K21_50: Kinetis K21-50 MHz, Full-Speed USB, Anti-Tamper Microcontrollers based on ARM® Cortex®-M4
Kinetis® K21_50 MCUs Block Diagram
Analog to Digital Converter
Programmable Delay Block
System Integration Module
Nested Vector Interrupt Controller
Serial Audio Interface
Recommended Documentation (3)
| Name/Description | Type | Modified Date |
|---|---|---|
| Kinetis® K2x MCU Family - Fact Sheet (REV 10) PDF (373.5 kB) KINK2XFS | Fact Sheets | 07 Jul 2016 |
| Selector Guide: High-performance Kinetis® K Series MCUs (REV 1) PDF (2.4 MB) KINETISKMCUSELGD | Selector Guides | 02 Oct 2015 |
| Demonstration software for Kinetis® peripheral modules (REV 3) PDF (2.0 MB) KQRUG | Quick Reference Guides | 30 May 2014 |
Data Sheets (4)
| Name/Description | Modified Date |
|---|---|
| Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (121pin) (REV 6) PDF (1.0 MB) K21P121M50SF4V2 | 15 Nov 2014 |
| Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (80 pin) (REV 6) PDF (996.8 kB) K21P80M50SF4V2 | 15 Nov 2014 |
| Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (121pin) (REV 4) PDF (1.9 MB) K21P121M50SF4 | 08 Aug 2013 |
| Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (80 pin) (REV 4.1) PDF (1.8 MB) K21P80M50SF4 | 08 Aug 2013 |
Errata (3)
| Name/Description | Modified Date |
|---|---|
| Errata Mask 1N89E for Kinetis® MCUs (REV 31 JAN 2014) PDF (300.4 kB) KINETIS_1N89E | 06 Feb 2014 |
| Errata Mask 0N62J for Kinetis® MCUs (REV 10DEC2013) PDF (255.5 kB) KINETIS_0N62J_ | 05 Feb 2014 |
| Errata Mask 0N89E for Kinetis® MCUs (REV 07 AUG 2013) PDF (160.6 kB) KINETIS_0N89E | 16 Aug 2013 |
Application Notes (48)
Reference Manuals (4)
| Name/Description | Modified Date |
|---|---|
| Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (121pin) (REV 6) PDF (10.2 MB) K21P121M50SF4V2RM | 15 Nov 2014 |
| Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (80 pin) (REV 6) PDF (10.1 MB) K21P80M50SF4V2RM | 15 Nov 2014 |
| Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (121pin) (REV 4) PDF (11.0 MB) K21P121M50SF4RM | 08 Feb 2013 |
| Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (80 pin) (REV 4) PDF (10.8 MB) K21P80M50SF4RM | 08 Feb 2013 |
Users Guides (1)
| Name/Description | Modified Date |
|---|---|
| TWR-K21D50M Tower® Module User's Guides (REV 2) PDF (736.8 kB) TWRK21D50MUM | 27 Jan 2015 |
Product Briefs (1)
| Name/Description | Modified Date |
|---|---|
| Kinetis® K2x: Cortex-M4(F) MCUs with cost-optimized USB (REV 11) PDF (1.5 MB) K20PB | 01 Aug 2012 |
Engineering Bulletins (1)
| Name/Description | Modified Date |
|---|---|
| Kinetis® K11D/K22D 50MHz: rev1.1 vs 2 (part # with "A") (REV 0) PDF (153.2 kB) EB800 | 13 Mar 2014 |
Fact Sheets (1)
| Name/Description | Modified Date |
|---|---|
| Kinetis® K2x MCU Family - Fact Sheet (REV 10) PDF (373.5 kB) KINK2XFS | 07 Jul 2016 |
Brochures (2)
| Name/Description | Modified Date |
|---|---|
| Brochure: Kinetis® MCUs - Securing the Internet of Tomorrow (REV 2) PDF (1.8 MB) BRKINETISSECSOLS | 17 Jun 2015 |
| Kinetis® K1x/K2x (50Mhz) for cost sensitive applications (REV 2) PDF (2.7 MB) BRKINETISELS | 21 Feb 2013 |
Selector Guides (1)
| Name/Description | Modified Date |
|---|---|
| Selector Guide: High-performance Kinetis® K Series MCUs (REV 1) PDF (2.4 MB) KINETISKMCUSELGD | 02 Oct 2015 |
Quick Reference Guides (1)
| Name/Description | Modified Date |
|---|---|
| Demonstration software for Kinetis® peripheral modules (REV 3) PDF (2.0 MB) KQRUG | 30 May 2014 |
Calculators
- TFS FlexMem Endurance Calculator (REV vBeta025) ZIP TFS_FLEXMEM_CALCULATOR 8/1/2014
Snippets, Boot Code, Headers, Monitors, etc.
