Datasheet

Table 5. K21 50MHz Performance Table 3 (continued)
MC Partnumber
MK21DX128VLK5(R) MK21DX256VLK5(R)
MK21DN512VLK5(R)
MK21DX128VMC5(R) MK21DX256VMC5(R)
MK21DN512VMC5(R)
RTC (32KHz Osc, Vbat) YES YES YES YES YES YES
RTC_CLKOUT YES YES YES YES YES YES
RTC_WAKEUP YES YES YES YES YES YES
Security and Integrity
Hardware Encryption YES YES YES YES YES YES
Tamper Detect YES YES YES YES YES YES
Number of External Tamper Pins 2 2 2 3 3 3
CRC YES YES YES YES YES YES
Analog
ADC0 (SE:single-ended, DP:differential
pair)
15ch SE +
3ch DP
15ch SE +
3ch DP
15ch SE +
3ch DP
15ch SE +
3ch DP
15ch SE +
3ch DP
15ch SE +
3ch DP
ADC1 - - - - - -
ADC2 - - - - - -
ADC3 - - - - - -
ADC DP 3 3 3 3 3 3
ADC SE 20 20 20 20 20 20
PGA - - - - - -
12-bit DAC - - - 1 1 1
Analog Comparator 2 2 2 2 2 2
Analog Comparator Inputs 5 / 4 / 0 / 0 5 / 4 / 0 / 0 5 / 4 / 0 / 0 5 / 4 / 0 / 0 5 / 4 / 0 / 0 5 / 4 / 0 / 0
OPAMP - - - - - -
TRIAMP - - - - - -
Vref NO NO NO NO NO NO
Timers
Motor Control/General purpose/PWM 1x8ch +
1x2ch
1x8ch +
1x2ch
1x8ch +
1x2ch
1x8ch +
1x2ch
1x8ch +
1x2ch
1x8ch +
1x2ch
Quad decoder/General purpose/PWM 1x2ch 1x2ch 1x2ch 1x2ch 1x2ch 1x2ch
FTM External CLK 2 2 2 2 2 2
Low Power Timer 1 1 1 1 1 1
PIT 1x4ch 1x4ch 1x4ch 1x4ch 1x4ch 1x4ch
PDB 1 1 1 1 1 1
CMT(Carrier Module Transmitter) YES YES YES YES YES YES
Communication Interfaces
SDHC - - - - - -
Table continues on the next page...
Features
K20 Family Product Brief, Rev. 11, 08/2012
Freescale Semiconductor, Inc. 19