Overview
The SN74LS90N is a counters, Divider made by Texas Instruments in a DIP-14 package with 14 pins. 0℃~+70℃ 1 16ns 4 4.75V~5.25V 42MHz 45mW Asynchronous Asynchronous Divide-by-10 Falling Edge Up Counter DIP-14 Counters, Dividers ROHS.
PCBKit's library has its KiCad symbol (Standard Logic:7490, from CERN's library) and its footprint (Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. 961 are in stock at JLCPCB (part C5262).
Symbol
Footprint
Parameters
13- Count Rate
- 42MHz
- Direction
- Up Counter
- Features
- Reset function
- Logic Type
- Divide-by-10
- Number of Elements
- 1
- Operating Temperature
- 0℃~+70℃
- Power Dissipation
- 45mW
- Propagation Delay
- 16ns
- Reset
- Asynchronous
- Series
- 74LS
- Timing
- Asynchronous
- Trigger Type
- Falling Edge
- Voltage - Supply
- 4.75V~5.25V
Order codes
1- SN74LS90NLCSC C5262
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | CKB | Input |
| 2 | R0-1 | Input |
| 3 | R0-2 | Input |
| 4 | NC | Passive |
| 5 | VCC | Power in |
| 6 | R9-1 | Input |
| 7 | R9-2 | Input |
| 8 | QC | Output |
| 9 | QB | Output |
| 10 | GND | Power in |
| 11 | QD | Output |
| 12 | QA | Output |
| 13 | NC | Passive |
| 14 | CKA | Input |
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Is there a KiCad symbol and footprint for the SN74LS90N?
Yes. The symbol is Standard Logic:7490 and the footprint Package_DIP:DIP-14_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 SN74LS90N?
DIP-14, with 14 pins. Its footprint is drawn on this page.
Where is the SN74LS90N datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS90N?
JLCPCB lists it as part C5262, with 961 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS90N?
Parts like it in the library: the XD74LS90 by XINLUDA, the SN74LS293N by Texas Instruments, the SN74LS93N by Texas Instruments and the MC74HC393N by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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