This is an overview of all the Crystal Quartz Resonator frequencies I have available with a short description of use.
| Crystal Quartz Resonator 32.768 kHz (small) | Used in RTC circuits, the frequency 32768 Hz (32.768 KHz) is commonly used, because it is a power of 2 (215) value. And, you can get a precise 1 second period (1 Hz frequency) by using a 15 stage binary counter. |
| Crystal Quartz Resonator 1.8432 Mhz (high) | UART clock allows integer division to common baud rates up to 115,200(×16×1) or 230,400(×8×1). Since older UARTs used this frequency to derive common baud rates up to 115,200, then multiples of this frequency are able to do the same, such as 3.6864 / 5.5296 / 7.3728 / 9.216 / 11.0592 / 12.9024 / 14.7456 / 16.5888 / 18.432 / 20.2752 / 22.1184 / 23.9616 / 25.8048 / 27.648 / 29.4912 / 31.3344 / 33.1776 / 35.0208 / 36.864 / …, and is why these MHz frequencies are commonly used. |
| Crystal Quartz Resonator 2.4576 Mhz (high) | UART clock allows integer division to common baud rates up to 38,400(×16×4) or 76,800(×16×2). |
| Crystal Quartz Resonator 3 MHz (high) | – |
| Crystal Quartz Resonator 3.2768 MHz (high) | Allows binary division to 100 Hz (32,768×100 Hz, or 215×100 Hz) and to 50 Hz, used in e.g. wattmeters and DC-AC converters. |
| Crystal Quartz Resonator 3.579545 Mhz (High) | NTSC M color subcarrier; see colorburst. More specifically, 5 * 7 * 9 / 88 = 3.57954 MHz. Because these are very common and inexpensive they are used in many other applications, for example DTMF generators. Also used in some Retro Pinball machines. |
| Crystal Quartz Resonator 3.58 Mhz (low) | – |
| Crystal Quartz Resonator 3.6864 Mhz (High) Crystal Quartz Resonator 3.6864 Mhz (Low) | UART clock allows integer division to common baud rates up to 230,400(×16×1) or 460,800(×8×1). Also used in W-CDMA systems. |
| Crystal Quartz Resonator 4 Mhz (high) Crystal Quartz Resonator 4 Mhz (low) | – |
| Crystal Quartz Resonator 4.032 Mhz (low) | UART clock allows integer division to common baud rates up to 7,200(×16×35) or 14,400(×8×35), used for some 1200, 2400, and 4800 baud modems. |
| Crystal Quartz Resonator 4.096 Mhz (low) | Allows binary division to 1 kHz (212×1 kHz). Used in ISDN systems. |
| Crystal Quartz Resonator 4.1920 Mhz (High) | – |
| Crystal Quartz Resonator 4.194304 Mhz (high) Crystal Quartz Resonator 4.194304 Mhz (low) | allows binary division to 1 Hz and 32.768 kHz. Real-time clock. For DDS generators with 1 Hz step. Used in the original Game Boy. |
| Crystal Quartz Resonator 4.433619 MHz (High) | Used on original MK14 SC/MP board |
| Crystal Quartz Resonator 4.9152 Mhz (low) | Used in CDMA systems; divided to 1.2288 MHz baseband frequency as specified by J-STD-008. UART clock allows integer division to common baud rates up to 38,400(×16×8) or 76,800(×8×4). |
| Crystal Quartz Resonator 5 Mhz (high) | Common standard frequency. |
| Crystal Quartz Resonator 6 Mhz (low) | Common in low-speed (1.5 Mbit/s) USB devices such as computer keyboards. |
| Crystal Quartz Resonator 7.15909 Mhz (Low) | Used in old video cards & computers. |
| Crystal Quartz Resonator 7.3778 Mhz (low) | – |
| Crystal Quartz Resonator 8 Mhz (high) | Common used in old computers. |
| Crystal Quartz Resonator Mhz (low) | Allows binary division to 1 kHz (213×1 kHz). Used in ISDN systems. Used in OKI Speech Processor. Common audio clock, 256×32 kHz (see also 11.2896, 12.288, 16.384, 18.4323, 22.5792, 24.576 MHz). Typical TDM/PCM audio interface clock, 1/6 of 49.152 MHz |
| Crystal Quartz Resonator 9.8304 MHz (high) | Used in CDMA systems (2×4.9152 MHz); divided to 1.2288 MHz baseband frequency. UART clock allows integer division to common baud rates up to 38,400(×16×16) or 76,800(×8×16). |
