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参数资料
型号： MPC8321EVRADDCA
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 266 MHz, RISC PROCESSOR, PBGA516
封装： 27 X 27 MM, 2.25 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, PBGA-516
文件页数： 27/82页
文件大小： 1059K
代理商： MPC8321EVRADDCA
MPC8323E PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 3
Freescale Semiconductor
33
I
2C
11 I2C
This section describes the DC and AC electrical characteristics for the I2C interface of the MPC8323E.
11.1
I2C DC Electrical Characteristics
Table 33 provides the DC electrical characteristics for the I2C interface of the MPC8323E.
11.2
I2C AC Electrical Specifications
Table 34 provides the AC timing parameters for the I2C interface of the MPC8323E.
Table 33. I2C DC Electrical Characteristics
At recommended operating conditions with OVDD of 3.3 V ± 10%.
Parameter
Symbol
Min
Max
Unit
Notes
Input high voltage level
VIH
0.7
× OVDD
OVDD + 0.3
V
—
Input low voltage level
VIL
–0.3
0.3
× OVDD
V—
Low level output voltage
VOL
00.4
V
1
Output fall time from VIH(min) to VIL(max) with a bus
capacitance from 10 to 400 pF
tI2KLKV
20 + 0.1
× CB
250
ns
2
Pulse width of spikes which must be suppressed by the
input filter
tI2KHKL
050
ns
3
Capacitance for each I/O pin
CI
—10
pF
—
Input current (0 V
≤ VIN ≤ OVDD)IIN
—±5
μA4
Notes:
1. Output voltage (open drain or open collector) condition = 3 mA sink current.
2. CB = capacitance of one bus line in pF.
3. Refer to the
MPC8323E PowerQUICC II Pro Integrated Communications Processor Reference Manual for information on
the digital filter used.
4. I/O pins obstructs the SDA and SCL lines if OVDD is switched off.
Table 34. I2C AC Electrical Specifications
All values refer to VIH (min) and VIL (max) levels (see Table 33).
Parameter
Symbol1
Min
Max
Unit
SCL clock frequency
fI2C
0400
kHz
Low period of the SCL clock
tI2CL
1.3
—
μs
High period of the SCL clock
tI2CH
0.6
—
μs
Setup time for a repeated START condition
tI2SVKH
0.6
—
μs
Hold time (repeated) START condition (after this period, the first clock
pulse is generated)
tI2SXKL
0.6
—
μs
Data setup time
tI2DVKH
100
—
ns
Data hold time:
CBUS compatible masters
I2C bus devices
tI2DXKL
—
02
—
0.93
μs
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