MAXIM MAX3311, MAX3313 Technical data
General Description
The MAX3311/MAX3313 are low-power, +5V EIA/TIA232-compatible transceivers. Both devices have one
transmitter and one receiver. The transceivers have a
proprietary low-dropout transmitter output stage
enabling RS-232-compatible operation from a +5V supply with a single inverting charge pump. These devices
require only three 0.1µF capacitors and will run at data
rates up to 460kbps while maintaining RS-232-compatible output levels.
The MAX3311 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
MAX3313 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
♦ 1µA Low-Power Shutdown (MAX3311)
♦ INVALID Output (MAX3313)
♦ Receiver Active in Shutdown (MAX3311)
♦ Single Transceiver (1Tx/1Rx) in 10-Pin µMAX
♦ RS-232-Compatible Operation
MAX3311/MAX3313
460kbps, 1µA Supply Current,
RS-232-Compatible Transceivers in µMAX
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations
19-1901; Rev 0; 2/01
Ordering Information
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.
Pin Configurations continued at end of data sheet.
Typical Operating Circuit
C1
0.1µF
C2
0.1µF
C
BYPASS
0.1µF
98
1
10
7
6
3
2
4
5
C1+ V-
TOUT
C1-
TIN
RINROUT
V
CC
GND
5kΩ
SHDN (MAX3311)
INVALID (MAX3313)
+5V
MAX3311
MAX3313
CAPACITORS MAY BE POLARIZED OR NONPOLARIZED.
PART TEMP. RANGE PIN-PACKAGE
MAX3311CUB 0°C to +70°C 10 µMAX
MAX3311EUB -40°C to +85°C 10 µMAX
MAX3313CUB 0°C to +70°C 10 µMAX
MAX3313EUB -40°C to +85°C 10 µMAX
TOP VIEW
1
V
CC
2
C1-
3
SHDN
4
5
10
GND
9
MAX3311
µMAX
8
7
6
C1+
V-
TOUTTIN
RINROUT
MAX3311/MAX3313
460kbps, 1µA Supply Current,
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_CUB .......................................................0°C to +70°C
MAX331_EUB ....................................................-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 U N IT S
DC CHARACTERISTICS
Supply Operation Range V
CC
Supply Current SHDN = V
4.5 5 5.5 V
CC
Shutdown Supply Current SHDN = GND (MAX3311 only) 1 10 µA
LOGIC INPUTS (TIN, SHDN)
Input Logic Threshold Low V
Input Logic Threshold High V
0.8 V
IL
2.4 V
IH
Transmitter Input Hysteresis 0.5 V
Input Leakage Current ±0.01 ±1 µA
RECEIVER OUTPUT
Output Voltage Low V
Output Voltage High V
OL
OH
I
= 1.6mA 0.4 V
OUT
I
= -1.0mA
OUT
INVALID OUTPUT (MAX3313 ONLY)
Receiver Input Threshold to
INVALID Output High
Receiver Input Threshold to
INVALID Output Low
Figure 5 -0.3 0.3 V
INVALID Output Low V
INVALID Output High V
Receiver Positive or Negative
Threshold to INVALID High
Receiver Positive or Negative
Threshold to INVALID Low
Figure 5 0.1 µs
Figure 5 30 µs
OL
OH
Figure 5, positive threshold 2.7
Figure 5, negative threshold -2.7
I
= 1.6mA 0.4 V
OUT
I
= -1.0mA VCC - 0.6 V
OUT
, no load 100 250 µA
V
-
V
CC
0.6
CC
0.1
-
V
V
MAX3311/MAX3313
460kbps, 1µA Supply Current,
RS-232-Compatible Transceivers in µMAX
_______________________________________________________________________________________ 3
Note 1:
Not tested—guaranteed by design.
TIMING CHARACTERISTICS
(VCC= +5V, C1 and C2 = 0.1µF, TA= T
MIN
to T
MAX
. Typical values are at TA= +25°C.)
ELECTRICAL CHARACTERISTICS (continued)
(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 U N IT S
RECEIVER INPUT
Input Threshold Low V
Input Threshold High V
0.8 V
IL
2.4 V
IH
Input Hysteresis 0.5 V
Input Resistance 5 kΩ
TRANSMITTER OUTPUT
Transmitter output loaded with 3kΩ to
Output Voltage Swing
Output Resistance (Note 1) V
ground
= 0, transmitter output = ±2V 300 Ω
CC
±3.7 V
Output Short-Circuit Current ±60 mA
Output Leakage Current V
= ±12V, transmitter disabled ±25 µA
OUT
PARAMETER SYMBOL CONDITIONS MIN TYP MAX U N IT S
Maximum Data Rate R
Receiver Propagation Delay
t
PLH
t
PHL
= 3kΩ, C
L
,
Recei ver i np ut to r ecei ver outp ut
C
= 150p F
L
= 1000p F 460 kbps
L
0.15 µs
Transmitter Skew 100 ns
Receiver Skew 50 ns
Transition Region Slew Rate
R
= 3kΩ to 7kΩ, CL = 150pF to 1000p F,
L
m easur ed from +3V to - 3V or fr om - 3V to + 3V
11
V/µs
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