| Crystal Quartz Resonator 10 Mhz (high) Crystal Quartz Resonator 10 Mhz (low) | – |
| Crystal Quartz Resonator 10.7386 Mhz (Low) | Used in old video cards & computers. |
| Crystal Quartz Resonator 11.0592 Mhz (high) Crystal Quartz Resonator 11.0592 Mhz (Low) | Common used in old computers and serial I/O chips. |
| Crystal Quartz Resonator 12 Mhz (high) Crystal Quartz Resonator 12 Mhz (low) | UART clock allows integer division to common baud rates up to 1,800(×16×450) or 7,200(×8×225) |
| Crystal Quartz Resonator 12.288 Mhz (low) | Digital audio systems – DAT, MiniDisc, sound cards; 256×48 kHz (28×48 kHz). UART clock allows integer division to common baud rates up to 76,800(×16×20) or 256,000(×16×3) |
| Crystal Quartz Resonator 12.960 MHz (high) | UART clock allows integer division to common baud rates up to 1,800(×16×450) or 7,200(×8×225) |
| Crystal Quartz Resonator 13.56 Mhz (high) Crystal Quartz Resonator 13.56 Mhz (low) | Common contactless smartcard frequency (ISO/IEC 14443). Also used as clock in some 433.92 MHz remote fob transmitters (multiplied by 32); 9.84375 MHz used for 315 MHz |
| Crystal Quartz Resonator 14.318 Mhz (low) | NTSC M color subcarrier (4×3.579545 MHz). Common seed clock for modern PC motherboard clock generator chips, clock for ISA bus, also common on CGA and VGA cards and in some 8-bit computers. Exactly 315/22 MHz. 4f(sc) sampling for NTSC or 525/60 (raw image size 910×525, visible 768×475), SMPTE 244M standard. |
| Crystal Quartz Resonator 14.7456 Mhz (low) | Common used in old computers as the frequency is ideal for generating video signals. |
| Crystal Quartz Resonator 16 Mhz (high) Crystal Quartz Resonator 16 Mhz (low) Crystal Quartz Resonator 16 Mhz (small) | Common used in old and new computers. Pixel clock for Hercules Graphics Card. Also used for ZigBee, Bluetooth and BLE, WiFi. |
| Crystal Quartz Resonator 16.3825 Mhz (low) | UART clock allows integer division to common baud rates up to 115,200(×16×1) or 230,400(×8×1). Since older UARTs used this frequency to derive common baud rates up to 115,200, then multiples of this frequency are able to do the same, such as 3.6864 / 5.5296 / 7.3728 / 9.216 / 11.0592 / 12.9024 / 14.7456 / 16.5888 / 18.432 / 20.2752 / 22.1184 / 23.9616 / 25.8048 / 27.648 / 29.4912 / 31.3344 / 33.1776 / 35.0208 / 36.864 / …, and is why these MHz frequencies are commonly used. |
| Crystal Quartz Resonator 18.432 Mhz (low) | UART clock allows integer division to common baud rates up to 230,400(×16×5) or 576,000(×16×2). Audio clock allows integer division for 48 / 96 / 192 ksps. Integer division for 50 Hz and 60 Hz. |
| Crystal Quartz Resonator 20 Mhz (low) Crystal Quartz Resonator 20 Mhz (low) | – |
| Crystal Quartz Resonator 21.32813 Mhz (high) | – |
| Crystal Quartz Resonator 22.1184 Mhz (Low) | UART clock allows integer division to common baud rates up to 460,800(×16×3) or 921600(×8×3). Twice the 11.0592 MHz frequency. |
| Crystal Quartz Resonator 22.33 Mhz (high) | – |
| Crystal Quartz Resonator 24 Mhz (high) Crystal Quartz Resonator 24 Mhz (Low) | – |
| Crystal Quartz Resonator 25 Mhz (low) | – |
| Crystal Quartz Resonator 30 Mhz (High) | Common CPU clock. |
| Crystal Quartz Resonator 32 Mhz (low) | Common CPU clock and common crystal for LoRa RF chips |
| Crystal Quartz Resonator 36 Mhz (high) | Video Graphics Array pixel clock (VESA modes VGA 640×480@85 with hsync 43.3 kHz, SVGA 800×600@56 with hsync 35.2 kHz.[28] Pixel clock for SDTV PAL/NTSC (FWVGA 960×480p@59.94, 960×576p@50). |