12 MHz Crystal Oscillator

12 MHz Crystal Oscillator provides clock pulses of 12 MHz frequency, Used in USB 1.0 and 2.0 systems (with an accuracy of 500 ppm) 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; common clock for Intel 8051 microprocessors also used in CAN bus systems. Standard clock frequency for MCS-51 MCU's at 1MIPS. 

Specification