Document
CMOS Digital Integrated Circuits Silicon Monolithic
TC7USB40FT
TC7USB40FT
1. Functional Description
• Dual SPDT USB Switch
2. General
The TC7USB40FT 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) ESD performance: Machine model ≥ ±200 V, Human body model ≥ ±8000 V (7) Power-down protection provided on all inputs and outputs. (8) Package: TSSOP14
4. Packaging and Pin Assignment
TSSOP14
1
2013-02-05
Rev.2.0
5. Marking
TC7USB40FT
6. Block Diagram
Fig. 5.1 Marking (Top view)
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
2
2013-02-05 Rev.2.0
8. Absolute Maximum Ratings (Note)
TC7USB40FT
Characteristics
Symbol Note
Test Condition
Rating
Unit
Supply voltage Input voltage (OE, S) Switch I/O voltage
VCC
VIN
-0.5 to 4.6
V
-0.5 to 4.6
VS
VCC = 0 V or Switch OFF
-0.5 to 4.6
Switch ON
0.5 to VCC +0.5
Clamp diode current
IIK
Control input
Switch
-50
mA
±50
Switch I/O current
IS
50
Power dissipation
PD
200
mW
VCC/ground current
ICC/IGND
±100
mA
Storage temperature
Tstg
-65 to 150
Note:
Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook (“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report and estimated failure rate, etc).
9. Operating Ranges (Note)
Characteristics
Symbol Note
Test Condition
Rating
Unit
Supply voltage Input voltage (OE, S) Switch I/O voltage
Operating temperature Input rise time
VCC VIN VS
Topr dt/dv
VCC = 0 V or Switch OFF Switch ON
2.3 to 4.3 0 to 4.3 0 to 4.3 0 to VCC -40 to 85 0 to 10
V
ns/V
Input fall time
0 to 10
Note: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs and bus inputs must be tied to either VCC or GND.
3
2013-02-05
Rev.2.0
TC7USB40FT
10. Electrical Characteristics 10.1. DC Characteristics (Note) (Unless otherwise specified, Ta = -40 to 85)
Characteristics
Symbol Note
Test Condition
VCC (V) Min Typ. Max Unit
High-level input voltage (OE, S) VIH
Low-level input voltage (OE, S) VIL
Input leakage current (OE, S)
IIN
Power-OFF leakage current
IOFF
VIN = 0 to 4.3 V VIN = VIS = 0 to 4.3 V, See Fig. 11.10
2.3 to 3.0 0.50 ×
V
VCC
3.0 to 4.3 0.46 ×
VCC
2.3 to 4.3
0.25 × VCC
2.3 to 4.3
±1
µA
0
±2
Switch OFF-state leakage
ISZ
current
VIS = 0 to 3.6V, OE = VCC, 2.3 to 4.3
±2
See Fig. 11.11
ON-resistance
RON (Note 1) VIS = 0 V, IIS = 30 mA, See Fig. 11.9
3.0
4.5
6
Ω
VIS = 0.4 V, IIS = 30 mA, See Fig. 11.9
3.0
4.8
6.7
VIS = 3.0 V, IIS = 30 mA, See Fig. 11.9
3.0
10
14
Difference of ON-resistance between switches ON-resistance flatness
Quiescent supply current
∆RON (Note 1) VIS = 0.4 V, 1.0 V, IIS = 30 mA
RON(flat) (Note 1) VIS = 0 V to 1.0 V, IIS = 30 mA
ICC
VIN = VCC or GND,
IOUT = 0 A
∆ICC
VIN = 2.6 V (one input)
3.0
0.35
3.0
1.3
4.3
1
µA
4.3
40
Note: All typical values are at Ta = 25. Note 1: Measured by the voltage drop between D+/D- and 1D+/1D-,2D+/2D- pins at the indicated current through the
switch. On-resistance is determined by the lower of the voltages on the two pins.
10.2. AC Characteristics (Note) (Unless otherwi.