NXP Kinetis K20 series, 32-bit ARM Cortex-M4 MCU at 50MHz, 128KB Flash, 16KB SRAM, USB OTG, 13-ch 16-bit A/D, 40 I/O, 1.71–3.6V supply, -40 to 105°C, 64-LQFP (10×10mm) tray.
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Specifications
| Parameter | Value |
|---|---|
| Series | Kinetis K20 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.71V ~ 3.6V |
| Operating temperature | -40°C ~ 105°C (TA) |
| Speed | 50MHz |
| Package | Tray |
| RAM size | 16K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, I²S, LVD, POR, PWM, WDT |
| Connectivity | I²C, IrDA, SPI, UART/USART, USB, USB OTG |
| Number of i (O) | 40 |
| Core processor | ARM® Cortex®-M4 |
| Case | 64-LQFP |
| Data converters | A/D 13x16b |
| Program memory size | 128KB (128K x 8) |
Frequently asked questions
Does it drop into an existing Kinetis K20 64-LQFP footprint on a legacy PLC I/O board?
The 64-LQFP (10×10mm) package and the MK20DN128 base number indicate footprint compatibility with existing Kinetis K20 designs in this package — no pad or spacing respin is required for mechanical fit.
What supply voltage and temperature range does it cover?
The MCU runs from 1.71–3.6V and is rated for -40 to 105°C ambient. It does not support 5V rails directly — level-shifting or a separate 3.3V/1.8V regulator rail is required on boards that carry 5V elsewhere.
Is there an official second source or successor for this part?
No official cross-reference or NXP-listed successor order code appears in the current ledger for this MK20DN128 base number. For multi-year programs, securing an allocation commitment through an authorized channel is the recommended step before BOM lock.