Frequency(MHz)  

Primary uses  

0.032768

Real-time clocks, quartz watches and clocks; allows binary division to 1 Hz signal (215×1 Hz)

1.8432

UART clock; allows integer division to common baud rates. (213×32×52; 16×115,200 baud or 96×16×1,200 baud)

2.4576

UART clock; allows integer division to common baud rates up to 38,400

3.2768

Allows binary division to 100 Hz (32,768×100 Hz, or 215×100 Hz)

3.575611

PAL M color subcarrier

3.579545

NTSC M color subcarrier. Because these are very common and inexpensive they are used in many other applications, for example DTMF generators

3.582056

PAL N color subcarrier

3.6864

UART clock (2×1.8432 MHz); allows integer division to common baud rates

4.096

Allows binary division to 1 kHz (212×1 kHz)

4.194304

Real-time clocks, divides to 1 Hz signal (222×1 Hz)

4.332

The RDS signal bit rate is at 1.1875 kbit/s. While the frequency of 4.332 MHz is the most commonly used crystal resonator, its multiples (2×4.332 MHz = 8.664 MHz or 4×4.332MHz = 17.328 MHz) have been used also.

4.43361875

PAL B/D/G/H/I and NTSC M4.43 color subcarrier

4.9152

Used in CDMA systems; divided to 1.2288 MHz baseband frequency as specified by J-STD-008

6.144

Digital audio systems - DAT, MiniDisc, sound cards; 128×48 kHz (27×48 kHz). Also allows integer division to common UART baud rates up to 38,400.

6.5536

Allows binary division to 100 Hz (65,536×100 Hz, or 216×100 Hz); used also in red boxes

7.15909

NTSC M color subcarrier (2×3.579545 MHz)

7.3728

UART clock (4×1.8432 MHz); allows integer division to common baud rates

8.86724

PAL B/G/H color subcarrier (2×4.433618 MHz)

9.216

Allows integer division to 1024 kHz and binary division to lower frequencies that are whole multiples of 1 Hz.

9.8304

Used in CDMA systems (2×4.9152 MHz); divided to 1.2288 MHz baseband frequency

10.245

Used in radio receivers; mixes with 10.7 MHz intermediate frequency (IF) yielding 455 kHz signal, a common second IF for FM radio[6]

11.0592

UART clock (6×1.8432 MHz); allows integer division to common baud rates

11.2896

Used in compact disc digital audio systems and CDROM drives; allows binary division to 44.1 kHz (256×44.1 kHz), 22.05 kHz, and 11.025 kHz

12

Used in USB systems as the reference clock for the full-speed PHY rate of 12 Mbit/s, or multiplied up using a PLL to clock high speed PHYs at 480 Mbit/s

12.288

Digital audio systems - DAT, MiniDisc, sound cards; 256×48 kHz (28×48 kHz). Also allows integer division to common UART baud rates up to 38400.

13.5

Master clock for PAL/NTSC DVD players, Digital TV receivers, etc. (13.5 MHz is an exact multiple of the PAL and NTSC line frequencies)

13.56

Common contactless smartcard frequency (ISO/IEC 14443)

13.875

Used in some teletext circuits; 2×6.9375 MHz (clock frequency of PAL B teletext; SECAM uses 6.203125 MHz, NTSC M uses 5.727272 MHz, PAL G uses 6.2031 MHz, and PAL I uses 4.4375 MHz clock)

14.31818

NTSC M color subcarrier (4×3.579545 MHz). Common seed clock for modern PC motherboard clock generator chips, also common on VGA cards.

14.7456

UART clock (8×1.8432 MHz); allows integer division to common baud rates

16.368

Commonly used for down-conversion and sampling in GPS-receivers. Generates intermediate frequency signal at 4.092 MHz. 16.3676 or 16.367667 MHz are sometimes used to avoid perfect lineup between sampling frequency and GPS spreading code.

16.9344

Used in compact disc digital audio systems and CDROM drives; allows integer division to 44.1 kHz (384×44.1 kHz), 22.05 kHz, and 11.025 kHz. Also allows integer division to common UART baud rates.

17.734475

PAL B/G/H color subcarrier (4×4.433618 MHz)

18.432

UART clock (10×1.8432 MHz); allows integer division to common baud rates. Also allows integer division to 48 kHz (384×48 kHz), 96 kHz, and 192 kHz sample rates used in high-end digital audio.

19.6608

Used in CDMA systems (4×4.9152); divided to 1.2288 MHz baseband frequency

20

10 Mbit/s ethernet

22.1184

UART clock (12×1.8432 MHz); allows integer division to common baud rates

24

LCD monitor some MCU

24.576

Digital audio systems - DAT, MiniDisc, AC'97, sound cards; 512×48 kHz (29×48 kHz)

25

Fast Ethernet MII clock (100 MHz/4-bit nibble)

25.175

Common Video Graphics Array pixel clock (i.e., 640x350@70 Hz,640x400@70 Hz, 640x480@60 Hz)[7]

26

Commonly used as a reference clock for GSM and UMTS handsets. (26 MHz is exactly 96 times the GSM bit rate)

27

Master clock for PAL/NTSC DVD players, Digital TV receivers etc. (27 MHz is an exact multiple of the PAL and NTSC line frequencies)

29.4912

UART clock (16×1.8432 MHz); allows integer division to common baud rates

33.33

common CPU clock

40

common CPU clock, WiFi, OFDM

50

Fast Ethernet (2×25 MHz)