MAX3344EEUE+ Maxim Integrated Products, MAX3344EEUE+ Datasheet - Page 6

• Manufacturer Part Number: MAX3344EEUE+
• Description: IC USB TXRX W/DETECT 16-TSSOP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3344EEUE+

• Number Of Drivers/receivers: 1/1
• Protocol: USB 2.0
• Voltage - Supply: 4 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX3344E/MAX3345E are bidirectional transceivers
that convert single-ended or differential logic-level signals
to differential USB signals, and convert differential USB
signals to single-ended or differential logic-level signals.
The MAX3344E/MAX3345E are operational from V
5.5V to V
teed for V
1.5kΩ pullup resistor that connects and disconnects D+
to VTRM (see the Functional Diagram).
The MAX3344E/MAX3345E are tolerant to power seq-
uencing with either V
±15kV ESD-Protected USB Transceivers
in UCSP with USB Detect
6
TSSOP
_______________________________________________________________________________________
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
PIN
CC
CC
UCSP
= 3V (electrical specifications are not guaran-
D2
D1
C2
C1
C4
D4
D3
C3
B1
B2
A1
A2
B3
A3
A4
B4
< 4V). Both devices include an internal
USB_DET
CC
NAME
MODE
ENUM
SUSP
VTRM
VMO
GND
RCV
VPO
Detailed Description
V
VMI
OE
VPI
D+
V
D-
CC
> V
L
L
or V
O U T PU T
IN PU T /
Output
Output
Output
Output
Output
Output
Power
Power
Power
Power
Input/
Input/
Input
Input
Input
Input
Input
Input
L
> V
CC
. Additionally,
Receiver Output. Single-ended CMOS output. RCV responds to the differential input
on D+ and D-.
Logic-Level Data Input. VPO is level translated to D+.
Mode-Control Input. Selects differential (mode 1) or single-ended (mode 0) input for
the system side when converting logic-level signals to USB level signals. Force
MODE high to select mode 1. Force MODE low to select mode 0.
Logic-Level Data Input. VMO is level translated to D-.
Output Enable. Drive OE low to enable data transmission on D+ and D-. Drive OE
high to disable data transmission or to receive data.
Suspend Input. Drive SUSP low for normal operation. Drive SUSP high for low-power
state. In low-power state, RCV is low and VPI/VMI are active.
Logic-Level Data Output. VPI is the level-translated value of D+.
Logic-Level Data Output. VMI is the level-translated value of D-.
Enumerate. Drive ENUM high to connect the internal 1.5kΩ resistor from D+ to 3.3V.
Drive ENUM low to disconnect the internal 1.5kΩ resistor.
USB-Side Power-Supply Input. Connect V
Bypass V
Ground
Negative USB Differential Data Input/Output. Connect to the USB’s D- signal through
a 23.7Ω 1% resistor.
Positive USB Differential Data Input/Output. Connect to the USB’s D+ signal through
a 23.7Ω 1% resistor.
Reg ul ated Outp ut V ol tag e. V TRM p r ovi d es a 3.3V outp ut d er i ved fr om V
V TRM to G N D w i th a 1µF ( m i n) l ow - E S R cap aci tor , such as cer am i c or p l asti c fi l m typ es.
S ystem - S i d e P ow er - S up p l y Inp ut. C onnect to the system ’ s l og i c- l evel p ow er sup p l y,
1.65V to 3.6V .
USB Detector Output. A high at USB_DET signals to the ASIC that V
low at USB_DET indicates that V
threshold is between 3.6V (min) and 4V (max), while the MAX3345E USB_DET
threshold is between 1V (min) and 2.8V (max).
CC
CC
to GND with a 1µF ceramic capacitor.
=
the USB I/O, D+ and D-, and V
±15kV. The MAX3344E/MAX3345E can receive USB
power (V
operate with logic supplies (V
still meeting the USB physical layer specifications. The
MAX3344E/MAX3345E support full-speed (12Mbps)
USB specification 2.0 operation.
The MAX3344E/MAX3345E have an enumerate feature
that functions when power is applied. Driving ENUM low
disconnects the internal 1.5kΩ pullup resistor from D+
enumerating the USB. This is useful if changes in commu-
nication protocol are required while power is applied, and
while the USB cable is connected.
CC
CC
) directly from the USB connection and
is not present. The MAX3344E USB_DET
FUNCTION
CC
to the incoming USB power supply.
Pin Description
CC
L
) down to 1.65V, while
are ESD protected to
C C
CC
. Byp ass
is present. A