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参数资料
型号： MPC8349CVVAGDA
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 400 MHz, MICROPROCESSOR, PBGA672
封装： 35 X 35 MM, 1.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, TBGA-672
文件页数： 55/112页
文件大小： 1295K
代理商： MPC8349CVVAGDA
MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
47
USB
9USB
This section provides the AC and DC electrical specifications for the USB interface of the MPC8349EA.
9.1
USB DC Electrical Characteristics
Table 34 provides the DC electrical characteristics for the USB interface.
9.2
USB AC Electrical Specifications
Table 35 describes the general timing parameters of the USB interface of the MPC8349EA.
Table 34. USB DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
High-level input voltage
VIH
2OVDD + 0.3
V
Low-level input voltage
VIL
–0.3
0.8
V
Input current
IIN
—±5
μA
High-level output voltage,
IOH = –100 μA
VOH
OVDD – 0.2
—
V
Low-level output voltage,
IOL = 100 μA
VOL
—0.2
V
Note:
1. The symbol VIN, in this case, represents the OVIN symbol referenced in Table 1 and Table 2.
Table 35. USB General Timing Parameters
Parameter
Symbol 1
Min
Max
Unit
Notes
usb clock cycle time
tUSCK
15
—
ns
Input setup to usb clock - all inputs
tUSIVKH
4—
ns
input hold to usb clock - all inputs
tUSIXKH
1—
ns
usb clock to output valid - all outputs
tUSKHOV
—7
ns
Output hold from usb clock - all outputs
tUSKHOX
2—
ns
Notes:
1. The symbols for timing specifications follow the pattern of t(First two letters of functional block)(signal)(state) (reference)(state) for inputs
and t(First two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tUSIXKH symbolizes usb timing (US) for
the input (I) to go invalid (X) with respect to the time the usb clock reference (K) goes high (H). Also, tUSKHOX symbolizes USB
timing (US) for the USB clock reference (K) to go high (H), with respect to the output (O) going invalid (X) or output hold time.
2. All timings are in reference to USB clock.
3. All signals are measured from OVDD/2 of the rising edge of the USB clock to 0.4 × OVDD of the signal in question for 3.3 V
signaling levels.
4. Input timings are measured at the pin.
5. For active/float timing measurements, the Hi-Z or off state is defined to be when the total current delivered through the
component pin is less than or equal to that of the leakage current specification.
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相关代理商/技术参数
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MPC8349CVVAGFB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
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MPC8349CVVALDB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
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