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.
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.
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.
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.
| Image | Part | Manufacturer | Description | Stock | Action | |
|---|---|---|---|---|---|---|
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Diodes Incorporated | IC REAL TIME CLK ... |
3,280
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CAL I2C/2-WI... |
1,380
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC I2C SER 8SO... |
3,040
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CALENDAR 3... |
3,070
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CAL I2C/2-WI... |
5,250
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC REAL TIME CLK ... |
2,060
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CAL I2C/2-WI... |
7,520
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC I2C/2-WIRE S... |
2,430
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CLK/CALEND... |
2,600
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CAL I2C/2-WI... |
4,730
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CAL I2C/2-WI... |
6,930
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CAL I2C/2-WI... |
6,050
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CAL I2C/2-WI... |
2,560
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CLK/CALEND... |
2,260
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CLK/CALEND... |
1,620
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CLK/CALEND... |
4,330
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CLK/CALEND... |
5,920
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CLK/CALEND... |
1,580
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CLK/CALEND... |
3,170
In-stock
|
Inquiry | ||
|
Diodes Incorporated | IC RTC CLK/CALEND... |
3,110
In-stock
|
Inquiry |