Skip to the content
PCBKitNew board
SN54LS191J, in 3D

SN54LS191J

Texas Instruments

Extended
DatasheetJLCPCBLCSCti/SN54LS191J
Category
Counters, Dividers
Package
CDIP-16
Pins
16

Overview

The SN54LS191J is a counters, Divider made by Texas Instruments in a CDIP-16 package with 16 pins.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74ALS191ANG4, from EasyEDA) and its footprint (EasyEDA_Cloud:CDIP-16_L21.4-W6.8-P2.54-LS7.8-BL, from EasyEDA), ready for a KiCad board. 11 are in stock at JLCPCB (part C3827785).

Symbol

D9D/U#5C10CLK14CTEN#4QA3QB2QC6QD7GND8RCO#13MAX/MIN12LOAD#11B1A15VCC16
EasyEDA_Cloud:SN74ALS191ANG4From EasyEDA

Footprint

12345678910111213141516
EasyEDA_Cloud:CDIP-16_L21.4-W6.8-P2.54-LS7.8-BLFrom EasyEDA

Parameters

12
Count Rate
25MHz
Features
Multi-mode counting
Logic Type
Binary Counter
Operating Temperature
-55℃~+125℃
Power Dissipation
100mW
Propagation Delay
20ns
Reset
Asynchronous
Resolution
4
Series
LS
Timing
Synchronous
Trigger Type
Rising Edge
Voltage - Supply
4.5V~5.5V

Order codes

1

Pinout

16
The pins of the SN54LS191J
PinNameType
1BUnspecified
2QBUnspecified
3QAUnspecified
4CTEN#Unspecified
5D/U#Unspecified
6QCUnspecified
7QDUnspecified
8GNDUnspecified
9DUnspecified
10CUnspecified
11LOAD#Unspecified
12MAX/MINUnspecified
13RCO#Unspecified
14CLKUnspecified
15AUnspecified
16VCCUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/SN54LS191J" title="SN54LS191J 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/SN54LS191J.jpg" alt="SN54LS191J" width="1200" height="900">
A picture that opens the part, for a README
[![SN54LS191J](https://pcbkit.io/embed/parts/ti/SN54LS191J.jpg?size=s)](https://pcbkit.io/parts/ti/SN54LS191J)

Questions

Is there a KiCad symbol and footprint for the SN54LS191J?

Yes. The symbol is EasyEDA_Cloud:SN74ALS191ANG4 and the footprint EasyEDA_Cloud:CDIP-16_L21.4-W6.8-P2.54-LS7.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN54LS191J?

CDIP-16, with 16 pins. Its footprint is drawn on this page.

Where is the SN54LS191J datasheet?

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

Where can I order the SN54LS191J?

JLCPCB lists it as part C3827785, with 11 in stock; the sellers' links on this page open their listings.

What can replace the SN54LS191J?

Parts like it in the library: the CD54HCT163F by Texas Instruments, the CD4024BF by Texas Instruments, the CD4022BF3 by Texas Instruments and the CD54ACT161F3A by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8