Obsolete MEMS clock — sourcing reality for the BOM line
The DSC6021CI2A-00A3T: For BOM lines that still require this exact order code, we source it through independent distribution channels — availability and pricing are confirmed at RFQ time against your quantity.
The DSC6021CI2A-00A3T delivers two independent CMOS clock outputs: 6.1298 MHz and 6.1679 MHz. These are not user-programmable — the frequencies are fixed at the factory, so the part serves applications that need two specific clock rates from a single oscillator package. That is tight enough for most UART, SPI, and general-purpose clocking; for precision timing (USB full-speed, CAN) the ppm budget should be checked against the system requirement.
MEMS resonator — reflow and shock tolerance
That means the DSC6021CI2A-00A3T handles higher shock and vibration levels than a typical crystal oscillator — relevant for portable, automotive, or industrial equipment subject to mechanical stress. It also eliminates the quartz startup time; the output is valid within microseconds of power-up.