Freescale’s ARM926EJ-S™ based i.MX257 applications processor targets consumer and industrial applications that require data acquisition or need greater levels of user interaction.

The i.MX257 integrates all features of the i.MX253 and adds a CMOS sensor interface for data input, and a touchscreen controller that lets the user interact with the device through the display enabling “smart touch”. Extra connectivity features such as Controller Area Network (CAN) and Smartcard provide endless possibilities for building plugged-in or portable, connected devices. With its high level of integration and connectivity options, and low-power technology, the i.MX257 is ideal for building applications including “smart touch” HMI, factory automation, and data acquisition devices.

Features

CPU Complex

• ARM926EJ-S™
• 400 MHz maximum speed
• 128KB integrated SRAM
  
• 16 KB I/D L1 Cache
  
  

Multimedia

• LCD Controller
  
• Resistive Touchscreen Controller
  
• CMOS Sensor Interface
  
  

Connectivity 

• External memory interface: DDR2, mDDR, SDRAM, mSDRAM, NOR, SLC/MLC NAND
  
• 10/100 Ethernet MAC
  
• 2 x FlexCan Controllers
  
• 480Mbps USB 2.0 OTG + PHY
  
• 480Mbps USB 2.0 Host + PHY
  
• 2 x MMC+/SD/SDIO
  
• 5 x UART, 3 x CSPI, 3 x I2C, 2 x SSI/I2S, ESAI
  
• PATA/CE-ATA
  
• 2 x Smartcard Interfaces
  
• 3 x12-bit ADC
  
• 3.3V General Purpose I/O
  
  

Technology 

• 0.8mm MAPBGA 400-pin package
  
• -20C to +70C (Consumer)
  
• -40 to +85C (industrial)