Datasheet

MAX3372E–MAX3379E/MAX3390E–MAX3393E
±15kV ESD-Protected, 1µA, 16Mbps, Dual/Quad
Low-Voltage Level Translators in UCSP
12
Maxim Integrated
Three-State Output Mode
Pull THREE-STATE low to place the MAX3372E–
MAX3379E and MAX3390E–MAX3393E in three-state out-
put mode. Connect THREE-STATE to V
L
(logic-high) for
normal operation. Activating the three-state output mode
disconnects the internal 10kΩ pullup resistors on the I/O
V
CC
and I/O V
L
lines. This forces the I/O lines to a high-
impedance state, and decreases the supply current to
less than 1µA. The high-impedance I/O lines in three-
state output mode allow for use in a multidrop network.
When in three-state output mode, do not allow the voltage
at I/O V
L_
to exceed (V
L
+ 0.3V), or the voltage at I/O
V
CC_
to exceed (V
CC
+ 0.3V).
Thermal Short-Circuit Protection
Thermal overload detection protects the MAX3372E–
MAX3379E and MAX3390E–MAX3393E from short-circuit
fault conditions. In the event of a short-circuit fault, when
the junction temperature (T
J
) reaches +152°C, a thermal
sensor signals the three-state output mode logic to force
the device into three-state output mode. When T
J
has
cooled to +142°C, normal operation resumes.
V
CC
I/O V
L
I/O V
CC
GATE
BIAS
V
L
P P
N
Figure 2a. Functional Diagram, MAX3372E/MAX3377E (1 I/O line)
V
CC
I/O V
L_
I/O V
CC_
GATE
BIAS
V
L
PU1 PU2
N
ONE-SHOT
BLOCK
ONE-SHOT
BLOCK
Figure 2b. Functional Diagram, MAX3373E/MAX3378E (1 I/O line)