參數(shù)資料
型號(hào): MPC8314EVRAGDA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, PBGA620
封裝: 29 X 29 MM, LEAD FREE, PLASTIC, TEPBGA-620
文件頁數(shù): 40/106頁
文件大?。?/td> 1253K
代理商: MPC8314EVRAGDA
MPC8314E PowerQUICC II Pro Processor Hardware Specifications, Rev. 0
Freescale Semiconductor
39
USB
Figure 22. USB Signals
10.2
On-Chip USB PHY
This section provides the AC and DC electrical specifications for the USB PHY interface of the
MPC8314E.
For details refer to Tables 7-7 through 7-10, and Table 7-14 in the USB 2.0 Specifications document, and
the pull-up/down resistors ECN updates, all available at www.usb.org.
Table 41 provides the USB clock input (USB_CLK_IN) DC timing specifications.
Table 42 provides the USB clock input (USB_CLK_IN) AC timing specifications.
Table 41. USB_CLK_IN DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
Input high voltage
VIH
2.7
NVDD +0.3
V
Input low voltage
VIL
–0.3
0.4
V
Table 42. USB_CLK_IN AC Timing Specifications
Parameter/Condition
Conditions
Symbol
Min
Typical
Max
Unit
Frequency range
fUSB_CLK_IN
—24
MHz
Clock frequency tolerance
tCLK_TOL
–0.05
0
0.05
%
Reference clock duty cycle
Measured at
1.6 V
tCLK_DUTY
40
50
60
%
Total input jitter/Time interval error
Peak to peak
value measured
with a second
order high-pass
filter of 500 KHz
bandwidth
tCLK_PJ
200
ps
Output Signals
tUSKHOV
USBDR_CLK
Input Signals
tUSIXKH
tUSIVKH
tUSKHOX
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