Specialized ICs

Specialized ICs

Specialized Ics is the catch-all shelf for chips that do not fit neatly into standard logic, memory, or power management families. Think of parts built for one job and done well: audio codecs, motor driver ICs for specific brushless configurations, RF front-end modules, energy metering chips, touch controllers, LED drivers with unusual channel counts, protocol-specific interface chips, and automotive or industrial parts with dedicated functions like battery cell monitors or Hall-effect signal conditioning. These are the components that show up on a BOM once, in low volume, and cause the most headaches when the original source dries up. Buyers usually land here after an authorized channel quotes a long lead time or the part has quietly gone to last-time-buy status. What experienced procurement people actually check first is not price. It is package, revision, and date code. A specialized IC in the wrong package variant, or an older die revision that behaves slightly differently in your circuit, will cost more time than a few cents saved on unit price. Counterfeit risk is also higher in this category than in commodity parts, because low-volume chips attract less scrutiny and are easier to re-mark or pull from scrapped boards. We see this most often with discontinued motor drivers and older metering ICs. The honest trade-off here is lead time versus certainty. Original stock with full traceability costs more and ships slower. Spot-market stock is fast and cheap but needs testing before it goes anywhere near a production line. If you have a part number and a target quantity, send it through the quote form at icxing.com and we will tell you what is actually on the shelf, what condition it is in, and what it costs. No guesswork on either side.

Frequently Asked Questions

How do I know a specialized IC from your stock is genuine and not a re-marked pull?

We source through vetted channels and can provide traceability information on request. For older or discontinued parts, we flag date codes and package condition clearly so you can decide before committing, not after.

The part I need is obsolete. Can you still find it?

Often yes, through our broker and excess-stock network. Availability depends on how many were made and how quickly the market absorbed leftover stock, so send us the exact part number including suffix and package code and we will check.

Why does pricing vary so much for the same specialized IC across suppliers?

Low-volume parts have thin stock, so price reflects scarcity, storage condition, and how urgently the seller needs to move it. A very cheap offer on an obsolete part is worth questioning, especially if the seller cannot show photos of actual labels and packaging.

Image Part Manufacturer Description Stock Action
LMH6505MA National Semiconductor
ANALOG CIRCUIT, 1...
4,950
In-stock
Inquiry
LMS1587CS-1.5/J7001774 National Semiconductor
FIXED POSITIVE L...
6,930
In-stock
Inquiry
LM1117MPX-ADJ/32 National Semiconductor
ADJUSTABLE POSIT...
1,220
In-stock
Inquiry
LM431ACZ/J5000260 National Semiconductor
TWO TERMINAL VOL...
5,490
In-stock
Inquiry
LP3985IPB-3.3 National Semiconductor
LP3985 - 150MA LOW-NO...
1,800
In-stock
Inquiry
54LS109J/883 National Semiconductor
J-KBAR FLIP-FLOP,...
7,720
In-stock
Inquiry
54LS375DM-MIL National Semiconductor
D LATCH, LS SERIE...
5,800
In-stock
Inquiry
JD54L02BCA National Semiconductor
54L02 - QUAD 2-INPUT...
4,860
In-stock
Inquiry
PAL16L8J/883 National Semiconductor
PAL16L8 - ELECTRIC...
6,750
In-stock
Inquiry
LM2675MX-ADJ/NAK2 National Semiconductor
SWITCHING REGULA...
7,980
In-stock
Inquiry
74148DC National Semiconductor
ENCODER, 74148 SERI...
6,330
In-stock
Inquiry
DM54LS26N/883 National Semiconductor
54LS26 - QUAD 2-INPU...
4,560
In-stock
Inquiry
LM8342SD/NOPB National Semiconductor
LM8342 PROGRAMMABL...
4,930
In-stock
Inquiry
MM4676BJ/883C National Semiconductor
MM4676BJ/883C
5,710
In-stock
Inquiry
54LS240LM National Semiconductor
OCTAL BUFFERS/DR...
6,230
In-stock
Inquiry
DM8510 National Semiconductor
DM8510
1,200
In-stock
Inquiry
74S175FM National Semiconductor
D FLIP-FLOP
7,800
In-stock
Inquiry
MM4609AW/883C National Semiconductor
MM4609AW/883C
6,350
In-stock
Inquiry
MM4660BJ/883C National Semiconductor
MM4660BJ/883C
2,010
In-stock
Inquiry
74F04LC National Semiconductor
INVERTER, F/FAST ...
1,250
In-stock
Inquiry