MCIMX31LITEKITC Freescale Semiconductor, MCIMX31LITEKITC Datasheet - Page 56

• Manufacturer Part Number: MCIMX31LITEKITC
• Description: BOARD DEV FOR I.MX31
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of MCIMX31LITEKITC

• Contents: Module and Misc Hardware
• For Use With/related Products: i.MX31
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1
2
3
4
Electrical Characteristics
4.3.13
This section describes the electrical information of the I
4.3.13.1 I
Figure 42
supply is 2.7 V. 1
56
IC10
IC11
IC12
IC1
IC2
IC3
IC4
IC5
IC6
IC7
IC8
IC9
A device must internally provide a hold time of at least 300 ns for I2DAT signal in order to bridge the undefined region of the
falling edge of I2CLK.
The maximum hold time has to be met only if the device does not stretch the LOW period (ID IC6) of the I2CLK signal.
A Fast-mode I
250 ns must then be met. This will automatically be the case if the device does not stretch the LOW period of the I2CLK signal.
If such a device does stretch the LOW period of the I2CLK signal, it must output the next data bit to the I2DAT line max_rise_time
(ID No IC10) + data_setup_time (ID No IC8) = 1000 + 250 = 1250 ns (according to the Standard-mode I
before the I2CLK line is released.
C
ID
I2CLK
b
I2DAT
= total capacitance of one bus line in pF.
I2CLK cycle time
Hold time (repeated) START condition
Set-up time for STOP condition
Data hold time
HIGH Period of I2CLK Clock
LOW Period of the I2CLK Clock
Set-up time for a repeated START condition
Data set-up time
Bus free time between a STOP and START condition
Rise time of both I2DAT and I2CLK signals
Fall time of both I2DAT and I2CLK signals
Capacitive load for each bus line (C
depicts the timing of I
I
2
IC2
2
C Electrical Specifications
2
START
C-bus device can be used in a standard-mode I
C Module Timing
Table 43. I
IC10
IC6
Parameter
IC8
2
C Module Timing Parameters—I
IC1
2
IC10
MCIMX31/MCIMX31L Technical Data, Rev. 4.1
C module.
Figure 42. I
IC5
b
)
IC4
Table 43
2
IC11
C Bus Timing Diagram
IC11
lists the I
2
C-bus system, but the requirement of set-up time (ID IC7) of
2
C Module.
IC7
Standard Mode
Min
250
2
4.0
4.0
4.0
4.7
4.7
4.7
10
—
2
0
—
—
START
C module timing parameters where the I/O
C Pin I/O Supply=2.7 V
1
3.45
1000
Max
300
400
—
—
—
—
—
—
—
—
2
20+0.1C
20+0.1C
IC3
100
Min
2.5
0.6
0.6
0.6
1.3
0.6
1.3
0
—
STOP
Fast Mode
1
3
Freescale Semiconductor
b
b
4
4
2
C-bus specification)
IC9
Max
0.9
300
300
400
—
—
—
—
—
—
—
—
2
START
Unit
μs
μs
μs
μs
μs
μs
μs
μs
pF
ns
ns
ns