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The Kinetis KL1 MCU family is pin, software and tool compatible with all other Kinetis L MCU families and provides additional memory, communications and analog
peripheral options beyond those offered in the Kinetis KL0 MCU family. The Kinetis KL1 MCU family is also compatible with the Kinetis K10 MCU family (based on the ARM® Cortex™-M4 processor), providing a migration path to higher performance and feature integration.
Devices start from 32 KB of flash in a small-footprint 5 x 5 mm 32 QFN package extending up to 256 KB in an 80 LQFP package. Each combines ultra-low-power performance with a rich suite of analog, communication, timing and control peripherals.
Features
Ultra-Low-Power
- Next-generation 32-bit ARM Cortex-M0+ core: 2x more CoreMark/mA than the closest 8/16-bit architecture
- Single-cycle fast I/O access port facilitates bit banging and software protocol emulation, keeping an 8-bit "look and feel"
- Multiple flexible low-power modes, including new compute clocking option which reduces dynamic power by placing peripherals in an asynchronous stop mode
- LPSCI, SPI, I2C, ADC, DAC, LP timer and DMA support low-power mode operation without waking up the core
Flash, SRAM
- Up to 256 KB flash with 64 byte flash cache, up to 32 KB RAM
- Security circuitry to prevent unauthorized access to RAM and flash contents
Performance
- ARM Cortex-M0+ core, 48 MHz core frequency over full voltage and temperature range (-40ºC to +105ºC)
- Bit manipulation engine for improved bit handling of peripheral modules
- Thumb instruction set combines high code density with 32-bit performance
- Up to 4-ch. 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
- High-speed comparator with internal 6-bit DAC
- 12-bit DAC with DMA support
Timing and Control
- Two 6-ch. and one 2-ch. 16-bit low-power timer PWM modules with DMA support
- 2-ch., 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 with calendar
Human-Machine Interface
- 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
- Two I2C with DMA support, up to 100 kbps and compatible with SMBus V2 features
- One LPUART and two UART with DMA support
- Two SPI with DMA support
Energy Efficiency Quick Facts
- Built on the new ARM Cortex-M0+ processor - the most energy-efficient 32-bit processor on the market with industry leading throughput/mA
- Ultra-low power modes - several, flexible power modes fit for different application use cases designed to maximize battery life
- Energy-saving architecture - optimized for power with 90nm TFS technology, clock and power gating techniques, and highly efficient platform featuring a bit manipulation engine, peripheral bridge crossbar and zero wait state flash memory controller
- Energy-saving peripherals - smart peripherals with functionality in deep sleep modes can make intelligent decisions and process data without waking up the core
- Frees power-critical designs from 8- and 16-bit MCU limitations by combining excellent dynamic and stop currents with superior processing performance
- Learn more about Freescale energy-efficient product solutions.
Featured Documentation
- LSERIESKL1FS: Kinetis KL1 Family: Ultra-low-power, entry-level MCUs - Fact Sheet
- KL15PB: KL1 Family Product Brief
- KLQRUG: KLQRUG, Kinetis L Peripheral Module Quick Reference - User Guide
- KL15P80M48SF0: KL15 Sub-Family - Data Sheet
- KLSRSPRDSUMMAP: Kinetis L Series Product Summary Map - Brochure
- KL1_INFOCTR: KL General Purpose MCUs Infocenter—Online Documentation
Featured Software and Tools
- FRDM-KL25Z: Freescale Freedom Development Platform for Kinetis KL1x and KL2x MCUs
- TWR-KL25Z48M: Kinetis KL2 Tower System Module
- PE_DRIVER_SUITE: Processor Expert Software, Microcontroller Driver Suite
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