Datasheet

Table 5. K21 50MHz Performance Table 3 (continued)
MC Partnumber
MK21DX128VLK5(R) MK21DX256VLK5(R)
MK21DN512VLK5(R)
MK21DX128VMC5(R) MK21DX256VMC5(R)
MK21DN512VMC5(R)
High Baudrate UART w/ ISO7816 + LON 1 1 1 1 1 1
High Baudrate UART w/ ISO7816 0 0 0 0 0 0
High Baudrate UART 1 1 1 1 1 1
UART 2 2 2 2 2 2
SPI chip selects per module 5 / 3 / 0 5 / 3 / 0 5 / 3 / 0 5 / 3 / 0 5 / 3 / 0 5 / 3 / 0
I2C 2 2 2 2 2 2
I2S 1 1 1 1 1 1
I2S0 TX/RX 1 / 1 1 / 1 1 / 1 1 / 1 1 / 1 1 / 1
I2S1 TX/RX - - - - - -
CAN - - - - - -
USB OTG LS/FS w/ on-chip xcvr 1 1 1 1 1 1
USB OTG HS - - - - - -
USB DCD YES YES YES YES YES YES
USB 120mAReg YES YES YES YES YES YES
Ethernet w /1588 - - - - - -
IEEE1588 Timer - - - - - -
Human-Machine Interface
Segment LCD - - - - - -
Graphic LCD - - - - - -
TSI(Capacitive Touch) - - - - - -
GPIO (w interrupt) 56 56 56 64 64 64
5V Tolerant GPIOs - - - - - -
Operating Characteristics
5V Tolerant - - - - - -
Voltage Range 1.71-3.6V 1.71-3.6V 1.71-3.6V 1.71-3.6V 1.71-3.6V 1.71-3.6V
Flash Write V 1.71V 1.71V 1.71V 1.71V 1.71V 1.71V
Temp Range -40 to 105C -40 to 105C -40 to 105C -40 to 105C -40 to 105C -40 to 105C
Features
K20 Family Product Brief, Rev. 11, 08/2012
20 Freescale Semiconductor, Inc.