4 MHz LVCMOS clock source with ±20 ppm stability
The DSC1502AI3A-4M000000T: This stability holds the clock edge jitter tight enough for UART baud-rate generation, SPI timing, and general-purpose MCU clocking without needing a TCXO.
The supply voltage range spans 2.5V to 3.3V, covering the common logic rails used in 3.3V and 2.5V systems without an extra regulator.
Microchip lists the DSC1502AI3A-4M000000T as Active.
4-VDFN exposed pad — layout and soldering note
The 4-VDFN exposed pad package (7.00 mm x 5.00 mm body, 0.90 mm seated height) requires a thermal land pattern on the PCB for proper heat dissipation and mechanical stability.
