MCIMX351AVM4B Freescale, MCIMX351AVM4B Datasheet - Page 99

• Manufacturer Part Number: MCIMX351AVM4B
• Manufacturer: Freescale

Specifications of MCIMX351AVM4B

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

1
2
3
4.9.16
Figure 71
Freescale Semiconductor
MLBCLK pulse width variation
MLBSIG/MLBDAT output high
impedance from MLBCLK low
OW1
OW2
OW3
OW4
MLBSIG/MLBDAT input valid
MLBSIG/MLBDAT input hold
The MLB Controller can shut off MLBCLK to place MediaLB in a low-power state.
Pulse width variation is measured at 1.25 V by triggering on one edge of MLBCLK and measuring the spread on the other edge,
measured in ns peak-to-peak (pp)
The board must be designed to insure that the high-impedance bus does not leave the logic state of the final driven bit for this
time period. Therefore, coupling must be minimized while meeting the maximum capacitive load listed.
ID
MLBCLK high time
(BATT_LINE)
to MLBCLK falling
from MLBCLK low
1-Wire bus
Bus Hold Time
Parameter
depicts the RPP timing, and
Reset time low
Presence detect high
Presence detect low
Reset time high
1-Wire Timing Specifications
Table 61. RPP Sequence Delay Comparisons Timing Parameters
Figure 71. Reset and Presence Pulses (RPP) Timing Diagram
Table 60. MLB Device 1024Fs Timing Parameters (continued)
i.MX35 Applications Processors for Automotive Products, Rev. 9
Parameters
Symbol
t
t
t
t
t
t
mpwv
dsmcf
dhmcf
mcfdz
“Reset Pulse”
mdzh
mckh
1-WIRE Tx
OW1
Table 61
Min
9.7
9.3
—
1
0
0
2
lists the RPP timing parameters.
t
t
t
t
RSTL
PDH
PDL
RSTH
10.6
10.2
Typ
—
—
—
—
—
Symbol
Max
t
0.7
mckl
—
—
—
—
—
OW3
OW2
480
15
60
480
“Presence Pulse”
Min.
DS2502 Tx
Units
ns pp
ns
ns
ns
ns
ns
Typ.
511
512
—
—
OW4
Max.
240
PLL unlocked
60
—
—
Comment
Note
Note
—
—
—
2
3
Units
µs
µs
µs
µs
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