MCIMX251AVM4 Freescale Semiconductor, MCIMX251AVM4 Datasheet - Page 119
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MCIMX251AVM4
Manufacturer Part Number
MCIMX251AVM4
Description
IC MPU I.MX25 AUTO 400MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX25r
Datasheet
1.MCIMX255AJM4.pdf
(140 pages)
Specifications of MCIMX251AVM4
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-LFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCIMX251AVM4
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Table 91
3.7.20.1.2
Table 92
Figure 91
Freescale Semiconductor
US1
US2
US3
US4
US5
US6
US7
US8
No.
Transmit
USB_SE0_VM
USB_DAT_VP
USB_TXOE_B
USB_SE0_VM
USB_DAT_VP
USB_VM1
USB_RCV
USB_VP1
shows the OTG port timing specification in DAT_SE0 bidirectional mode.
defines the DAT_SE0 unidirectional mode signals.
shows the USB transmit waveform in DAT_SE0 unidirectional mode diagram.
Name
Rx rise/fall time
Rx rise/fall time
Tx rise/fall time
Tx rise/fall time
Tx rise/fall time
Disable Delay
Enable Delay
Tx duty cycle
Parameter
DAT_SE0 Unidirectional Mode Timing
Table 91. OTG Port Timing Specification in DAT_SE0 Bidirectional Mode
Figure 91. USB Transmit Waveform in DAT_SE0 Unidirectional Mode
Table 92. Signal Definitions—DAT_SE0 Unidirectional Mode
i.MX25 Applications Processor for Automotive Products, Rev. 8
USB_TXOE_B
USB_SE0_VM
USB_SE0_VM
USB_SE0_VM
Direction
USB_SE0_VM
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
Signal Name
US12
Out
Out
Out
In
In
In
Transmit enable, active low
Tx data when USB_TXOE_B is low
SE0 drive when USB_TXOE_B is low
Buffered data on DP when USB_TXOE_B is high
Buffered data on DM when USB_TXOE_B is high
Differential Rx data when USB_TXOE_B is high
Direction
Out
Out
Out
Out
In
In
In
In
US9
Min.
49.0
—
—
—
—
—
—
—
Signal Description
Max.
51.0
10.0
5.0
5.0
5.0
8.0
3.0
3.0
Unit
ns
ns
ns
ns
ns
ns
ns
%
US10
Reference Signal
USB_TXOE_B
USB_TXOE_B
Conditions/
50 pF
50 pF
50 pF
35 pF
35 pF
—
119
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