Freescale KEA128汽车光控制模块参考设计

Freescale公司的Kinetis EA系列MCU是基于ARM核的高成本效益的汽车电子解决方案,适用于汽车各种应用如娱乐连接模块,停车辅助,DC/BLDC马达控制,TPMS,电动自行车CDI/EFI,电池管理,泵/风扇控制器,环境照明,BCM/HVAC,车窗/门/车顶,座位/镜/雨刷,动力总成姐妹芯片,传感器节点和发动机防盗系统.本文介绍了KEA128主要特性,框图,以及光控制模块参考设计KEA128LEDLIGHTRD主要特性和框图,电路图.
Kinetis EA series MCUs for automotive provide cost-effective ARM®-based solution for a wide range of automotive applications and are pin-compatible across the Kinetis EA series and with future Kinetis automotive families.
This series includes a set of analog, communication, timing and control peripherals with varying flash memory size and pin count. These scalable devices are highly robust, and offer an enhanced ESD/EMC performance solution for cost-sensitive automotive applications. This series is supported by development tools, software and hardware references to help you quickly start designing.
KEA128主要特性:
• Operating characteristics
– Voltage range: 2.7 to 5.5 V
– Flash write voltage range: 2.7 to 5.5 V
– Temperature range (ambient): -40 to 125℃
• Performance
– Up to 48 MHz ARM? Cortex-M0+ core
– Single cycle 32-bit x 32-bit multiplier
– Single cycle I/O access port
• Memories and memory interfaces
– Up to 128 KB flash
– Up to 16 KB RAM
• Clocks
– Oscillator (OSC) - supports 32.768 kHz crystal or 4 MHz to 24 MHz crystal or ceramic resonator; choice of low power or high gain oscillators
– Internal clock source (ICS) - internal FLL with internal or external reference, 37.5 kHz pre-trimmed internal reference for 48 MHz system clock
– Internal 1 kHz low-power oscillator (LPO)
• System peripherals
– Power management module (PMC) with three power modes: Run, Wait, Stop
– Low-voltage detection (LVD) with reset or interrupt,selectable trip points
– Watchdog with independent clock source (WDOG)
–...