

Overview
The LM555CMM is a timers , Counter made by Texas Instruments in a MSOP-8 package with 8 pins. 0℃~+70℃ 10mA 4.5V~16V MSOP-8 555 Timers / Counters ROHS.
PCBKit's library has its KiCad symbol (Timer:LM555xM, from KiCad's library) and its footprint (Package_SO:MSOP-8_3x3mm_P0.65mm, from KiCad's library), ready for a KiCad board. 132 are in stock at JLCPCB (part C2876495). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
8- Current - Supply
- 10mA
- Features
- Reset function
- Frequency
- 100kHz
- Operating Temperature
- 0℃~70℃
- Output Current
- 200mA
- Supply Current
- 3mA
- Timer Number
- 1
- Voltage - Supply
- 4.5V~16V
Order codes
2- LM555CMM/NOPBLCSC C2876495
- LM555CMMLCSC C3304622
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | GND | Power in |
| 2 | TRIG | Input |
| 3 | OUT | Output |
| 4 | RST | Input |
| 5 | CONT | Passive |
| 6 | THRES | Input |
| 7 | DISCH | Input |
| 8 | VCC | Power in |
Open-source boards using it
All 1- 2 layers31.3 × 17.5 mm

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Is there a KiCad symbol and footprint for the LM555CMM?
Yes. The symbol is Timer:LM555xM and the footprint Package_SO:MSOP-8_3x3mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM555CMM?
MSOP-8, with 8 pins. Its footprint is drawn on this page.
Where is the LM555CMM datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM555CMM?
JLCPCB lists it as part C2876495, with 132 in stock; the sellers' links on this page open their listings.
What can replace the LM555CMM?
Parts like it in the library: the NE555D by Texas Instruments, the NE555P by Texas Instruments, the SA555P by Texas Instruments and the NE556N by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the LM555CMM?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8NE555D
SOIC-80℃~+70℃ 10mA 4.5V~16V SOIC-8 555 Timers / Counters ROHSTexas InstrumentsTimers / CountersNE555P
DIP-80℃~+70℃ 100kHz 10mA 4.5V~16V DIP-8 555 Timers / Counters ROHSTexas InstrumentsTimers / CountersSA555P
DIP-8-40℃~+85℃ 100kHz 10mA 4.5V~16V DIP-8 555 Timers / Counters ROHSTexas InstrumentsTimers / CountersNE556N
DIP-140℃~+70℃ 20mA 4.5V~16V DIP-14 555 Timers / Counters ROHSTexas InstrumentsTimers / CountersCD4541BPW
TSSOP-14-55℃~+125℃ 100kHz 3V~20V TSSOP-14 Timers / Counters ROHSTexas InstrumentsTimers / CountersCD4541BE
PDIP-14-55℃~+125℃ 100kHz 3V~20V Programmable time-base frequency division network、Built-in crystal oscillator DIP-14 Timers / Counters ROHSTexas InstrumentsTimers / CountersCD4541BM
SOIC-14-55℃~+125℃ 1 100kHz 3V~20V Programmable time-base frequency division network、Built-in crystal oscillator Yes SOIC-14 Timers / Counters ROHSTexas InstrumentsTimers / CountersCD4541BMT
SOIC-14-55℃~+125℃ 100kHz Yes SOIC-14 Timers / Counters ROHSTexas InstrumentsTimers / Counters