參數(shù)資料
型號： MC68HC05JB4DW
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO28
封裝： SOIC-28
文件頁數(shù)： 27/134頁
文件大小： 2440K
代理商： MC68HC05JB4DW
GENERAL RELEASE SPECIFICATION
February 24, 1999
ELECTRICAL SPECIFICATIONS
REV
13.5
USB LOW SPEED SOURCE ELECTRICAL CHARACTERISTICS
NOTES:
1.
All voltages measured from local ground, unless otherwise specied.
2.
All timings use a capacitive load of 50pF, unless otherwise specied.
3.
Low speed timings have a 1.5k pull-up to 2.8V on the D– data line.
4.
Measured from 10% to 90% of the data signal.
5.
The rising and falling edges should be smooth transitions (monotonic).
6.
Timing differences between the differential data signals.
7.
Measured at crossover point of differential data signals.
8.
Capacitive loading includes 50pF of tester capacitance.
Table 13-3. USB Low Speed Source Electrical Characteristics
Parameter
Symbol
Conditions
(Notes 1,2,3)
Min
Typ
Max
Unit
Transition time:
Rise Time
Fall Time
TR
TF
Notes 4, 5, 8
CL=50pF
CL=350pF
CL=50pF
CL=350pF
75
—
300
—
300
ns
Rise/Fall Time Matching
TRFM
TR/TF
80
—
120
%
Output Signal Crossover
Voltage
VCRS
1.3
—
2.0
V
Low Speed Data Rate
TDRATE
1.5Mbs
±1.5%
1.4775
676.8
1.500
666.0
1.5225
656.8
Mbs
ns
Source Differential Driver Jitter
To Next Transition
For Paired Transitions
TUDJ1
TUDJ2
CL=350pF
Notes 6 and 7
–25
–10
—
25
10
ns
Receiver Data Jitter Tolerance
To Next Transition
For Paired Transitions
TDJR1
TDJR2
CL=350pF
Notes 7
–75
–45
—
75
45
ns
Source EOP Width
TEOPT
Note 7
1.25
—
1.50
s
Differential to EOP Transition
Skew
TDEOP
Note 7
–40
—
100
ns
Receiver EOP Width
Must Reject as EOP
Must Accept
TEOPR1
TEOPR2
Note 7
330
675
—
ns
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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