If you are building a new board, pick a current-production Kinetis K2x or a pin-compatible Kinetis K6x part instead. For existing production or field repair, the MK20DX256ZVMC10 is still available through independent distribution; we source and quote it to order against an RFQ. No official NXP replacement order code is listed, so verify pin-compatibility with your layout before swapping to a different Kinetis variant.
Peripherals and I/O — what connects where
86 general-purpose I/O lines give you room for a parallel LCD, keypad matrix, and sensor inputs alongside the serial interfaces. The 38-channel 16-bit ADC and dual 12-bit DAC cover analog front-end duties without an external converter. DMA and I²S are on the peripheral list, so audio or high-speed data streaming is feasible within the 100 MHz core budget.
Supply and power — the rail story
Low-voltage detect and power-on reset are built in.