Skip to the content
PCBKitNew board
LM556CMX on a board, in 3D

LM556CMX

Texas Instruments

SOIC-14 Timers / Counters ROHS

Extended
JLCPCBLCSCti/LM556CMX
Category
Timers , Counters
Package
SOIC-14
Pins
14

Overview

The LM556CMX is a timers , Counter made by Texas Instruments in a SOIC-14 package with 14 pins. SOIC-14 Timers / Counters ROHS.

PCBKit's library has its KiCad symbol (Timer:LM556, from KiCad's library) and its footprint (Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C7961).

Symbol

GND7VCC14DISCH1THRES2CONT3RST4OUT5TRIG6
Timer:LM556From KiCad's library

Footprint

1234567891011121314
Package_SO:SOIC-14_3.9x8.7mm_P1.27mmFrom KiCad's library

Order codes

1

Pinout

14
The pins of the LM556CMX
PinNameType
1DISCHInput
2THRESInput
3CONTPassive
4RSTInput
5OUTOutput
6TRIGInput
7GNDPower in
8TRIGInput
9OUTOutput
10RSTInput
11CONTPassive
12THRESInput
13DISCHInput
14VCCPower in

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/LM556CMX" title="LM556CMX 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/LM556CMX.jpg" alt="LM556CMX" width="1200" height="900">
A picture that opens the part, for a README
[![LM556CMX](https://pcbkit.io/embed/parts/ti/LM556CMX.jpg?size=s)](https://pcbkit.io/parts/ti/LM556CMX)

Questions

Is there a KiCad symbol and footprint for the LM556CMX?

Yes. The symbol is Timer:LM556 and the footprint Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM556CMX?

SOIC-14, with 14 pins. Its footprint is drawn on this page.

Where can I order the LM556CMX?

JLCPCB lists it as part C7961, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LM556CMX?

Parts like it in the library: the NA556D by Texas Instruments, the MC14541BD by onsemi, the NE556D by Texas Instruments and the NE556DRG by HANSCHIP semiconductor. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8