Kinetis^® K2x USB Microcontrollers (MCUs) Based on Arm^® Cortex^®-M4 Core

The K2x MCU family integrates cost-effective full-and high-speed USB 2.0 on-the-go (OTG) with device charge detect capability and crystal-less functionality.

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Products

Kinetis K2x USB MCUs

		CPU		Communications			Security
Sub-Families		Arm Cortex-M4	Memory	USB Controllers	I²S	CAN	RNG	Symmetric Crypto Accelerator	Anti-tamper
K28 Dual-USBs, Large Memory and PMC w/ Core Voltage Bypass	K28_150	150 MHz w/ FPU	2 MB Flash 1 MB SRAM SDRAM Controller QuadSPI XIP interface	2 x Full-Speed Crystal-Less + High-Speed w/ HS PHY	2
K27 Dual-USBs and Large Memory	K27_150	150 MHz w/ FPU	2 MB Flash 1 MB SRAM SDRAM Controller QSPI interface	2 x Full-Speed Crystal-Less + High-Speed w/ HS PHY	2
K26 Dual-USBs and Large Flash Memory	K26_180	180 MHz w/ FPU	2 MB Flash 256 KB SRAM SDRAM Controller	2 x Full-Speed Crystal-Less + High-Speed w/ HS PHY	1	2
K24 Cost-Effective and 256KB SRAM	K24_120	120 MHz w/ FPU	256 KB - 1 MB Flash 256 KB SRAM	1 x Full-Speed	1	1*		*
K22 Cost-Effective	K22_120	120 MHz w/ FPU	128 KB - 1 MB Flash 48 - 128 KB SRAM	1 x Full-Speed Crystal-Less*	1	1*	*
		K22_100	100 MHz w/ FPU	128 KB Flash 24 KB SRAM	1 x Full-Speed Crystal-Less	1	1*
		K22_50	50 MHz	192 - 512 KB Flash 32 - 64 KB SRAM	1 x Full-Speed	1	1*
K21 Advanced Security	K21_120	120 MHz w/ FPU	640 KB – 1 MB Flash 128 KB SRAM	1 x Full-Speed	1	1*
K21 Advanced Security		K21_50	50 MHz	192 - 512 KB Flash 32 - 64 KB SRAM	1 x Full-Speed	1	1*
K20 High Mixed-Signal Integration	K20_120	120 MHz w/ FPU	512 KB – 1 MB Flash 128 KB SRAM NAND Controller	2 x Full-Speed + High-Speed	2*	2*
		K20_100	100 MHz	256 - 512 KB Flash 32 - 128 KB SRAM	1 x Full-Speed	2*	2*
		K20_72	72 MHz	96 - 288 KB Flash 16 - 64 KB SRAM	1 x Full-Speed	2*	2*
		K20_50	50 MHz	32 - 160 KB Flash 8 - 16 KB SRAM	1 x Full-Speed	2*	2*
KS2X Cost-Effective 64KB RAM USB and dual CAN	KS20	120 MHz w/ FPU	128-256 KB Flash 64 KB SRAM	1 x Full-Speed Crystal-Less*	2	1		-	-
		KS22	120 MHz w/ FPU	128-256 KB Flash 64 KB SRAM	1 x Full-Speed Crystal-Less*	2	2		-	-

Kinetis KS22 MCUs

	CPU			Communications								Security
Products	Arm Cortex-M4	Memory	Packages	USB 2.0	LPUART	UART	SPI	I²S	CAN	LPI²C	FlexIO	CRC	RNGA	Analog
KS20	120 MHz	128-256 KB Flash 64KB SRAM	100LQFP, 64LQFP, 48QFN	OTG LS/FS w/ on chip PHY	1	3	2	2	1	2	1			16-bit ADC 12-bit DAC
KS22	120 MHz	128-256 KB Flash 64KB SRAM	100LQFP, 64LQFP, 48QFN	OTG LS/FS w/ on chip PHY	1	3	2	2	2	2	1			16-bit ADC 12-bit DAC

*Feature supported by a select subset family

RNG: Random Number Generator

Design Resources

MCUXpresso Software and Tools

Software

Unifying NXP's software enablement into one platform for a shared software experience across a broader set of Arm Cortex-M MCUs.

Additional Documents

Kinetis K2x USB MCU Family

The Kinetis K series MCU portfolio offers a broad selection of pin-, peripheral- and software-compatible MCU families based on the Arm Cortex-M4 core.