mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 278

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Specifications
21.11 USB Low Speed Source Electrical Characteristics
21.12 Timer Interface Module Characteristics
Data Sheet
278
Transition time:
Rise/Fall Time Matching
Output Signal Crossover
Low Speed Data Rate
Source Differential Driver Jitter
Receiver Data Jitter Tolerance
Source EOP Width
Differential to EOP Transition
Receiver EOP Width
Input Capture Pulse Width
Input Clock Pulse Width
Rise Time
Fall Time
Voltage
To Next Transition
For Paired Transitions
To Next Transition
For Paired Transitions
Skew
Must Reject as EOP
Must Accept
NOTES:
1. All voltages measured from local ground, unless otherwise specified.
2. All timings use a capacitive load of 50pF, unless otherwise specified.
3. Low speed timings have a 1.5kΩ 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 smoothly transitioning (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.
Characteristic
Characteristic
Symbol
TDEOP
TEOPT
T
T
T
T
T
T
T
T
V
EOPR1
EOPR2
DRATE
UDJ1
UDJ2
DJR1
DJR2
T
RFM
T
CRS
R
F
Electrical Specifications
1.5Mbs±1.5%
(Notes 1,2,3)
Notes 4, 5, 8
Conditions
C
C
C
C
Notes 6, 7
C
C
L
L
L
L
Note 7
Note 7
Note 7
Note 7
L
L
T
=350pF
=350pF
=350pF
=350pF
=50pF
=50pF
R
/T
F
t
Symbol
TCH,
t
TIH,
t
t
1.4775
TIL
TCL
676.8
1.25
Min
–25
–10
–75
–45
–40
330
675
1.3
75
75
80
(1/f
Min
OP
125
) + 5
1.500
666.0
Typ
MC68HC908BD48
—
—
—
—
—
—
—
—
—
—
—
—
Freescale Semiconductor
1.5225
Max
656.8
Max
1.50
300
300
120
—
—
100
2.0
25
10
75
45
—
—
—
—
—
Rev. 2.1
Unit
Mbs
Unit
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
%
ns
ns
V