Overview
The 74LS161ADC is a counters, Divider made by Texas Instruments with 16 pins. 0℃~+70℃ 14ns 32MHz 4 4.75V~5.25V 74LS 93mW Asynchronous Binary Counter Programmable divide ratio、Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous - Counters, Dividers.
PCBKit's library has its KiCad symbol (74xx_IEEE:74LS161, from KiCad's library) and its footprint (EasyEDA_Cloud:SOP-16_L9.9-W3.9-P1.27-LS6.0-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3828190).
Symbol
Footprint
Parameters
12- Count Rate
- 32MHz
- Features
- Programmable divide ratio；Reset function；Cascade counter；Synchronous counting
- Logic Type
- Binary Counter
- Operating Temperature
- 0℃~+70℃
- Power Dissipation
- 93mW
- Propagation Delay
- 14ns
- Reset
- Asynchronous
- Resolution
- 4
- Series
- 74LS
- Timing
- Synchronous
- Trigger Type
- Rising Edge
- Voltage - Supply
- 4.75V~5.25V
Order codes
1- 74LS161ADCLCSC C3828190
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 |
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Is there a KiCad symbol and footprint for the 74LS161ADC?
Yes. The symbol is 74xx_IEEE:74LS161 and the footprint EasyEDA_Cloud:SOP-16_L9.9-W3.9-P1.27-LS6.0-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the 74LS161ADC datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the 74LS161ADC?
JLCPCB lists it as part C3828190, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 74LS161ADC?
Parts like it in the library: the CD4510BNS by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
