MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 32

• 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

3.4.3.3
Figure 7
32
DDR13
DDR14
DDR15
DDR16
DDR20
DDR21
DDR22
ID
ID
and
EMI_CLKN
EMI_CLK
EMI_DQSN
EMI_DQS
EMI_DQ
DQS output high pulse width
DQS output low pulse width
DQ & DQM output setup time relative to DQS
DQ & DQM output hold time relative to DQS
Positive DQS latching edge to associated CK edge
DQS to DQ input skew
DQS to DQ input hold time
Table 36
DDR2 Input AC Timing
i.MX28 Applications Processors Data Sheet for Automotive Products, Rev. 0
show input AC timing for standard DDR2 and LVDDR2.
Table 35. DDR Output AC Timing (continued)
Description
Description
DDR20
Figure 7. DDR2 Input AC Timing
Table 36. DDR2 Input AC Timing
DDR21
d0
DDR22
d1
tDQSH
tDQSL
tDQSCK
tDQSQ
tDS
tDH
tQH
Symbol
Symbol
d2
0.5 tCK
–0.5
0.5 tCK
–0.5
1/4 tCK
–0.8
1/4 tCK
–0.8
–0.5
0.25 tCK
–0.85
0.25 tCK
+0.75
d3
Min
Min
Freescale Semiconductor
0.5 tCK
+ 0.5
0.5 tCK
+ 0.5
1/4 tCK
–0.5
1/4 tCK
–0.5
0.25 tCK
–0.5
0.25 tCK
+ 1
0.5
Max
Max
ns
ns
ns
ns
ns
ns
ns
Unit
Unit