Datasheet
TUSB2046B
TUSB2046BI
www.ti.com
SLLS413I –FEBRUARY 2000–REVISED SEPTEMBER 2013
ELECTRICAL CHARACTERISTICS
over recommended ranges of operating free-air temperature and supply voltage (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN MAX UNIT
TTL/LVCMOS I
OH
= –4 mA V
CC
– 0.5
V
OH
High-level output voltage R
(DRV)
= 15 kΩ to GND 2.8 V
USB data lines
I
OH
= –12 mA (without R
(DRV)
) V
CC
– 0.5
TTL/LVCMOS I
OL
= 4 mA 0.5
V
OL
Low-level output voltage R
(DRV)
= 1.5 kΩ to 3.6 V 0.3 V
USB data lines
I
OL
= 12 mA (without R
(DRV)
) 0.5
TTL/LVCMOS 1.8
V
IT+
Positive input threshold V
Single-ended 0.8 V ≤ V
ICR
≤ 2.5 V 1.8
TTL/LVCMOS 0.8
V
IT–
Negative-input threshold V
Single-ended 0.8 V ≤ V
ICR
≤ 2.5 V 1
TTL/LVCMOS 0.3 0.7
Input hysteresis
(1)
V
hys
mV
(V
T+
– V
T–
)
Single-ended 0.8 V ≤ V
ICR
≤ 2.5 V 300 500
TTL/LVCMOS V = V
CC
or GND
(2)
±10
I
OZ
High-impedance output current μA
USB data lines 0 V ≤ V
O
≤ V
CC
±10
I
IL
Low-level input current TTL/LVCMOS V
I
= GND –1 μA
I
IH
High-level input current TTL/LVCMOS V
I
= V
CC
1 μA
z
0(DRV)
Driver output impedance USB data lines Static V
OH
or V
OL
7.1 19.9 Ω
V
ID
Differential input voltage USB data lines 0.8 V ≤ V
ICR
≤ 2.5 V 0.2 V
Normal operation 40 mA
I
CC
Input supply current
Suspend mode 1 μA
(1) Applies for input buffers with hysteresis.
(2) Applies for open drain buffers.
DIFFERENTIAL DRIVER SWITCHING CHARACTERISTICS
Full Speed Mode
over recommended ranges of operating free-air temperature and supply voltage, C
L
= 50 pF (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN MAX UNIT
t
r
Transition rise time for DP or DM See Figure 1 and Figure 2 4 20 ns
t
f
Transition fall time for DP or DM See Figure 1 and Figure 2 4 20 ns
t
(RFM)
Rise/fall time matching
(1)
(t
r
/t
f
) × 100 90 110 %
V
O(CRS)
Signal crossover output voltage
(1)
1.3 2.0 V
(1) Characterized only. Limits are approved by design and are not production tested.
DIFFERENTIAL DRIVER SWITCHING CHARACTERISTICS
Low Speed Mode
over recommended ranges of operating free-air temperature and supply voltage, C
L
= 50 pF (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN MAX UNIT
t
r
Transition rise time for DP or DM
(1)
C
L
= 200 pF to 600 pF, See Figure 1 and Figure 2 75 300 ns
t
f
Transition fall time for DP or DM
(1)
C
L
= 200 pF to 600 pF, See Figure 1 and Figure 2 75 300 ns
t
(RFM)
Rise/fall time matching
(1)
(t
r
/t
f
) × 100 80 120 %
V
O(CRS)
Signal crossover output voltage
(1)
C
L
= 200 pF to 600 pF 1.3 2.0 V
(1) Characterized only. Limits are approved by design and are not production tested.
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