Clock/Timing

Clock/Timing

Clock Timing covers the parts that keep a system synchronized: crystal oscillators, clock generators, jitter cleaners, PLLs, buffers, dividers, and real-time clocks. Some designs only need a simple 25 MHz oscillator to drive an MCU, while others depend on a low-jitter clock tree for Ethernet, SerDes, RF, or data converter timing. These parts show up everywhere, from industrial controllers and network switches to medical devices, telecom line cards, and automotive modules. When buyers source clock timing components, the first thing they usually check is frequency stability and jitter, because a cheaper part with worse phase noise can force a redesign later. Package matters too. A lot of engineers still prefer standard SMD packages like 3225 or 5032 for oscillators, but smaller designs keep pushing toward tighter footprints and lower current draw. Supply is the other big issue. Active clock ICs from major brands can go on allocation without much warning, and older RTC or buffer part numbers sometimes drift into last-time-buy status while production is still running. That is where the trade-off usually shows up: pay more for a branded, traceable part now, or gamble on a gray-market offer and risk inconsistent date codes, poor storage, or outright counterfeit stock. For procurement teams, packaging preference is not a small detail either. Tape-and-reel is fine for production, but many repair and NPI builds still need cut tape or small quantities with proper labels and handling. If you are comparing clock timing parts, it helps to send the exact part number, required quantity, target date code, and whether alternates are acceptable. For current stock, lead time, or a quote, check availability at icxing.com.

Frequently Asked Questions

How do I know if a clock timing part is genuine when buying from the open market?

Ask for photos of the label, reel, and lot or date code before placing the order. For timing ICs and oscillators, inconsistent markings and mixed date codes are common warning signs, especially on older or allocated part numbers. Buying through a distributor that can provide traceability lowers that risk.

What specs matter most when comparing oscillators and clock generators?

Start with frequency, stability over temperature, supply voltage, output type, and jitter. For simple MCU clocks, basic stability may be enough, but Ethernet, FPGA, and RF designs often need much tighter phase noise performance. The right part depends on the system budget, not just the headline frequency.

Why do clock timing lead times vary so much between similar part numbers?

Small differences in package, temperature range, frequency option, or output format can turn a common part into a factory-order item. Standard frequencies and popular SMD packages usually move faster, while custom or legacy options may carry long lead times. If your build is urgent, ask about approved alternates early.

1,699 Records
Image Part Manufacturer Description Stock Action
CDCUA877ZQLT Texas Instruments
IC PLL CLOCK DRIV...
5,950
In-stock
Inquiry
CDC924DLG4 Texas Instruments
IC 133-MHZ CLOCK SY...
4,380
In-stock
Inquiry
CDC924DLR Texas Instruments
IC 133-MHZ CLOCK SY...
5,430
In-stock
Inquiry
CDC924DLRG4 Texas Instruments
IC 133-MHZ CLOCK SY...
6,030
In-stock
Inquiry
CDC925DLR Texas Instruments
IC 133-MHZ CLOCK SY...
5,860
In-stock
Inquiry
CDC925DLRG4 Texas Instruments
IC 133-MHZ CLOCK SY...
3,190
In-stock
Inquiry
CDC960DLG4 Texas Instruments
IC CLOCK DRVR 200 M...
4,410
In-stock
Inquiry
CDC960DLR Texas Instruments
IC CLOCK DRVR 200 M...
4,460
In-stock
Inquiry
CDC960DLRG4 Texas Instruments
IC CLOCK DRVR 200 M...
1,100
In-stock
Inquiry
CDCF2509PWG4 Texas Instruments
IC 3.3V PLL CLOCK-D...
5,130
In-stock
Inquiry
CDCF2509PWRG4 Texas Instruments
IC 3.3V PLL CLOCK-D...
7,330
In-stock
Inquiry
CDCF2510PWG4 Texas Instruments
IC 3.3V PLL CLK-DRV...
6,270
In-stock
Inquiry
CDCF2510PWRG4 Texas Instruments
IC 3.3V PLL CLK-DRV...
1,380
In-stock
Inquiry
CDCFR83ADBQG4 Texas Instruments
IC CLOCK GENERAT...
1,080
In-stock
Inquiry
CDCFR83ADBQRG4 Texas Instruments
IC CLOCK GENERAT...
7,260
In-stock
Inquiry
CDCFR83DBQG4 Texas Instruments
IC CLOCK GENERAT...
4,080
In-stock
Inquiry
CDCFR83DBQRG4 Texas Instruments
IC CLOCK GENERAT...
4,600
In-stock
Inquiry
CDCR61APWRG4 Texas Instruments
IC DIRECT RAMBUS...
2,770
In-stock
Inquiry
CDCR81DBQRG4 Texas Instruments
IC DIRECT RAMBUS...
6,070
In-stock
Inquiry
CDCR83ADBQG4 Texas Instruments
IC DIRECT RAMBUS...
7,030
In-stock
Inquiry