Описание
The MCF51JE256/128 (JE256/128) provides ultra low-power operation, USB connectivity and high measurement accuracy, all in a single 32-bit microcontroller (MCU), allowing designers to develop a more fully featured system at a lower cost. The JE256/128 integrates high-resolution analog-to-digital converter (ADC) and digital-to-analog converter (DAC) modules, rich peripheral set including a USB 2.0 host/device/on-the-go controller, multiple serial interfaces and an external bus interface. The JE256/128 is part of Freescale"s Flexis MCU series, which includes both 8-bit S08 and 32-bit V1 ColdFire MCUs that have a common set of peripherals and development tools to deliver the ultimate in migration flexibility. Freescale provides a comprehensive suite of development tools and software to help developers design quickly and easily.
- Up to 256 KB flash
- Up to 32 KB SRAM
- Mini FlexBus (external bus interface)
- 12-bit SAR ADC-high resolution ADC
- Programmable delay block
- PRACMP – analog comparator with 5-bit DAC
- Internal voltage reference
- USB device/host/on-the-go controller
- 2 x serial peripheral interface (SPI)
- 2 x serial communication interface (SCI)
- I²C
- 2 x 4-channel timer
- Pulse width modulator
- Time of day module
- Carrier modulator timer
- 2 x keyboard interrupts (KBI)
- Low-voltage indicator
- Low-power stop 2 current:500 nA (32 KB of active SRAM)
