MAX3346EEUD+ Maxim Integrated Products, MAX3346EEUD+ Datasheet - Page 8

• Manufacturer Part Number: MAX3346EEUD+
• Description: IC USB TXRX ESD PROTECT 14TSSOP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3346EEUD+

• Number Of Drivers/receivers: 1/1
• Protocol: USB 2.0
• Voltage - Supply: 4 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

±15kV ESD-Protected USB Transceiver
in UCSP
Connect V
1). Connect V
V
MAX3346E can derive power from a single Li+ battery.
Connect the battery to V
+3.0V for V
Additionally, the MAX3346E can derive power from a
3.3V ±10% voltage regulator. Connect V
to an external +3.3V voltage regulator.
Connect V
unconnected or connect to GND. D+ and D- enter a tri-
state mode and V
ply current. D+ and D- withstand external signals up to
+5.5V in disable mode (Table 2).
Connect V
(or V
D+ and D- enter a tri-state mode, allowing other circuit-
ry to share the USB D+ and D- lines, and V
less than 20µA of supply current. D+ and D- withstand
external signals up to +5.5V in sharing mode (Table 2).
8
Table 1. Power-Supply Configurations
Table 2. Disable-Mode and Sharing-Mode Configurations
V
V
D+ and D-
SPEED, SUSP, OE, ENUM
CC
CC
L
_______________________________________________________________________________________
/VTRM
CC
GND or floating
to a +4.0V to +5.5V supply. Alternatively, the
+4.0 to +5.5
+3.1 to +4.5
+3.0 to +3.6
+3.0 to +5.5
V
and V
CC
L
CC
L
CC
INPUTS/OUTPUTS
(V)
and V
to a system power supply and leave V
L
to a system power supply and leave V
as low as +3.1V.
VTRM
Applications Information
to a +1.65V to +3.6V supply. Connect
CC
Power-Supply Configurations
CC
) unconnected or connect to GND.
consumes less than 20µA of sup-
to system power supplies (Table
+3.0 to +3.6 Input
CC
+3.3 Output
+3.3 Output
Normal Operating Mode
. VTRM remains above
VTRM (V)
Output
Output
• +5V input/+3.3V output
• +3.3V input/+3.3V output
• +3.7V input/+3.3V output
Floating or connected to GND
High impedance
High impedance
Sharing Mode
Disable Mode
CC
L
and VTRM
consumes
GND or floating
DISABLE MODE
+1.65 to +3.6
+1.65 to +3.6
+1.65 to +3.6
+1.65 to +3.6
CC
L
V
L
(V)
OE controls the direction of communication through the
device. With OE low, the MAX3346E transfers data from the
system side to the USB side. With OE high, the MAX3346E
transfers data from the USB side to the system side.
The MAX3346E allows software control of USB enumera-
tion. USB specification 1.1 requires a 1.5kΩ pullup resistor
to D+ or D- to set the transmission speed (see the SPEED
section). Enumerating the USB requires removing the 1.5kΩ
resistor from the circuit, and is accomplished with the
MAX3346E by driving ENUM low. With ENUM high, the volt-
age at SPEED determines how the internal resistor is con-
nected (see the Functional Diagram).
MODE is a control input that selects whether differential
or single-ended logic signals are recognized by the
system side of the MAX3346E (Table 3).
If MODE is forced high, differential input is selected. With
differential input selected, outputs D+ and D- follow the
differential inputs at VP and VM. If VP and VM are both
forced low, an SE0 condition is forced on the USB.
Drive MODE and VM low for single-ended input mode.
With single-ended input selected, the differential sig-
nal on D+ and D- is controlled by VP. If VM is high
when MODE is low, D- and D+ are both low, forcing
an SE0 condition.
Normal mode
Battery supply
Voltage regulator supply
Sharing mode
Disable mode
CONFIGURATION
Floating or connected to GND
+1.65V to +3.6V input
High impedance
High impedance
SHARING MODE
Device Control
NOTES
Table 2
Table 2
—
—
—
MODE
ENUM
OE