MAX13234E–MAX13237E
3Mbps RS-232 Transceivers with
Low-Voltage Interface
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +3V to +5.5V, VL = +1.62V to VCC, TA = -40°C to +85°C, C1–C4 = 0.1F, VCC = VL, tested at 3.3V ±10%. Typical values are
at TA = +25°C.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
(All voltages referenced to GND.)
VCC ...................................................................... -0.3V to +6.0V
VL ......................................................................... -0.3V to +6.0V
V+ ........................................................................ -0.3V to +7.0V
V- ......................................................................... +0.3V to -7.0V
(V+) + |(V-)| ..................................................................... +13.0V
T_IN, FORCEOFF, FORCEON ..................... -0.3V to (VL + 0.3V)
R_IN ................................................................................... ±25V
T_OUT.............................................................................. ±13.2V
R_OUT, READY ........................................... -0.3V to (VL + 0.3V)
Short-Circuit Duration
T_OUT to GND ......................................................... Continuous
Continuous Power Dissipation (TA = +70°C)
16-Pin TQFN (derate 20.8mW/°C above +70°C) ..... 1666mW
20-Pn TSSOP (derate 10.9mW/°C above +70°C) ...... 879mW
20-Pin TQFN (derate 21.3mW/°C above +70°C) ..... 1702mW
Junction-to-Case Thermal Resistance (θJC) (Note 1)
16-Pin TQFN ................................................................. 2°C/W
20-Pin TSSOP ............................................................. 20°C/W
20-Pin TQFN ................................................................. 2°C/W
Junction-to-Ambient Thermal Resistance (θJA) (Note 1)
16-Pin TQFN ............................................................... 30°C/W
20-Pin TSSOP ............................................................. 73°C/W
20-Pin TQFN ............................................................... 29°C/W
Operating Temperature Range
MAX1323x Operating Temperature Range .... -40°C to +85°C
MAX1323x Operating Temperature Range .. -40°C to +105°C
Storage Temperature Range ........................... -65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
VCC
3
5.5
V
Logic Supply Voltage
VL
1.62
VCC
V
FORCEOFF = FORCEON = VL, no loads
0.3
1
mA
VL = 0V
1
10
VCC Supply Current
ICC
AutoShutDown Plus, FORCEOFF = VL,
FORCEON = GND, all R_IN idle, all T_IN
idle.
110
A
VCC Shutdown Current
ICCSH
FORCEOFF = GND
1
10
A
VL Supply Current
IL
VCC = +5.5V
1
10
A
VL Shutdown Current
ILSH
FORCEOFF = GND
1
10
A
LOGIC INPUTS (T_IN, FORCEON,
FORCEOFF, Referred to VL)
Input Threshold Low
VIL
Tested at room temperature only
1/3 x VL
V
Input Threshold High
VIH
Tested at room temperature only
2/3 x VL
V
Input Hysteresis
60
mV
Input Leakage Current
±0.01
±1
A
RECEIVER OUTPUTS (READY)
Output-Voltage Low
VOL
IOUT = 0.8mA
0.4
V
Output-Voltage High
VOH
IOUT = -0.5mA
VL - 0.6 VL - 0.1
V