Communication interfaces
6.8 Communication interfaces
6.8.1 USB electrical specifications
The USB electricals for the USB On-the-Go module conform to the standards
documented by the Universal Serial Bus Implementers Forum. For the most up-to-date
standards, visit http://www.usb.org.
6.8.2 USB DCD electrical specifications
Table 31. USB DCD electrical specifications
Symbol
Description
Min.
Typ.
Max.
Unit
VDP_SRC
USB_DP source voltage (up to 250 μA)
0.5
—
0.7
V
VLGC
Threshold voltage for logic high
USB_DP source current
USB_DM sink current
0.8
7
—
10
2.0
13
V
IDP_SRC
IDM_SINK
μA
μA
kΩ
V
50
100
—
150
24.8
0.4
RDM_DWN D- pulldown resistance for data pin contact detect
VDAT_REF Data detect voltage
14.25
0.25
0.33
6.8.3 USB VREG electrical specifications
Table 32. USB VREG electrical specifications
Typ.1
Symbol Description
Min.
2.7
—
Max.
5.5
Unit
Notes
VREGIN Input supply voltage
—
V
IDDon
IDDstby
IDDoff
Quiescent current — Run mode, load current
equal zero, input supply (VREGIN) > 3.6 V
120
186
μA
Quiescent current — Standby mode, load
current equal zero
—
1.1
1.54
μA
Quiescent current — Shutdown mode
• VREGIN = 5.0 V and temperature=25C
• Across operating voltage and temperature
—
—
650
—
—
4
nA
μA
ILOADrun Maximum load current — Run mode
ILOADstby Maximum load current — Standby mode
—
—
—
—
120
1
mA
mA
Table continues on the next page...
MCF51JU128 Data Sheet, Rev. 4, 01/2012.
46
Freescale Semiconductor, Inc.