MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 20

• 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

Table 23
Table 24
1
2
3.2.2
Max load includes capacitive load due to PCB traces, pad capacitance and driver self-loading. For the
internal pull up setting of each pad, see the “Pin Control and GPIO” section of the reference manual.
Table 25
eight pins loaded using the 4mA driver, four pins loaded using the 8mA driver, and two pins loaded using
either the 12mA or 16mA driver.
20
Max load includes capacitive load due to PCB traces, pad capacitance and driver self-loading.
Setting is for worst case. Freescale’s EMI interface uses less powerful drivers than those typically used in mDDR devices. A
possible transmission-line effect on the PC board must be suppressed by minimizing the trace length combined with
Freescale’s slower edge-rate drivers. The i.MX28 provides up to 16 mA programmable drive strength. However, the 16-mA
mode is an experimental mode. With the 16-mA mode, the EMI function may be impaired by Simultaneous Switching Output
(SSO) noise. In general, the stronger the driver mode, the noisier the on-chip power supply. Freescale recommends not using
a stronger driver mode than is required. Because on-chip power and ground noise is proportional to the inductance of its return
path, users should make their best effort to reduce inductance between the EMI power and ground balls and the PC board
power and ground planes.
Output voltage high (dc)
Output voltage low (dc)
Input voltage high (dc)
Input voltage low (dc)
DDR2/mDDR
shows the ON impedance of EMI drivers for different drive strengths.
shows the external devices supported by the EMI.
shows the digital pin DC characteristics for GPIO in 3.3-V mode. Measurements are valid for
Parameter
LVDDR2
DRAM Device
Mode
GPIO I/O DC Parameters
1.5
1.8
LVDDR2
mDDR
DDR2
i.MX28 Applications Processors Data Sheet for Automotive Products, Rev. 0
Table 23. ON Impedance of EMI Drivers for Different Drive Strengths
Table 25. Digital Pin DC Characteristics for GPIO in 3.3-V Mode
Table 24. External Devices Supported by the EMI
Symbol
Medium
Medium
Drive
VOH
VOL
High
High
VIH
Low
Low
VIL
Max Load
15 pF
15 pF
15 pF
0.8 × VDDIO
Min. (Ω)
TBD
TBD
TBD
TBD
TBD
TBD
Min
1, 2
—
—
2
Typ. (Ω)
VDDIO
TBD
TBD
TBD
TBD
TBD
TBD
Max
0.8
0.4
—
Pad Voltage
Freescale Semiconductor
1.8 V
1.8 V
1.5 V
Max. (Ω)
TBD
TBD
TBD
TBD
TBD
TBD
Units
V
V
V
V