Ultra-low-power
MCUs with
USB OTG
Kinetis
®
KL2x MCU Family
The Kinetis KL2x family of MCUs based on ARM
®
Cortex
®
-M0+ cores combines ultra-
low-power performance with a rich suite of analog, communication, timing and control
peripherals, including a USB 2.0 On-The-Go controller.
TARGET APPLICATIONS
}
Battery-operated applications
}
Consumer applications
}
Low-power applications
}
USB peripherals
Family members start from 32 KB of flash in a small 3.5 x
3.5 mm
2
XFBGA package, extending up to 512 KB in a 121
MAPBGA package. The KL2x MCU family is compatible
with the Cortex-M4-core-based Kinetis K20 MCU family,
offering a migration path to higher performance and
feature integration.
FEATURES
Ultra-Low-Power
}
Next-generation 32-bit Cortex-M0+ core with two times
more CoreMarks
®
/mA than the closest 8-/16-bit architecture
}
Single-cycle fast I/O access port facilitates bit banging
and software protocol emulation, maintaining an 8-bit
'look and feel'
}
Multiple flexible low-power modes, including new
compute mode which reduces dynamic power by placing
peripherals in an asynchronous stop mode
}
LPUART, SPI, I
2
C, Flex
™
I/O, ADC, DAC, LP timer and DMA
support low-power mode operation without waking up the core
Memory
}
Up to 512 KB flash with 64-byte flash cache, up to
128 KB RAM
}
16 to 32 KB ROM with integrated bootloader
}
Security circuitry to prevent unauthorized access to RAM and
flash contents
Performance
}
Cortex-M0+ core running at up to 72 MHz (up to 96 MHz
for high-speed run) over full voltage and temperature range
(–40 ˚C +105 ˚C)
}
Bit manipulation engine for improved bit handling of
peripheral modules
}
Thumb
®
instruction set combines high code density with
32-bit performance
}
4–8 channel DMA for peripheral and memory servicing with
reduced CPU loading and faster system throughput
}
Independent-clocked COP guards against clock skew or
code runaway for fail-safe applications
Mixed signal
}
Up to 16-bit ADC with configurable resolution, sample
time and conversion speed/power. Integrated temperature
sensor. Single or differential input mode operation in order
to achieve improved noise rejection
}
High-speed comparator with internal 6-bit DAC
}
12-bit DAC with DMA support
}
1.2 V high-accuracy internal voltage reference
Timing and control
}
One six-channel and two 2-channel,16-bit low-power timer
PWM modules with DMA support
}
Two-channel 32-bit periodic interrupt timer provides time
base for RTOS task schedule or trigger source for ADC
conversion
}
Low-power timer allows operation in all power modes
except for VLLS0
}
Real-time clock
HMI
}
Capacitive touch sense interface supports up to 16 external
electrodes and DMA data transfer
}
GPIO with pin interrupt support, DMA request capability
and other pin control options
Connectivity and communications
}
USB 2.0 On-The-Go (full-speed) integrated USB low-voltage
regulator supplies up to 120 mA off chip at 3.3 volts to
power external components from five-volt input
}
Three I
2
C with DMA support, up to 1 Mbit/s and compatible
with SMBus V2 features
}
Three UART with up to three LPUART, and DMA support
}
Three SPI with DMA support
}
I
2
S module for audio applications
}
Flex-IO with capability of emulating multiple serial interface,
such as IrDA, UART, SPI, I
2
C, etc.
Software and Tools
}
Freedom Development Platforms and Tower
®
System board
}
Kinetis software development kit (SDK)
}
Integrated development environment (IDE)
– Kinetis design studio IDE
– CodeWarrior
®
for microcontrollers V10.x (Eclipse) IDE with
Processor Expert
®
software modeling tool
– IAR
®
Embedded Workbench, ARM
®
Keil
®
MDK, Atollic
}
Runtime software and RTOS
– FreeRTOS
™
}
Full ARM ecosystem support
}
Online enablement with ARM mbed
™
development platform
KINETIS KL2X MCU FAMILY BLOCK DIAGRAM
