MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 43

• 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

1
2)GPMI’s output timing could be controlled by module’s internal register, say
3)AS minimum value could be 0, while DS/DH minimum value is 1.
Freescale Semiconductor
The Flash clock maximum frequency is 100 MHz.
HW_GPMI_TIMING0_ADDRESS_SETUP,HW_GPMI_TIMING0_DATA_SETUP,HW_GPMI_TIMING0_DATA_HOLD, this AC
timing depends on these registers’ setting. In the above table we use AS/DS/DH representing these settings each.
NF10
NF11
NF12
NF13
NF14
NF15
NF16
NF17
NF1
NF2
NF3
NF4
NF5
NF6
NF7
NF8
NF9
ID
CEn setup time
CE hold time
WE pulse width
Write cycle time
WE hold time
Ready to RE low
RE pulse width
READ cycle time
RE high hold time
Data setup on read
Data hold on read
CLE setup time
CLE hold time
ALE setup time
ALE hold time
Data setup time
Data hold time
Parameter
i.MX28 Applications Processors Data Sheet for Automotive Products, Rev. 0
Symbol
Table 47. NFC Timing Parameters
tREH
tDSR
tDHR
tCLS
tCLH
tALH
tALS
tWC
tWH
tWP
tCS
tCH
tDH
tRR
tRP
tRC
tDS
(DS+DH)*T
(DH+1)*T
(DH+1)*T
(DH+1)*T
(AS+1)*T
(AS+1)*T
(AS+1)*T
(AS+1)*T
T = GPMI Clock Cycle
DS*T
DH*T
DS*T
Min.
(DS+DH)*T
Timing
DS*T
DH*T
DH*T
N/A
N/A
Max.
—
—
—
—
—
—
—
—
—
—
—
1
GPMI Clock
Example Timing for
Min.
10
20
10
20
10
20
10
10
10
10
20
10
10
10
T = 10ns
10
20
10
≈ 100
Max.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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