Kinetis is a low power, mixed signal microcontroller based on the ARM® CortexTM-M4 with extreme scalability. The first phase of products consists of five microcontroller series, including over two hundred devices, which are pin, peripheral, and software compatible. Each series provides different performance, memory and peripheral features. Consistency of common peripherals, memory mapping and package enables easy migration within and across the series. Kinetis microcontrollers are based on Freescale’s innovative 90 nanometer thin film storage (TFS) flash technology with a unique Flex Memory (configurable embedded EEPROM). Kinetis microcontroller series incorporates latest low power innovation technologies, with high performance, high precision mixed signal capability, wide connectivity, human machine interfaces and security peripherals. Freescale and many other ARM third party application vendors provide Kinetis microcontroller application support.
The document introduces the K20 series of Kinetis microcontrollers, built on an ARM Cortex‑M4 core with DSP instructions and a flexible FlexNVM/ FlexRAM architecture. It describes the product family, core capabilities, memory options, low‑power modes, and supported development environments such as Freescale’s tower system, CodeWarrior, and the MQX RTOS.
It also lists the common characteristics of the K20 family, including voltage ranges, temperature limits, flash sizes, peripheral sets (ADC, DAC, timers, communication interfaces), packaging options, and revision history. Detailed tables give the memory configurations, package codes, and feature differences across the various device variants. This manual is written in Chinese.
| Core | ARM Cortex‑M4 with DSP instructions |
|---|---|
| Voltage range | 1.71 V – 3.6 V |
| Flash programming voltage | 1.71 V (minimum) |
| Operating temperature | -40 °C to 105 °C |
| Flash memory size | 32 KB – 1 MB |
| DMA channels | up to 32 |
| CPU frequencies | 50 MHz, 72 MHz, 100 MHz (higher versions 120 MHz, 150 MHz) |
| Analog peripherals | 16‑bit ADC, 12‑bit DAC, programmable gain amp, high‑speed comparator |
The K20 series uses a 32‑bit ARM Cortex‑M4 core with DSP instructions.
It provides ten low‑power operation modes, including low‑leak wakeup units and low‑power timers.