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Integrated Circuits (ICs)

Integrated circuits are the building blocks of nearly every electronic product, from power adapters and industrial controllers to medical devices and automotive systems. This category covers a wide range of sub-types, including audio special purpose ICs, clock and timing devices, data acquisition converters, embedded processors and controllers, interface transceivers, linear amplifiers, logic gates, memory chips, power management PMICs, and other specialized functions. Most designs rely on a mix of these, and sourcing them often means juggling multiple manufacturers, package styles, and lifecycle statuses at once. When buyers come to us looking for ICs, the conversation usually starts with the part number and quickly moves to date codes, packaging preferences, and whether the part is still in active production. Tape-and-reel versus tray matters more than people outside the industry might expect, especially for automated assembly lines. Lead time is another big factor. A part that shows a 26-week factory lead time might be available from franchised or independent channels in a fraction of that, but the trade-off is often price and the need for tighter quality checks. Counterfeit risk is real in this market, particularly for older or allocated parts, so traceability and incoming inspection are things experienced procurement teams ask about before placing an order. We also see a lot of requests where an engineer needs a specific grade, like automotive AEC-Q100 qualified or industrial temperature range, and the commercial-grade version simply will not work for their application. Package type, pin count, and RoHS compliance round out the usual checklist. If you are working through a BOM and want to see what we have on the shelf or what we can source, take a look at current stock on icxing.com or send us your list for a quote. We will get back to you with actual availability and pricing, not a generic auto-reply.

Frequently Asked Questions

How do I know the ICs I am buying are not counterfeit?

This is one of the most common concerns, especially for obsolete or allocated parts. Reputable distributors perform visual inspection, X-ray analysis, and sometimes decapsulation or electrical testing on high-risk lots. Ask your supplier about their quality control process and whether they can provide traceability documentation back to the original manufacturer.

What is the difference between commercial, industrial, and automotive grade ICs?

The main differences are operating temperature range and qualification standards. Commercial grade typically handles 0 to 70 degrees Celsius, industrial extends to minus 40 to 85 or higher, and automotive parts meet AEC-Q100 standards with even tighter reliability requirements. Using a commercial-grade part in an industrial or automotive design can lead to field failures, so always match the grade to your application.

The factory lead time on my part is 20 weeks. Can I get it faster?

Often yes, through franchised distributors holding stock or through independent channels that specialize in hard-to-find components. The trade-off is usually a higher unit price and the need for additional incoming inspection if the source is not franchised. Send us the part number and quantity and we can check what is actually available right now.

classification:
Image Part Manufacturer Description Stock Action
74LS503SC National Semiconductor
SHIFT REGISTER, T...
5,700
In-stock
Inquiry
54170DM National Semiconductor
SHIFT REGISTER
2,310
In-stock
Inquiry
54AC299DMQB National Semiconductor
PARALLEL IN/OUT
6,720
In-stock
Inquiry
54LS395LM National Semiconductor
PARALLEL IN PARA...
2,760
In-stock
Inquiry
54F164FMQB National Semiconductor
SERIAL IN PARALL...
6,370
In-stock
Inquiry
7491ADC National Semiconductor
SHIFT REGISTER, 8...
3,610
In-stock
Inquiry
54LS164LM National Semiconductor
8 BIT SERIAL IN/PA...
6,770
In-stock
Inquiry
4015BDM National Semiconductor
SHIFT REGISTER, 4...
1,050
In-stock
Inquiry
4015BDMQB National Semiconductor
SERIAL IN PARALL...
6,550
In-stock
Inquiry
93L00PC National Semiconductor
SHIFT REGISTER, 4...
6,150
In-stock
Inquiry
7491APC National Semiconductor
SHIFT REGISTER, 8...
2,970
In-stock
Inquiry
4035BDM National Semiconductor
SHIFT REGISTER
4,370
In-stock
Inquiry
93L38DC National Semiconductor
REGISTER FILE
1,200
In-stock
Inquiry
54F676DMQB National Semiconductor
PARALLEL IN/OUT
2,050
In-stock
Inquiry
95H00DC National Semiconductor
SHIFT REGISTER, 4...
7,350
In-stock
Inquiry
93L28FM National Semiconductor
SERIAL IN SERIAL...
6,270
In-stock
Inquiry
4731BDC (-5V) National Semiconductor
SHIFT REGISTER, 6...
1,140
In-stock
Inquiry
54S194FM National Semiconductor
SHIFT REGISTER, 4...
4,730
In-stock
Inquiry
54F676LMQB National Semiconductor
PARALLEL IN/OUT
3,430
In-stock
Inquiry
JM54AC299BSA National Semiconductor
PARALLEL IN PARA...
2,030
In-stock
Inquiry