MAXIM MAX3311E, MAX3313E Technical data
General Description
The MAX3311E/MAX3313E are low-power, 5V EIA/TIA232-compatible transceivers. All transmitter outputs
and receiver inputs are protected to ±15kV using the
Human Body Model, making these devices ideal for
applications where more robust transceivers are
required.
Both devices have one transmitter and one receiver.
The transmitters have a proprietary low-dropout transmitter output stage enabling RS-232-compatible operation from a +5V supply with a single inverting charge
pump. These transceivers require only three 0.1µF
capacitors and will run at data rates up to 460kbps
while maintaining RS-232-compatible output levels.
The MAX3311E features a 1µA shutdown mode. In
shutdown the device turns off the charge pump, pulls
V- to ground, and the transmitter output is disabled.
The MAX3313E features an INVALID output that asserts
high when an active RS-232 cable signal is connected,
signaling to the host that a peripheral is connected to
the communication port.
________________________Applications
Digital Cameras
PDAs
GPS
POS
Telecommunications
Handy Terminals
Set-Top Boxes
Features
♦ ESD Protection for RS-232-Compatible I/O Pins
±15kV—Human Body Model
♦ 1µA Low-Power Shutdown (MAX3311E)
♦ INVALID Output (MAX3313E)
♦ Receiver Active in Shutdown (MAX3311E)
♦ Single Transceiver (1Tx/1Rx) in 10-Pin µMAX
Package
MAX3311E/MAX3313E
±15kV ESD-Protected, 460kbps, 1µA,
RS-232-Compatible Transceivers in µMAX
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations
19-1910; Rev 0; 1/01
Ordering Information
1
2
3
4
5
10
9
8
7
6
GND
C1+
VTOUTTIN
SHDN
C1-
V
CC
MAX3311E
µMAX
TOP VIEW
RINROUT
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
C1
0.1µF
C2
0.1µF
C
BYPASS
0.1µF
98
1
10
7
6
3
2
4
5
C1+ V-
TOUT
RIN
C1-
TIN
ROUT
V
CC
GND
5k
SHDN (MAX3311E)
INVALID (MAX3313E)
+5V
MAX3311E
MAX3313E
CAPACITORS MAY BE POLARIZED OR NONPOLARIZED.
Typical Operating Circuit
Pin Configurations continued at end of data sheet.
PART
TEMP. RANGE
PIN-PACKAGE
MAX3311ECUB 0°C to +70°C 10 µMAX
MAX3311EEUB -40°C to +85°C 10 µMAX
MAX3313ECUB 0°C to +70°C 10 µMAX
MAX3313EEUB -40°C to +85°C 10 µMAX
MAX3311E/MAX3313E
±15kV ESD-Protected, 460kbps, 1µA,
RS-232-Compatible Transceivers in µMAX
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= +5V, C1 and C2 = 0.1µF, TA= T
MIN
to T
MAX
. Typical values are at TA= +25°C.)
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.
VCCto GND.............................................................-0.3V to +6V
V- to GND................................................................+0.3V to -7V
V
CC
+ |V-|............................................................................+13V
Input Voltages
TIN, SHDN to GND...............................................-0.3V to +6V
RIN to GND......................................................................±25V
Output Voltages
TOUT to GND................................................................±13.2V
ROUT, INVALID to GND.....................…-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
TOUT to GND.........................................................Continuous
Continuous Power Dissipation
10-Pin µMAX (derate 5.6mW/°C above +70°C)..........444mW
Operating Temperature Ranges
MAX331_ECUB.................................................0°C to +70°C
MAX331_EEUB..............................................-40°C to +85°C
Junction Temperature.....................................................+150°C
Storage Temperature Range............................-65°C to +150°C
Lead Temperature (soldering, 10s)................................+300°C
PARAMETER
SYMBOL
CONDITIONS MIN TYP
MAX
UNITS
DC CHARACTERISTICS
Supply Operation Range V
CC
4.5 5 5.5 V
Supply Current SHDN = V
CC
, no load 100 250 µA
Shutdown Supply Current SHDN = GND (MAX3311E only) 1
µA
LOGIC INPUTS (TIN, SHDN)
Input Logic Threshold Low V
IL
0.8 V
Input Logic Threshold High V
IH
2.4 V
Transmitter Input Hysteresis 0.5 V
Input Leakage Current
±1 µA
RECEIVER OUTPUT
Output Voltage Low V
OL
I
OUT
= 1.6mA 0.4 V
Output Voltage High V
OH
I
OUT
= -1.0mA
V
INVALID OUTPUT (MAX3313E only)
Figure 7, positive threshold 2.7
Receiver Input Threshold to
INVALID Output High
Figure 7, negative threshold -2.7
V
Receiver Input Threshold to
INVALID Output Low
Figure 7 -0.3 0.3
V
INVALID Output Low V
OL
I
OUT
= 1.6mA 0.4 V
INVALID Output High V
OH
I
OUT
= -1.0mA
V
Receiver Positive or Negative
Thresholds to INVALID High
Figure 7 0.1 µs
Receiver Positive or Negative
Threshold to INVALID Low
Figure 7 30 µs
10
±0.01
V
CC
- 0.6 V
CC
- 0.1
V
CC
- 0.6
MAX3311E/MAX3313E
±15kV ESD-Protected, 460kbps, 1µA,
RS-232-Compatible Transceivers in µMAX
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +5V, C1 and C2 = 0.1µF, TA= T
MIN
to T
MAX
. Typical values are at TA= +25°C.)
TIMING CHARACTERISTICS
(VCC= +5V, C1 and C2 = 0.1µF, TA= T
MIN
to T
MAX
. Typical values are at TA= +25°C.)
PARAMETER
SYMBOL
CONDITIONS MIN TYP
MAX
UNITS
RECEIVER INPUT
Input Threshold Low V
IL
0.8 V
Input Threshold High V
IH
2.4 V
Input Hysteresis 0.5 V
Input Resistance 5 kΩ
TRANSMITTER OUTPUT
Output Voltage Swing
Tr ansm i tter outp ut l oad ed w i th 3kΩ to
±3.7 V
Output Resistance (Note 1) V
CC
= 0, transmitter output = ±2V 300 Ω
Output Short-Circuit Current ±60 mA
Output Leakage Current V
OUT
= ±12V, transmitter disabled
±25 µA
ESD PERFORMANCE (TRANSMITTER OUTPUT, RECEIVER INPUT)
ESD-Protection Voltage Human Body Model ±15 kV
Note 1: Not tested—guaranteed by design.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Maximum Data Rate R
Receiver Propagation Delay t
PLH/tPHL
= 3kΩ, C
L
= 1000pF 460 kbps
L
Receiver input to receiver output,
= 150pF
C
L
0.15 µs
Transmitter Skew 100 ns
Receiver Skew 50 ns
RL = 3kΩ to 7kΩ, CL = 150pF to 1000pF,
Transition Region Slew Rate
measured from +3V to -3V or from -3V to +3V
11
V/µs
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