KINETIS KL2x MCU FAMILY BLOCK DIAGRAM
Core
ARM
®
Cortex
®
-M0+ core up to 72 MHz
(up to 96 MHz for high-speed run)
Single Wire
Debug
Interrupt
Controller
Power
Management
Controller
System
Bit Manipulation
Engine
Memory
Program Flash
32–512 KB
SRAM
4–128 KB
Clocks
High Accuracy
60 M/48 MHz IRC
Low-Speed IRC
8 M/2 MHz or
4 M/32 kHz
PLL/FLL
Low-/High-Frequency
Oscillators
1 kHz LPO
DMA
Internal
Watchdogs
32-Byte
Register File
BOOTROM
16–32 KB
Micro Trace Buffer
Low-Leakage Wakeup
Security and Integrity
Cyclic
Redundancy
Check (CRC)
Flash Access
Controller
Analog
16-bit SAR ADC
2 x High-Speed ACMP
Timers
1 x 6-ch. Timer/PWM
2 x 2-ch. Timer/PWM
2 x Low-Power Timer
Independent RCT
4-ch. Periodic
Interrupt Timers
Communication Interfaces
3 x Low-Power
I
2
C
3 x LPUART
3 x Low-Power
SPI
ISO7816-E
VMSIM
Flex™ I/O
Crystal-less
USB FS
Device/OTG
USB Voltage
Regulator
Serial Audio
Interface/I
2
S
HMI
GPIOs
with Interrupts
MMCAU
True Random
Number
Generator
12-bit DAC
Unique ID
V
REF
16-ch. Touch
Sensor
Interface
Optional
KINETIS KL2x MCU FAMILY OPTIONS
Memory
Features
FM
FT
DA
√ Package
AL
LH
LK
LL
MP
MC
121 MAPBGA (8 x 8, 0.65 mm)
-
-
-
-
-
-
-
√
√
-
-
-
-
-
36WLCSP (2.4 x 2.5, 0.35 mm)
36X FBGA (3.5 x 3.5, 0.5 mm)
Flash (KB)
KL24
MKL24Z32xxx4
MKL24Z64xxx4
48 MHz
48 MHz
48 MHz
48 MHz
48 MHz
48 MHz
48 MHz
48 MHz
48 MHz
48 MHz
32
64
32
64
128
32
64
128
256
32
4
8
4
8
16
4
8
16
32
8
√
√
√
√
√
√
√
√
√
√
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
1
-
-
-
-
-
-
-
-
-
1
2
2
2
2
2
2
2
2
2
2x
16
bit
2x
16
bit
2x
16
bit
2x
16
bit
3
2
2
2
2
2
2
2
2
2
2
-
-
√
√
√
√
√
√
√
-
-
-
-
-
-
√
√
√
√
-
-
-
-
-
-
-
-
-
-
√
√
√
√
√
√
√
√
√
√
√
-
-
√
√
√
√
√
√
√
-
-
√
√
√
√
√
√
√
√
√
√
-
-
-
-
-
-
-
-
23~66
23~66
23~66
23~66
23~66
23~50
23~50
23~80
50~80
23~50
USB 2.0 FS OTG/ √
Host/Device
USB 2.0 FS OTG/ √
Host/Device
USB 2.0 FS OTG/ √
Host/Device
USB 2.0 FS OTG/ √
Host/Device
USB 2.0 FS OTG/ √
Host/Device
USB 2.0 FS OTG/ √
Host/Device
USB 2.0 FS OTG/ √
Host/Device
USB 2.0 FS OTG/ √
Host/Device
USB 2.0 FS OTG/ -
Host/Device
USB 2.0 FS
Device, with
crystal-less USB
USB 2.0 FS
Device, with
crystal-less USB
USB 2.0 FS
Device, with
crystal-less USB
USB 2.0 FS
Device, with
crystal-less USB
Crystal-less USB,
Device Only
*
Other
UART
DMA
RTC
I2C
SPI
I2S
TSI
Part Number
Total I/Os
Flex IO
Sub-
Family
CPU
(MHz)
√
√
√
√
√
√
√
√
-
*
-
-
-
-
-
-
-
-
-
√
-
-
-
-
-
-
-
√
-
-
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
-
-
-
-
-
-
-
-
-
-
-
-
√
√
-
-
-
-
-
-
-
-
-
√
*
KL25
MKL25Z32xxx4
MKL25Z64xxx4
MKL25Z128xxx4
KL26
MKL26Z32xxx4
MKL26Z64xxx4
MKL26Z128xxx4
MKL26Z256xxx4
KL27
MKL27Z32xxx4
MKL27Z64xxx4
48 MHz
64
16
√
2
1
1
2
-
-
√
√
√
-
23~50
√
*
√
-
√
-
-
*
MKL27Z128xxx4
48 MHz
128
32
√
2
1
1
2
-
√
√
√
√
√
-
23~50
√
√
-
-
√
-
-
√
MKL27Z256xxx4
48 MHz
256
32
√
2
1
1
2
-
√
√
√
√
√
-
23~50
√
√
-
-
√
-
-
√
KL28
MKL28Z512xxx7
72 MHz
( up to
96 MHz)
512
128 8
3
3
1
3
√
1
√
√
√
√
√
82
-
-
-
-
-
-
√
-
* This package is included in a Package Your Way program for Kinetis MCUs. Please visit
www.nxp.com/KPYW
for more detail.
www.nxp.com/Kinetis/Lseries
NXP, the NXP logo, the Energy Efficient Solutions logo, Freescale, CodeWarrior, Kinetis, Processor Expert and Tower are
trademarks of NXP B.V. All other product or service names are the property of their respective owners. ARM, Cortex and Keil are
registered trademarks of ARM Limited (or its subsidiaries) in the EU and/or elsewhere. All rights reserved. © 2014–2016 NXP B.V.
DocumentNumber: LSERIESKL2xFS Rev 10
64 MAPBGA (5 x 5, 0.5 mm)
100 LQFP (14 x 14, 0.5 mm)
64 LQFP (10 x 10, 0.5 mm)
80 LQFP (12 x 12, 0.5 mm)
16-bit ADC w/DP Ch.
32 QFN (5 x 5, 0.5 mm)
48 QFN (7 x 7, 0.5 mm)
Low-Power UART
12-bit DAC
12-bit ADC
SRAM (KB)
ISO7816-3
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