I2
參數(shù)資料
型號: MPC8548EPXATGB
廠商: Freescale Semiconductor
文件頁數(shù): 104/151頁
文件大?。?/td> 0K
描述: MPU POWERQUICC III 783-PBGA
產(chǎn)品培訓(xùn)模塊: MPC8548 PowerQUICC III Processors
標(biāo)準(zhǔn)包裝: 1
系列: MPC85xx
處理器類型: 32-位 MPC85xx PowerQUICC III
速度: 1.2GHz
電壓: 1.1V
安裝類型: 表面貼裝
封裝/外殼: 783-BBGA,F(xiàn)CBGA
供應(yīng)商設(shè)備封裝: 783-FCPBGA(29x29)
包裝: 托盤
MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 9
56
Freescale Semiconductor
I2C
13 I2C
This section describes the DC and AC electrical characteristics for the I2C interfaces of the device.
13.1
I2C DC Electrical Characteristics
This table provides the DC electrical characteristics for the I2C interfaces.
13.2
I2C AC Electrical Specifications
This table provides the AC timing parameters for the I2C interfaces.
Table 45. I2C DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
Notes
Input high voltage level
VIH
0.7
OV
DD
OVDD +0.3
V
Input low voltage level
VIL
–0.3
0.3
OV
DD
V—
Low level output voltage
VOL
00.2
OV
DD
V1
Pulse width of spikes which must be suppressed by the
input filter
tI2KHKL
050
ns
2
Input current each I/O pin (input voltage is between
0.1
OV
DD and 0.9 OVDD(max)
II
–10
10
A3
Capacitance for each I/O pin
CI
—10
pF
Notes:
1. Output voltage (open drain or open collector) condition = 3 mA sink current.
2. See the MPC8548E PowerQUICC III Integrated Processor Family Reference Manual, for information on the digital filter
used.
3. I/O pins obstruct the SDA and SCL lines if OVDD is switched off.
Table 46. I2C AC Electrical Specifications
Parameter
Symbol1
Min
Max
Unit
Notes
SCL clock frequency
fI2C
0400
kHz
Low period of the SCL clock
tI2CL
1.3
s4
High period of the SCL clock
tI2CH
0.6
s4
Setup time for a repeated START condition
tI2SVKH
0.6
s4
Hold time (repeated) START condition (after this period,
the first clock pulse is generated)
tI2SXKL
0.6
s4
Data setup time
tI2DVKH
100
ns
4
Data input hold time:
CBUS compatible masters
I2C bus devices
tI2DXKL
0
s2
Data output delay time:
tI2OVKL
—0.9
3
Set-up time for STOP condition
tI2PVKH
0.6
s—
Bus free time between a STOP and START condition
tI2KHDX
1.3
s—
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