Overview
The SN74LS90NS is a counters, Divider made by Texas Instruments with 14 pins. 0℃~+70℃ 12ns@5V,15pF 4 4.75V~5.25V 42MHz 45mW 74LS Asynchronous Asynchronous Decade Counter Falling Edge Reset function、Multi-mode counting Up Counter - Counters, Dividers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74LS90NS, from EasyEDA) and its footprint (EasyEDA_Cloud:SOIC-14_L10.2-W5.3-P1.27-LS7.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C6489200).
Symbol
Footprint
Parameters
13- Count Rate
- 42MHz
- Direction
- Up Counter
- Features
- Reset function, Multi-mode counting
- Logic Type
- Decade Counter
- Operating Temperature
- 0℃~+70℃
- Power Dissipation
- 45mW
- Propagation Delay
- 12ns@5V,15pF
- Reset
- Asynchronous
- Resolution
- 4
- Series
- 74LS
- Timing
- Asynchronous
- Trigger Type
- Falling Edge
- Voltage - Supply
- 4.75V~5.25V
Order codes
1- SN74LS90NSLCSC C6489200
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | CP1# | Unspecified |
| 2 | MR1# | Unspecified |
| 3 | MR2# | Unspecified |
| 4 | NC | Unspecified |
| 5 | VCC | Unspecified |
| 6 | MS1 | Unspecified |
| 7 | MS2 | Unspecified |
| 8 | Q2 | Unspecified |
| 9 | Q1 | Unspecified |
| 10 | GND | Unspecified |
| 11 | Q3 | Unspecified |
| 12 | Q0 | Unspecified |
| 13 | NC | Unspecified |
| 14 | CP0# | Unspecified |
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Is there a KiCad symbol and footprint for the SN74LS90NS?
Yes. The symbol is EasyEDA_Cloud:SN74LS90NS and the footprint EasyEDA_Cloud:SOIC-14_L10.2-W5.3-P1.27-LS7.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the SN74LS90NS datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS90NS?
JLCPCB lists it as part C6489200, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS90NS?
Parts like it in the library: the SN74LS93NS by Texas Instruments and the SN74LS393M by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
