Overview
The SN74S161N is a counters, Divider made by AMD in a PDIP-16 package with 16 pins. 0℃~+75℃ 1 100MHz 4 4.75V~5.25V 410mW 74S 9ns@5V,15pF、13ns@5V,15pF Asynchronous Divide-by-2 Reset function、Synchronous counting Rising Edge Synchronous Up Counter PDIP-16 Counters, Dividers.
PCBKit's library has its KiCad symbol (74xx:74LS161, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3828362).
Symbol
Footprint
Parameters
14- Count Rate
- 100MHz
- Direction
- Up Counter
- Features
- Reset function；Synchronous counting
- Logic Type
- Divide-by-2
- Number of Elements
- 1
- Operating Temperature
- 0℃~+75℃
- Power Dissipation
- 410mW
- Propagation Delay
- 13ns@5V,15pF；9ns@5V,15pF
- Reset
- Asynchronous
- Resolution
- 4
- Series
- 74S
- Timing
- Synchronous
- Trigger Type
- Rising Edge
- Voltage - Supply
- 4.75V~5.25V
Order codes
1- SN74S161NLCSC C3828362
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | MR | Input |
| 2 | CP | Input |
| 3 | D0 | Input |
| 4 | D1 | Input |
| 5 | D2 | Input |
| 6 | D3 | Input |
| 7 | CEP | Input |
| 8 | GND | Power in |
| 9 | PE | Input |
| 10 | CET | Input |
| 11 | Q3 | Output |
| 12 | Q2 | Output |
| 13 | Q1 | Output |
| 14 | Q0 | Output |
| 15 | TC | Output |
| 16 | VCC | Power in |
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Is there a KiCad symbol and footprint for the SN74S161N?
Yes. The symbol is 74xx:74LS161 and the footprint Package_DIP:DIP-16_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 SN74S161N?
PDIP-16, with 16 pins. Its footprint is drawn on this page.
Where is the SN74S161N datasheet?
AMD publishes it: the Datasheet link on this page opens it.
Where can I order the SN74S161N?
JLCPCB lists it as part C3828362, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74S161N?
Parts like it in the library: the CD4017BED by GREENMICRO, the CD4017CN by HGSEMI, the SN74LS163N(LX) by lingxingic and the SN74LS192N(XBLW) by XBLW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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