MCIMX251AJM4 Freescale Semiconductor, MCIMX251AJM4 Datasheet - Page 123

• Manufacturer Part Number: MCIMX251AJM4
• Description: IC MPU IMX25 AUTO 400MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX25r

Specifications of MCIMX251AJM4

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: 1-Wire, CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, POR, PWM, WDT
• Number Of I /o: 128
• Program Memory Type: External Program Memory
• Ram Size: 144K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.52 V
• Data Converters: A/D 3x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 400-MAPBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Figure 96
Table 97
Freescale Semiconductor
US30
US31
US32
US33
US34
US35
US36
US37
US38
US39
US40
US41
Receive
No.
USB_TXOE_B
USB_VP1
USB_VM1
shows the timing specifications for USB in VP_VM unidirectional mode.
USB_RCV
shows the USB receive waveform in VP_VM unidirectional mode diagram.
Tx high overlap
Rx rise/fall time
Rx rise/fall time
Tx rise/fall time
Tx rise/fall time
Tx rise/fall time
Tx low overlap
Disable delay
Tx duty cycle
Enable delay
Parameter
Table 97. USB Timing Specifications in VP_VM Unidirectional Mode
Rx skew
Rx skew
Figure 96. USB Receive Waveform in VP_VM Unidirectional Mode
i.MX25 Applications Processor for Automotive Products, Rev. 8
US36
US41
USB_SE0_VM
USB_TXOE_B
USB_SE0_VM
USB_SE0_VM
USB_SE0_VM
USB_SE0_VM
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
USB_VM1
USB_RCV
USB_VP1
USB_VP1
US40
Signal
Direction
Out
Out
Out
Out
Out
Out
Out
Out
In
In
In
In
US38
US39
Min.
49.0
–4.0
–6.0
0.0
—
—
—
—
—
—
—
—
Max.
51.0
10.0
+4.0
+2.0
5.0
5.0
5.0
0.0
8.0
3.0
3.0
—
US37
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
Reference Signal
USB_TXOE_B
USB_TXOE_B
USB_SE0_VM
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
Conditions/
50 pF
50 pF
35 pF
35 pF
50 pF
—
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