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USB Switch. TC7USB42MU Datasheet |
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![]() CMOS Digital Integrated Circuits Silicon Monolithic
TC7USB42MU
TC7USB42MU
1. Functional Description
• Dual SPDT USB Switch
2. General
The TC7USB42MU is high-speed CMOS dual 1-2 multiplexer/demultiplexer. The low ON-resistance and the low
capacitance of the switch allow connections to USB2.0 (480Mbps) application.
This device consists of dual individual two-inputs multiplexer/demultiplexer with common select input (S) and
output enable (OE). The D+/D- inputs is connected to the 1D+/1D- or 2D+/2D- outputs determined by the
combination both the select input (S) and output enable (OE). When the output enable (OE) input is held high
level, the switches are open with regardless the state of select inputs and a high-impedance state exists between
the switches.
All inputs are equipped with protection circuits against static discharge.
3. Features
(1) Supply voltage: VCC = 2.3 to 4.3 V
(2) Switch terminal ON-capacitance: CI/O = 5 pF Switch ON (typ.) @VCC = 3.3 V
(3) ON-resistance: RON = 4.5 Ω (typ.) @VCC = 3 V, VIS = 0 V
(4) RON flatness: RON(flat) = 1.3 Ω (typ.)@VCC = 3 V
(5) Difference of ON-resistance between switches: ∆RON = 0.35 Ω (typ.)@VCC = 3 V
(6) Power-down protection provided on all inputs and outputs.
(7) Ultra-small Package: UQFN10B, UQFN10
©2020
Toshiba Electronic Devices & Storage Corporation
1
Start of commercial production
2020-06
2020-06-16
Rev.4.0
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![]() 4. Packaging and Pin Assignment (Note)
TC7USB42MU
UQFN10B
UQFN10
Note: The shapes and dimensions of the package vary, depending on the manufacturing plant.
For details, contact the Toshiba sales representative.
5. Marking
Fig. 5.1 UQFN10B (Top view)
Fig. 5.2 UQFN10 (Top view)
©2020
Toshiba Electronic Devices & Storage Corporation
2
2020-06-16
Rev.4.0
|
![]() 6. Block Diagram
TC7USB42MU
Fig. 6.1 Block Diagram
7. Principle of Operation
7.1. Truth Table
Input
OE
Input
S
L
L
L
H
H
X
X: Don't care
Function
D+ port = 1D+ port, D- Port = 1D- Port
D+ port = 2D+ port, D- Port = 2D- Port
Disconnect
©2020
Toshiba Electronic Devices & Storage Corporation
3
2020-06-16
Rev.4.0
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