NXP Semiconductors Kinetis KL8x Ultra-Low Power MCUs

NXP Semiconductors Kinetis KL8x Ultra-Low Power Microcontrollers offer enhanced security to support point-of-sale (POS) and Internet of Things (IoT) applications. The Kinetis KL8x MCUs feature a 72MHz Arm^® Cortex^®-M0+ core with 128KB flash memory and 96KB SRAM. An integrated QuadSPI interface supports connections to non-volatile memory (serial NOR). The microcontrollers consume as little as 125µA/MHz in run mode. In sleep mode, the devices operate down to 272nA with RAM and RTC retained. Enhanced security features include true random number generator, tamper detection, and low-power trusted crypto engine supporting 3DES, AES, DES, SHA, RSA, and ECC.

The MCUs provide symmetric cryptographic acceleration and full-speed USB 2.0 On-The-Go (OTG), including options for crystal-less device functionality. With minimal CPU intervention, the crystal-less USB OTG controller, 16-bit ADC, and multiple serial communication interfaces function autonomously in low-power modes. The hardware asymmetric cryptography offers high-speed, code- and power-efficient data authentication with support for encryption protocols. With high performance, ultra-low power operation, and encryption/tamper detection features, the KL8x MCUs can support more power-restricted POS payment applications. These power-restricted payment options include smartphone and tablet attach readers and payment methods embedded in wearable technology.

Features

Memory
- 128KB Program flash memory
- 96KB SRAM
- 32KB ROM with built-in bootloader
- 32B Backup register
- QSPI to expand program code in external high-speed serial NOR flash memory
72MHz Arm^® Cortex^®-M0+ core (with up to 96MHz for high-speed run)
Connectivity and communications
- USB full-speed 2.0 OTG controller supporting crystal-less operation and keeping the connection alive under ultra-low-power modes
- 3x low-power UART modules
- 1x FlexIO module supporting emulation of additional UART, SPI, I²C, I2S, PWM, and other serial modules, up to 32 channels
- Touch sensing interface, up to 16 channels
1.71V to 3.6V voltage range
-40°C to +105°C temperature range

Analog front end
- 1x 16-bit ADC module with a highly accurate internal voltage reference and up to 16 channels
- High-speed analog comparator containing a 6-bit DAC for programmable reference input
- 1x 12-bit DAC module
Advanced security
- 80-bit unique identification number per chip
- Advanced flash security and access control
- Hardware CRC module
- Low-power trusted crypto engine supporting AES128/256, DES, 3DES, SHA256, RSA, and ECC, with hardware DPA
- True random number generator
- Up to 8 active anti-tamper detection pins
- Tamper detection monitoring temperature, voltage, and frequency