MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 10

• Manufacturer Part Number: MCIMX281AVM4B
• Description: IC MPU I.MX28 1.2 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX281AVM4B

• 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: Supplier Unconfirmed

2.1
Special signal considerations are listed in
“Package Information and Contact
manual.
10
DCDC_BATTERY
RTC_XTALO
TESTMODE
RTC_XTALI
PSWITCH
VDDXTAL
BATTERY
RESETN
DEBUG
Special Signal Considerations
XTALO
Signal
XTALI
i.MX28 Applications Processors Data Sheet for Automotive Products, Rev. 0
The pin is used for chip power on or recovery. VDDIO can be applied to PSWITCH through a
10 kΩ resistor. This is necessary in order to enter the chip’s firmware recovery. The on-chip
circuitry prevents the actual voltage on the pin from exceeding acceptable levels
This pin is an output of i.MX28. Should be coupled to ground with a 0.1 uF capacitor. User
should not supply external power to this pin.
This pin should be connected to the battery with minimal resistance. It provides charging current
to the battery. If the system does not use a battery, this pin should be left floating. See the
“Power Supply” section of the reference manual for details.
This pin is an input of i.MX28 that provides supply to the DCDC converter. It should be
connected to the battery with minimal resistance. See the “Power Supply” section of the
reference manual for details.
These analog pins are connected to an external 24 MHz crystal circuit. This crystal provides the
clock source for on-chip PLLs.
These analog pins are connected to an external 32.768/32.0 kHz crystal circuit. This crystal
provides clock source to the on-chip real-time counter circuits.
This pin resets the chip if it is low. This pin is pulled up to VDDIO33 with an internal resistor. No
external pull up resistors are needed.
This pin is used for JTAG interface.
DEBUG=0: JTAG interface works for boundary scan.
DEBUG=1: JTAG interface works for ARM debugging.
For Freescale factory use only. Must be externally connected to GND for normal operation.
Assignments.”
Table 5. Signal Considerations
Table
5. The package contact assignment is found in
Signal descriptions are provided in the reference
Descriptions
Freescale Semiconductor
Section 4,