Datasheet

170
TMS320F28379S , TMS320F28377S
TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881C –AUGUST 2014–REVISED MAY 2016 www.ti.com
Submit Documentation Feedback
Product Folder Links: TMS320F28379S TMS320F28377S TMS320F28376S TMS320F28375S TMS320F28374S
Specifications Copyright © 2014–2016, Texas Instruments Incorporated
5.10.6.1 USB Electrical Data and Timing
Table 5-91 shows the USB input ports DP and DM timing requirements. Table 5-92 shows the USB output
ports DP and DM switching characteristics.
Table 5-91. 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 kΩ
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 5-92. 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
t
r
Rise time
Full speed, differential, C
L
= 50 pF, 10%/90%,
Rpu on D+
4 20 ns
t
f
Fall time
Full speed, differential, C
L
= 50 pF, 10%/90%,
Rpu on D+
4 20 ns