NXP Semiconductors KM1x 32-bit Microcontrollers
NXP Semiconductors KM1x 32-bit Microcontrollers are mainstream precision metrology MCUs based on the Arm® Cortex®-M0+ core. These MCUs provide a cost-effective, highly integrated solution for single-chip one-, two-, and three-phase electricity meters that require powerful 32-bit processing capability, precision-analog, security, and HMI functionality. NXP KM1x MCUs provide security, memory protection, tamper detection, powerful analog front-end (AFE), and protection of user data. These microcontrollers support high-precision internal voltage reference with low-temperature drift and provide a comprehensive enablement suite, including reference designs. Typical applications include energy meters, motion control and robotics, industrial measurement and sensing, home security, and flow meters, such as heat, water, and gas.
Features
- MCUs
- High-performance Arm Cortex-M0+ core and up to 50MHz of core clock frequency
- 128/64KB single array flash
- Supports v6-M instruction set architecture (ISA), including all 16-bit v7-M instructions plus a number of 32-bit thumb-2 instructions
- PLL to generate clocks for AFE
- Input range of 31.25kHz to 39.0625kHz
- Output range of 11.72MHz to 14.65MHz
- FLL to generate core, system, and flash clocks
- Input range of 31.25kHz to 39.0625kHz
- Output range of 20MHz to 50MHz
- Flexible modes of operation
- 2x internal trimmable clock references
- 32kHz
- 4MHz
- AFE
- 24-bit sigma-delta ADC with 94dB SNR
- Programmable gain amplifier with gains from 1 to 32 with low-temperature drift
- High-precision internal voltage reference with low-temperature drift
- Security
- Tamper detection with time stamping
- Random number generator and memory protection unit
- Interfaces
- High accuracy RTC 5ppm over temperature range
- 4x UART, 2x SPI, and 2x I2C
- Operations
- 1.71V to 3.6V voltage range (without AFE)
- 2.7V to 3.6V voltage range (with AFE)
- -40°C to +85°C operating temperature range
Applications
- Industrial
- 3-phase AC induction motors
- Brushless DC motor (BLDC) control
- Building safety
- Electricity meters
- Fail-safe motor control
- Gas meters
- Motion control and robotics
- Permanent magnet synchronous motors (PMSM)
- Smart power sockets and light switches
- Water meters
- Smart homes
- Heat meters
- Home security and surveillance
- Major home appliances
- Small and medium appliances
- Smart lighting
Block Diagram
Application Examples
Additional Resources
Development Tool
NXP Semiconductors TWR-KM34Z50M Development Module
Provide a development platform for the KM3x and KM1x families of Kinetis® MCUs.
Related Microcontrollers
NXP Semiconductors KM3x 32-bit Microcontrollers
Precision metrology MCUs with segment LCDs based on the Arm® Cortex®-M0+ core.
NXP Semiconductors Kinetis K2x 32-bit Microcontrollers
Low power MCUs with significant BOM savings through smart on-chip integration.
Publicado: 2020-06-25
| Actualizado: 2024-12-30