MCIMX257DVM4 Freescale Semiconductor, MCIMX257DVM4 Datasheet - Page 118
MCIMX257DVM4
Manufacturer Part Number
MCIMX257DVM4
Description
IC MPU I.MX25 COMM 400MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX25r
Datasheet
1.MCIMX257CJM4.pdf
(154 pages)
Specifications of MCIMX257DVM4
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, LCD, 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
-20°C ~ 70°C
Package / Case
400-LFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
MCIMX257DVM4
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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3.7.20.1.1
Table 90
Figure 89
Figure 90
118
USB_TXOE_B
USB_SE0_VM
USB_DAT_VP
USB_TXOE_B
USB_SE0_VM
Transmit
USB_DAT_VP
USB_SE0_VM
USB_DAT_VP
Receive
Name
defines the DAT_SE0 bidirectional mode signals.
shows the USB transmit waveform in DAT_SE0 bidirectional mode diagram.
shows the USB receive waveform in DAT_SE0 bidirectional mode diagram.
DAT_SE0 Bidirectional Mode Timing
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
Figure 89. USB Transmit Waveform in DAT_SE0 Bidirectional Mode
Figure 90. USB Receive Waveform in DAT_SE0 Bidirectional Mode
Table 90. Signal Definitions—DAT_SE0 Bidirectional Mode
US5
Direction
Out
Out
Out
In
In
US4
Transmit enable, active low
Tx data when USB_TXOE_B is low
Differential Rx data when USB_TXOE_B is high
SE0 drive when USB_TXOE_B is low
SE0 Rx indicator when USB_TXOE_B is high
US7/US8
US1
Signal Description
US6
Freescale Semiconductor
US2
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