Datasheet

MAX3453E–MAX3456E
±15kV ESD-Protected USB Transceivers
6 _______________________________________________________________________________________
PIN
MAX3454E/
MAX3455E/
MAX3456E
MAX3453E
TSSOP
THIN QFN
TSSOP
THIN QFN
NAME
FUNCTION
1 15 1 15 V
L
Digital I/O Connections Logic Supply. Connect a +1.65V to
+3.6V supply to V
L
. Bypass V
L
to GND with a 0.1µF ceramic
capacitor.
21——SPD
Speed Selector Input. Connect SPD to GND to select the low-
speed data rate (1.5Mbps). Connect SPD to V
L
to select the full-
speed data rate (12Mbps). The MAX3453E only supports full-
speed operation.
3232RCV
D i ffer enti al Recei ver O utp ut. RC V r esp ond s to the d i ffer enti al i np uts
on D + and D - ( see Tab l es 3, 4) . RC V asser ts l ow i f S U S = V
L
.
4343VP
Receiver Output/Driver Input. VP functions as a receiver output
when OE = V
L
. VP duplicates D+ when receiving. VP functions
as a driver input when OE = GND.
5454VM
Receiver Output/Driver Input. VM functions as a receiver output
when OE = V
L
. VM duplicates D- when receiving. VM functions
as a driver input when OE = GND.
6, 13*
5, 8, 13*, 16
6 5, 8, 16 N.C.
No Connection. Not internally connected.
*Pin 13 is No Connection for MAX3456E only.
7676GNDGround
8787SUS
Suspend Input. Drive SUS low for normal operation. Drive SUS
high to put the MAX3453E–MAX3456E into suspend mode. RCV
asserts low in suspend mode. VP and VM remain active in
suspend mode.
9999OE
Output Enable. Drive OE to GND to enable the transmitter
outputs. Drive OE to V
L
to disable the transmitter outputs. OE
also controls the I/O direction of VP and VM (see Tables 3, 4).
10 10 10 10 D-
USB Input/Output. For OE = GND, D- functions as a USB
output, with VM providing the input signal. For OE = V
L
, D-
functions as a USB input, with VM functioning as a single-ended
receiver output. Connect a 1.5kΩ resistor from D- to V
TRM
for
low-speed (1.5Mbps) operation (MAX3455E/MAX3456E). Drive
ENUM to V
L
to connect the internal 1.5kΩ resistor from D- to
V
TRM
for low-speed (MAX3454E, SPD = GND) operation.
Pin Description