SN74LS93NG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN74LS93NG4 is a 4-bit binary ripple counter in a 14-pin DIP package from the 74LS TTL logic family. It features two independent clock inputs, asynchronous reset, and operates at 5 V supply voltage, suitable for frequency division and digital counting applications.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN74LS93NG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74LS93NG4?
- 4-bit binary ripple counter with independent divide-by-2 and divide-by-8 sections for flexible frequency division
- Asynchronous master reset enables immediate counter clearing without wait for clock edge
- 74LS TTL logic family providing low power Schottky performance at 5 V supply voltage
- 14-pin DIP package with through-hole mounting for easy prototyping and breadboard use
What is SN74LS93NG4 used for?
The SN74LS93NG4 is used in digital frequency dividers, clock generation circuits, and pulse counting applications where 4-bit binary counting up to 16 states is needed. It is commonly found in timing circuits, event counters, and educational electronics projects requiring standard 74LS TTL logic compatibility.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SN74LS93NG4 datasheet?
SN74LS93NG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74LS93NG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the SN74LS93NG4 achieve divide-by-16 counting from its two internal counter sections?
The SN74LS93NG4 contains a divide-by-2 section and a divide-by-8 section. By connecting the QA output of the divide-by-2 stage to the clock input of the divide-by-8 stage, you achieve a full 4-bit ripple counter that divides by 16. This configuration counts from 0 to 15 at 5 V TTL logic levels.
What supply voltage does SN74LS93NG4 require and how does it compare to 74HC family counters?
The SN74LS93NG4 operates from a 5 V supply, consistent with the 74LS TTL logic family. Compared to 74HC CMOS family counters that operate from 2 V to 6 V, the 74LS version has faster propagation delays but higher quiescent current. The 5 V operation makes it directly compatible with legacy TTL systems without level-shifting.
In a frequency division circuit, how does the asynchronous reset of SN74LS93NG4 affect counting accuracy?
The SN74LS93NG4 asynchronous master reset forces all 4 outputs to logic 0 independent of clock, allowing reset within nanoseconds of assertion. This means the reset takes effect immediately rather than waiting for the next clock edge, which is critical in time-critical frequency dividers requiring precise start conditions at 5 V operation.
Which PCB design considerations apply when using SN74LS93NG4 in its 14-pin DIP package?
The SN74LS93NG4 14-pin DIP package has a 0.1-inch (2.54 mm) pin pitch standard through-hole footprint. Designers should place a 0.1 µF bypass capacitor between VCC and GND pins close to the package to minimize TTL switching noise. The DIP package simplifies prototyping on breadboards or DIP sockets before final PCB integration.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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