ADV
ANCEINFORMA
TION
TMS320F28377S, TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881A – AUGUST 2014 – REVISED JUNE 2015
5.10.6.1 USB Electrical Data and Timing
Table 5-86. USB Input Ports DP and DM Timing Requirements
MIN
MAX
UNIT
V(CM)
Differential input common mode range
0.8
2.5
V
Z(IN)
Input impedance
300
k
Ω
VCRS
Crossover voltage
1.3
2.0
V
V
IL
Static SE input logic-low level
0.8
V
V
IH
Static SE input logic-high level
2.0
V
VDI
Differential input voltage
0.2
V
Table 5-87. USB Output Ports DP and DM Switching Characteristics
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
V
OH
D+, D– single-ended
USB 2.0 load conditions
2.8
3.6
V
V
OL
D+, D– single-ended
USB 2.0 load conditions
0
0.3
V
Z(DRV)
D+, D– impedance
28
44
Ω
Full speed, differential, C
L
= 50 pF, 10%/90%,
t
r
Rise time
4
20
ns
Rpu on D+
Full speed, differential, C
L
= 50 pF, 10%/90%,
t
f
Fall time
4
20
ns
Rpu on D+
Copyright © 2014–2015, Texas Instruments Incorporated
Specifications
159
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