- K11_K21_50MHz_Rev2_Header_Files (REV 2) ZIP K11_K21_50MHz_Rev2_Header_Files 1/31/2015
Updates and Patches
- PExDrv v10.2 Update 1.0.2 (REV 1.0.2) ZIP PExDrv v10.2 Update 1.0.2 10/11/2013
Ordering Information
| Product | Status | Status | Budgetary Price excluding tax(US$) | HW dev. tools | Core Type | Floating Point Unit | Operating Frequency (Max) (MHz) | Cache (KB) | On-chip SRAM (KB) | Total Flash (KByte) | Internal RAM (KB) | EEPROM (KB) | External memory & connectivity interfaces | UART | SPI | I2C | USB | USB features | CAN | GPIOs | ADC | DAC | 16-bit PWM (ch) | 16-bit Timer (ch) | 32-bit Timer (ch) | Other analog blocks | Security | Human Machine Interface | VDD (min) | VDD (max) (V) | Package type | Pin count | Package dimension (WxLxH) (mm3) | Pin pitch (mm) | Ambient Operating Temperature (Min-Max) (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MK21DX128AVLK5 | Active | 10K @ US$2.70 | TWR-K21D50M | ARM Cortex-M4 | 50 | 36 | 192 | 4 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 56 | 16-bit (SAR) x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | LQFP | 80 | 12x12x1.6 | 0.5 | -40 to 105 | ||||||||
| MK21DN512AVMC5 | Active | 10K @ US$3.65 | TWR-K21D50M | ARM Cortex-M4 | 50 | 64 | 512 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 64 | 16-bit (SAR) x 1 | 12-bit x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | MAPBGA | 121 | 8x8x1.5 | 0.65 | -40 to 105 | ||||||||
| MK21DX128AVMC5 | Active | 10K @ US$2.90 | TWR-K21D50M | ARM Cortex-M4 | 50 | 36 | 192 | 4 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 64 | 16-bit (SAR) x 1 | 12-bit x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | MAPBGA | 121 | 8x8x1.5 | 0.65 | -40 to 105 | |||||||
| MK21DX256AVMC5R | Active | 10K @ US$3.24 | 121 | ||||||||||||||||||||||||||||||||
| MK21DN512AVLK5 | Active | 10K @ US$3.45 | TWR-K21D50M | ARM Cortex-M4 | 50 | 64 | 512 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 56 | 16-bit (SAR) x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | LQFP | 80 | 12x12x1.6 | 0.5 | -40 to 105 | |||||||||
| MK21DN512AVMC5R | Active | 10K @ US$3.65 | 121 | ||||||||||||||||||||||||||||||||
| MK21DX256AVLK5 | Active | 10K @ US$3.04 | TWR-K21D50M | ARM Cortex-M4 | 50 | 36 | 320 | 4 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 56 | 16-bit (SAR) x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | LQFP | 80 | 12x12x1.6 | 0.5 | -40 to 105 | ||||||||
| MK21DX256AVMC5 | Active | 10K @ US$3.24 | TWR-K21D50M | ARM Cortex-M4 | 50 | 36 | 320 | 4 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 64 | 16-bit (SAR) x 1 | 12-bit x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | MAPBGA | 121 | 8x8x1.5 | 0.65 | -40 to 105 | |||||||
| MK21DX256VMC5 | Not Recommended for New Design | 10K @ US$3.24 | TWR-K21D50M | ARM Cortex-M4 | 50 | 36 | 320 | 4 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 64 | 16-bit (SAR) x 1 | 12-bit x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | MAPBGA | 121 | 8x8x1.5 | 0.65 | -40 to 105 | |||||||
| MK21DX128VMC5 | Not Recommended for New Design | 10K @ US$2.90 | TWR-K21D50M | ARM Cortex-M4 | 50 | 36 | 192 | 4 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 64 | 16-bit (SAR) x 1 | 12-bit x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | MAPBGA | 121 | 8x8x1.5 | 0.65 | -40 to 105 | |||||||
| MK21DX256VLK5 | Not Recommended for New Design | 10K @ US$3.04 | TWR-K21D50M | ARM Cortex-M4 | 50 | 36 | 320 | 4 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 56 | 16-bit (SAR) x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | LQFP | 80 | 12x12x1.6 | 0.5 | -40 to 105 | ||||||||
