MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 5

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX286CVM4B

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 454MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Program Memory Size: 128KB (32K x 32)
• Program Memory Type: Mask ROM
• Ram Size: 32K x 32
• Voltage - Supply (vcc/vdd): 1.25 V ~ 5.25 V
• Data Converters: A/D 17x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 289-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

The drawing below shows an optimal layout for the top layer placement and routing of the DCDC
converter.
3.3
Freescale Semiconductor
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Place the DCDC output capacitors as close as possible to their respective DCDC output pins (less
than 5mm away): DCDC_VDDIO, DCDC_VDDA, DCDC_VDDD.
Place the ground connections of the DCDC_BATT input capacitors as close as possible to both the
DCDC_GND pin and the ground connections of the DCDC output capacitors.
Place the ground connections of the DCDC output capacitors as close as possible to both the
DCDC_GND pin and the ground connections of the DCDC_BATT pin input capacitors.
Route the positive battery terminal on the power plane layer using a minimum trace width of 30
mils (0.762mm). A thicker trace may be required for longer battery trace runs (using a plane is
best).
Connect the negative battery terminal directly to the ground plane(s) as well as to the top and
bottom ground fill using multiple vias (3 or more).
Battery Connection
i.MX28 Layout and Design Guidelines, Rev. 0
PMU and DC-DC Converter
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