 layers210 × 119 mmClaculator Keypad, the printed circuit board in 3D

    Claculator Keypad

    Robert-Mones/Claculator

    A reverse Polish notation calculator with added features such as comparisons, branching, and custom recursive operators taken from the Clac project from the 15-122 course at Carnegie Mellon University.

    202 parts5
  • 2 layersRegisters, the printed circuit board in 3D

    Registers

    adasneves127/SAFETy-Computer

    A full Turing Complete computer made from TTL components

    73 parts3

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/74LS377PC" title="74LS377PC 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/74LS377PC.jpg" alt="74LS377PC" width="1200" height="900">
A picture that opens the part, for a README
[![74LS377PC](https://pcbkit.io/embed/parts/ti/74LS377PC.jpg?size=s)](https://pcbkit.io/parts/ti/74LS377PC)

Questions

Is there a KiCad symbol and footprint for the 74LS377PC?

Yes. The symbol is 74xx:74LS377 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 74LS377PC?

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

Where is the 74LS377PC datasheet?

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

Where can I order the 74LS377PC?

JLCPCB lists it as part C3827078, with 0 in stock; the sellers' links on this page open their listings.

What can replace the 74LS377PC?

Parts like it in the library: the 74HC273N-HX by ZHHXDZ, the 74HC574N-HX by ZHHXDZ, the TC74HC273APF by Toshiba and the CD74AC574E by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the 74LS377PC?

41 boards in 22 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8