| MK21DN512VMC5 | Not Recommended for New Design | 10K @ US$3.65 | TWR-K21D50M | ARM Cortex-M4 | 50 | 64 | 512 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 64 | 16-bit (SAR) x 1 | 12-bit x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | MAPBGA | 121 | 8x8x1.5 | 0.65 | -40 to 105 | ||||||||
| MK21DX128VLK5 | Not Recommended for New Design | 10K @ US$2.70 | TWR-K21D50M | ARM Cortex-M4 | 50 | 36 | 192 | 4 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 56 | 16-bit (SAR) x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | LQFP | 80 | 12x12x1.6 | 0.5 | -40 to 105 | ||||||||
| MK21DN512VLK5 | Not Recommended for New Design | 10K @ US$3.45 | TWR-K21D50M | ARM Cortex-M4 | 50 | 64 | 512 | 4 | 2 | 2 | 1 (FS) | Device Charge Detect | 56 | 16-bit (SAR) x 1 | 12 | 13 | 4 | Comparator | CRC, Cryptography Accelerator, RNG, Tamper Detection | 1.71 | 3.6 | LQFP | 80 | 12x12x1.6 | 0.5 | -40 to 105 |
Package Information
| Package Description | Outline Version | Packing | Product Status | Part Number | Chemical Content | RoHS / Pb FreeChina RoHS Lookup | MSL | PPT (°C) |
|---|---|---|---|---|---|---|---|---|
| LQFP 80 12*12*1.4P0.5 | 98ASS23174W | MPQ - 480 BRICKPOQ - 960 BOX | Active | MK21DX128AVLK5 | MK21DX128AVLK5.pdf |   | 3 | 260 |
| MPQ - 480 BRICKPOQ - 960 BOX | Active | MK21DX256AVLK5 | MK21DX256AVLK5.pdf | | 3 | 260 | ||
| MPQ - 96 TRAYPOQ - 960 BOX | Active | MK21DN512AVLK5 | MK21DN512AVLK5.pdf | | 3 | 260 | ||
| MPQ - 480 BRICKPOQ - 480 BOX | Not Recommended for New Design | MK21DN512VLK5 | MK21DN512VLK5.pdf | | 3 | 260 | ||
| MPQ - 480 BRICKPOQ - 960 BOX | Not Recommended for New Design | MK21DX128VLK5 | MK21DX128VLK5.pdf | | 3 | 260 | ||
| MPQ - 480 BRICKPOQ - 960 BOX | Not Recommended for New Design | MK21DX256VLK5 | MK21DX256VLK5.pdf | | 3 | 260 | ||
| MAPBGA 121 8*8*1.4 P0.65 | 98ASA00423D | MPQ - 348 TRAYPOQ - 1740 BOX | Active | MK21DX128AVMC5 | MK21DX128AVMC5.pdf | | 3 | 260 |
| MPQ - 348 TRAYPOQ - 1740 BOX | Active | MK21DX256AVMC5 | MK21DX256AVMC5.pdf | | 3 | 260 | ||
| MPQ - 348 TRAYPOQ - 1740 BOX | Active | MK21DN512AVMC5 | MK21DN512AVMC5.pdf | | 3 | 260 | ||
| MPQ - 2000 REELPOQ - 2000 BOX | Active | MK21DN512AVMC5R | MK21DN512AVMC5R.pdf | | 3 | 260 | ||
| MPQ - 2000 REELPOQ - 2000 BOX | Active | MK21DX256AVMC5R | MK21DX256AVMC5R.pdf | | 3 | 260 | ||
| MPQ - 1740 BRICKPOQ - 1740 BOX | Not Recommended for New Design | MK21DN512VMC5 | MK21DN512VMC5.pdf | | 3 | 260 | ||
| MPQ - 348 TRAYPOQ - 1740 BOX | Not Recommended for New Design | MK21DX128VMC5 | MK21DX128VMC5.pdf | | 3 | 260 | ||
| MPQ - 1740 BRICKPOQ - 1740 BOX | Not Recommended for New Design | MK21DX256VMC5 | MK21DX256VMC5.pdf | | 3 | 260 |
- Errata Mask 1N89E for Kinetis® MCUs K22_50
- Errata Mask 0N62J for Kinetis® MCUs K22_50
- Errata Mask 0N89E for Kinetis® MCUs K22_50
- AN5233, Isolator Board for In-Circuit Debugging & Programming tools of NXP® MCUs & MPUs - Application... S08SL
- FFT-Based Algorithm for Metering Applications - Application Note MCF51EM
- Power Management for Kinetis® and ColdFire®+ MCUs mcf51qx
- Power supply options for Tower® development plaftorm kw2xd
- Optimizing performance on Kinetis® K-series MCUs K70_120
- Production Flash programming best practices for Kinetis® K and L MCUs kl8x
- Cookbook for SAR ADC measurements kv4x
- Tips using PDB in motor control applications on Kinetis® kv4x
- I2C non-blocking communication 56f803x
- Developer’s Serial Bootloader S08SL
