±15kV ESD-Protected USB Level Translator in
UCSP with USB Detect
Table 1a. Truth Table Transmit (SUSP = 0, OE = 0, ENUM = X)
INPUT
MODE
VPO
VMO
D+
0
0
0
0
0
0
1
0
0
1
0
1
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
1
1
1
1
1
OUTPUT
D-
RCV
VPI
1
0
0
0
X
0
0
1
1
0
X
0
0
X
0
1
0
0
0
1
1
1
X
1
VMI
RESULT
1
LOGIC 0
0
SE0
0
LOGIC 1
0
SE0
0
SE0
1
LOGIC 0
0
LOGIC 1
1
UNDEFINED
Table 1b. Truth Table Receive (SUSP = 0, OE = 1, ENUM = X)
INPUT
D+
D-
0
0
0
1
1
0
1
1
RCV
X
0
1
X
OUTPUT
VPI
VMI
0
0
0
1
1
0
1
1
RESULT
SE0
LOGIC 0
LOGIC 1
UNDEFINED
Table 1c. Truth Table Transmit in Suspend* (SUSP = 1, OE = 0, ENUM = X)
INPUT
MODE
VPO
VMO
D+
0
0
0
0
0
0
1
0
0
1
0
1
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
1
1
1
1
1
OUTPUT
D-
RCV
VPI
VMI
RESULT
1
0
0
1
LOGIC 0
0
0
0
0
SE0
0
0
1
0
LOGIC 1
0
0
0
0
SE0
0
0
0
0
SE0
1
0
0
1
LOGIC 0
0
0
1
0
LOGIC 1
1
0
1
1
UNDEFINED
*Timing specifications are not guaranteed for D+ and D-.
Table 1d. Truth Table Receive in Suspend* (SUSP = 1, OE = 1, MODE = X, VPO/VMO = X,
ENUM = X)
INPUT
D+
D-
0
0
0
1
1
0
1
1
RCV
0
0
0
0
OUTPUT
VPI
VMI
0
0
0
1
1
0
1
1
RESULT
VPI/VMI ACTIVE
VPI/VMI ACTIVE
VPI/VMI ACTIVE
VPI/VMI ACTIVE
*Timing specifications are not guaranteed for D+ and D-.
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