MCIMX253CVM4 Freescale Semiconductor, MCIMX253CVM4 Datasheet - Page 43

• Manufacturer Part Number: MCIMX253CVM4
• Description: IC MPU I.MX25 IND 400MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX25r

Specifications of MCIMX253CVM4

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: 1-Wire, 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: -40°C ~ 85°C
• Package / Case: 400-LFBGA
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

Table 32
Figure 8
are shown in the figure.
Figure 9
parameters (OW7–OW8) that are shown in the figure.
Freescale Semiconductor
OW5
OW6
OW1
OW2
OW3
OW4
ID
ID
shows write 0 sequence timing, and
and
lists the RPP timing parameters.
Write 0 Low Time
Transmission Time Slot
Figure 10
1-Wire bus
(OWIRE_LINE)
1-Wire bus
(OWIRE_LINE)
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
Table 32. RPP Sequence Delay Comparisons Timing Parameters
Presence Detect High
Presence Detect Low
Reset Time High
show write 1 and read sequence timing, respectively.
Reset Time Low
Parameters
Parameter
Table 33. WR0 Sequence Timing Parameters
Figure 8. Write 0 Sequence Timing Diagram
Figure 9. Write 1 Sequence Timing Diagram
OW7
Table 33
OW5
Symbol
t
Symbol
describes the timing parameters (OW5–OW6) that
WR0_low
t
t
t
t
t
RSTH
RSTL
SLOT
PDH
PDL
OW8
OW6
Min.
480
480
OW5
Min.
15
60
60
Table 34
Typ.
511
512
—
—
Typ.
100
117
describes the timing
Max.
240
Max.
60
—
—
120
120
Units
Units
us
us
us
us
μs
μs
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