- An I2S application on Kinetis® kl4x
- Using DSPI as Slave on MQX RTOS (v3.8) K70_120
- Integrating a Processor Expert® driver (LDD) into a non-PEx project kl8x
- Connecting Kinetis® MCU with CMOS sensor interface through GPIO K70_120
- PMSM electrical parameters measurement MPC5567
- Implementing in-software flash programming on Kinetis® MCUs MCF51QE
- Using NXP® USB stack to implement Audio class device kl8x
- I2C driver based on interrupt and blocking mechanism for MQX kv4x
- USB Mass Storage Device (MSD) Host Bootloader S08JS
- MQX Board Support Package (BSP) - Porting Guide on KEIL K70_120
- Secure Bootloader implementation MCF5441X
- BLDC Sensorless Algorithm Tuning kv4x
- USB device firmware update (DFU) for Kinetis® MCUs S08JM
- Using Kinetis® DMA and GPIO to emulate timer functionality kw2xd
- Using DMA to emulate ADC flexible scan mode on Kinetis® K K70_120
- NXP® Embedded Software and Motor Control libraries 56f803x
- Understanding the 16-bit ADC PGA in Kinetis® K Series kv4x
- PWM synchronization using Kinetis® Flextimers kv4x
- Using Kinetis® Security and Flash Protection Features kv3x
- Motor Control under MQX RTOS MCF5441X
- Using FlexBus Interface for Kinetis® Microcontrollers K70_120
- I2S (Inter-IC Sound Bus) application on Kinetis® MCUs kl4x
- Pulse Oximeter using USB PHDC K70_120
- Using Low Power modes on Kinetis® MCUs kl8x
- Audio Output for Kinetis® MCUs using DMA/PWM, DAC or I2S kl8x
- Display eGUI using TWR-LCD board MCF5445X
- Configuring the FlexTimer for position and speed measurement mcf51qx
- Kinetis® KwikStik-based EzPort programmer K70_120
- FlexTimer and ADC synchronization for Field-Oriented-Control mc56f800x
- Prototyping with Tower® System MCU development board kw2xd
- BLDC motor control w/ Hall Effect sensor - Kinetis® MCUs kv4x
- Using WinUSB with MCU integrating USB device controller S08JS
- USB Mass Storage Device (MSD) Bootloader S08JS
- Implement protocol converters w/ MQX communication driver K70_120
- Using I2C on Coldfire+ and Kinetis® MCUs mcf51qx
- Using USB2SER DLL in C# Projects kl4x
- Using the CAU/mmCAU in ColdFire® and Kinetis® families MCF5445X
- Using Kinetis® FlexMemory as enhanced EEPROM K70_120
- Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (121pin) K21_50
- Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (80 pin) K21_50
- Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (121pin) K21_50
- Kinetis® K21: 50MHz Cortex-M4 up to 512KB Flash (80 pin) K21_50
- TWR-K21D50M Tower® Module User's Guides K22_50
- Kinetis® K2x: Cortex-M4(F) MCUs with cost-optimized USB K22_50
- Kinetis® K11D/K22D 50MHz: rev1.1 vs 2 (part # with "A") K21_50
- Kinetis® K2x MCU Family - Fact Sheet K26_180
- Brochure: Kinetis® MCUs - Securing the Internet of Tomorrow K82_150
- Kinetis® K1x/K2x (50Mhz) for cost sensitive applications K22_50
- Selector Guide: High-performance Kinetis® K Series MCUs K82_150
- Demonstration software for Kinetis® peripheral modules K82_150
- TFS FlexMem Endurance Calculator K53_100
- K11_K21_50MHz_Rev2_Header_Files K21_50
- PExDrv v10.2 Update 1.0.2 K53_100
- 98ASS23174W K51_72
- MK21DX128AVLK5.pdf K21_50
- MK21DX256AVLK5.pdf K21_50
- MK21DN512AVLK5.pdf K21_50
- MK21DN512VLK5.pdf K21_50
- MK21DX128VLK5.pdf K21_50
- MK21DX256VLK5.pdf K21_50
- 98ASA00423D K51_72
- MK21DX128AVMC5.pdf K21_50
- MK21DX256AVMC5.pdf K21_50
- MK21DN512AVMC5.pdf K21_50
- MK21DN512AVMC5R.pdf K21_50
- MK21DX256AVMC5R.pdf K21_50
- MK21DN512VMC5.pdf K21_50
- MK21DX128VMC5.pdf K21_50
- MK21DX256VMC5.pdf K21_50
