
Overview
The SN74LS161ANS is a counters, Divider made by Texas Instruments with 16 pins. 4 74LS Reset function、Cascade counter、Synchronous counting - Counters, Dividers ROHS.
PCBKit's library has its KiCad symbol (74xx_IEEE:74LS161, from KiCad's library) and its footprint (EasyEDA_Cloud:SOIC-16_L10.2-W5.3-P1.27-LS7.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C6680904).
Symbol
Footprint
Parameters
8- Count Rate
- 35MHz
- Features
- Reset function, Cascade counter, Synchronous counting
- Propagation Delay
- 32ns@5V,50pF
- Reset
- Asynchronous
- Resolution
- 4
- Series
- 74LS
- Timing
- Synchronous
- Trigger Type
- Rising Edge
Order codes
1- SN74LS161ANSLCSC C6680904
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | MR | Input |
| 2 | CK | Input |
| 3 | P0 | Input |
| 4 | P1 | Input |
| 5 | P2 | Input |
| 6 | P3 | Input |
| 7 | ENP | Input |
| 8 | GND | Power in |
| 9 | Pe | Input |
| 10 | ENT | Input |
| 11 | Q3 | Output |
| 12 | Q2 | Output |
| 13 | Q1 | Output |
| 14 | Q0 | Output |
| 15 | Tc | Output |
| 16 | VCC | Power in |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/ti/SN74LS161ANS" title="SN74LS161ANS in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/SN74LS161ANS.jpg" alt="SN74LS161ANS" width="1200" height="900">[](https://pcbkit.io/parts/ti/SN74LS161ANS)Questions
Is there a KiCad symbol and footprint for the SN74LS161ANS?
Yes. The symbol is 74xx_IEEE:74LS161 and the footprint EasyEDA_Cloud:SOIC-16_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 SN74LS161ANS datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS161ANS?
JLCPCB lists it as part C6680904, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS161ANS?
Parts like it in the library: the SN74LS161ANSR by Texas Instruments, the 74AC161SJ by onsemi, the 74AC161SJX by onsemi and the 74AC163SJ by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8SN74LS161ANSR
SOIC-16-208mil0℃~+70℃ 1 24ns 25MHz 4 4.75V 93mW Asynchronous Divide-by-2 Rising Edge Synchronous SOIC-16-208mil Counters, Dividers ROHSTexas InstrumentsCounters, Dividers74AC161SJ
SOIC-16-208mil-40℃~+85℃ 1 167MHz 2V~6V 4 5ns@5V,50pF 74AC Asynchronous Divide-by-2 Programmable divide ratio、Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous Up Counter SOIC-16-208mil Counters, Dividers ROHSonsemiCounters, Dividers74AC161SJX
SOIC-16-208mil-40℃~+85℃ 1 167MHz 2V~6V 4 5ns@5V,50pF 74AC Asynchronous Divide-by-2 Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous Up Counter SOIC-16-208mil Counters, Dividers ROHSonsemiCounters, Dividers74AC163SJ
SOIC-16-208mil-40℃~+85℃ 1 140MHz 2V~6V 4 5.5ns@5V,50pF、6ns@5V,50pF 74AC Divide-by-2 Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous Synchronous Up Counter SOIC-16-208mil Counters, Dividers ROHSonsemiCounters, Dividers74AC163SJX
SOIC-16-208mil-40℃~+85℃ 1 140MHz 2V~6V 5.5ns@5V,50pF、6ns@5V,50pF 74AC Divide-by-2 Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous Synchronous Up Counter SOIC-16-208mil Counters, Dividers ROHSonsemiCounters, Dividers74AC169SJ
SOIC-16-208mil-40℃~+85℃ 154MHz 2V~6V 4 74AC 7ns@5V,50pF、7.5ns@5V,50pF Divide-by-2 Programmable divide ratio、Cascade counter、Synchronous counting、Multi-mode counting Rising Edge Synchronous Up Counter、Down Counter SOIC-16-208mil Counters, Dividers ROHSonsemiCounters, Dividers74AC191SJ
SOIC-16-208mil-40℃~+85℃ 1 133MHz 2V~6V 4 6ns@5V,50pF 74AC Asynchronous Divide-by-2 Programmable divide ratio、Cascade counter、Synchronous counting、Asynchronous parallel load Rising Edge Synchronous Up Counter、Down Counter SOIC-16-208mil Counters, Dividers ROHSonsemiCounters, Dividers74ACT163SJ
SOIC-16-208mil-40℃~+85℃ 1 140MHz 4 4.5V~5.5V 5.5ns@5V,50pF、6ns@5V,50pF 74ACT Divide-by-2 Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous Synchronous Up Counter SOIC-16-208mil Counters, Dividers ROHSonsemiCounters, Dividers