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MAX3314ESA+

P1-P3P4-P6
General Description
The MAX3314 is a ±5V powered EIA/TIA-232-compati-
ble interface. It has one transmitter and one receiver in
a flow-through architecture. The transmitter has a low-
dropout output stage providing minimum RS-232-com-
patible ±3.7V output levels while driving 3kΩ and
1000pf at 460kbps. Both +5V and -5V are supplied
externally.
The MAX3314 has a SHDN function that reduces sup-
ply current to 1µA. The transmitter is disabled and put
into 3-state mode while the receiver remains active.
The MAX3314 is available in 8-pin SOT23, µMAX and
SO packages.
________________________Applications
Digital Cameras
PDA
GPS
POS
Telecommunications
Handy Terminals
Set-Top Boxes
Features
♦ 1µA Low-Power Shutdown with Receiver Active
♦ 30µA Operating Supply Current
♦ 460kbps (min) Data Rate
♦ 8-Pin SOT23 Package
♦ RS-232-Compatible Levels
MAX3314
460kbps, 1µA, RS-232-Compatible Transceiver
________________________________________________________________ Maxim Integrated Products 1
RIN
TOUTTIN
1
2
8
7
GND
V-SHDN
ROUT
V
CC
SOT23/µMAX/SO
TOP VIEW
3
4
6
5
MAX3314
Pin Configuration
C
BYPASS
0.1µF
2
7
1
8
5
5kΩ
6
4
3
SHDN
V-
TOUT
RIN
TIN
ROUT
V
CC
GND
+5V
MAX3314
CAPACITORS MAY BE POLARIZED OR UNPOLARIZED.
-5V
0.1µF
Typical Operating Circuit
19-1725; Rev 1a; 3/01
Ordering Information
PART TEMP. RANGE PIN-PACKAGE
MAX3314CKA 0°C to +70°C 8 SOT23
MAX3314CUA 0°C to +70°C 8 µMAX
MAX3314CSA 0°C to +70°C 8 SO
MAX3314EKA -40°C to +85°C 8 SOT23
MAX3314EUA -40°C to +85°C 8 µMAX
MAX3314ESA -40°C to +85°C 8 SO
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX3314
460kbps, 1µA, RS-232-Compatible Transceiver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V- = -5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +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.
Note 1: Not tested—guaranteed by design.
V
CC
to GND..............................................................-0.3V to +6V
V- to GND .................................................................+0.3V to -6V
Input Voltages
TIN, SHDN to GND ..............................................-0.3V to +6V
RIN to GND .....................................................................±25V
Output Voltages
TOUT to GND...............................................................±13.2V
ROUT .................................................…-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
TOUT to GND ........................................................Continuous
Continuous Power Dissipation
8-Pin SOT23 (derate 9.7mW/°C above +70°C)...........777mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) ............300mW
8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW
Operating Temperature Ranges
MAX3314C_A.....................................................0°C to +70°C
MAX3314E_A..................................................-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
Positive Supply Operating
Range
V
CC
4.75 5 5.25 V
Negative Supply Operating
Range
V- -4.75 -5 -5.25 V
Positive Supply Current SHDN = V
CC
, no load 30 100 µA
Negative Supply Current SHDN = V
CC
, no load 15 30 µA
Shutdown Supply Current SHDN = GND 1 10 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 ±0.01 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
CC
- 0.3
V
CC
- 0.1
V
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
Transmitter output loaded with 3kΩ to
ground
±3.7 V
Output Resistance (Note 1) V
CC
= V- = 0, transmitter output = ±2V 300 Ω
Output Short-Circuit Current ±60 mA
Output Leakage Current V
OUT
= ±12V, transmitter disabled
25
µA
MAX3314
460kbps, 1µA, RS-232-Compatible Transceiver
_______________________________________________________________________________________ 3
TIMING CHARACTERISTICS
(V
CC
= +5V, V- = -5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Maximum Data Rate
R
L
= 3kΩ, C
L
=1000pf, transmitter switching 460 kbps
t
PLH
Receiver input to receiver output,
C
L
= 150pF
0.15
Receiver Propagation Delay
t
PHL
Receiver input to receiver output,
C
L
= 150pF
0.15
µs
Transmitter Skew
100 ns
Receiver Skew
50 ns
Transition Region Slew Rate
R
L
= 3kΩ to 7kΩ, C
L
= 150pF to 1000pF,
measured from +3V to -3V or from -3V to +3V
8 V/µs
Typical Operating Characteristics
(V
CC
= +5V, V- = -5V, 250kbps data rate, transmitter loaded with 3kΩ and C
L
, T
A
= +25°C, unless otherwise noted.)
0
2
1
5
4
3
8
7
6
9
0 1000500 1500 2000 2500 3000
SLEW RATE vs. LOAD CAPACITANCE
MAX3314-01
LOAD CAPACITANCE (pF)
SLEW RATE (V/us)
SLEW+
SLEW-
-6
-3
-4
-5
1
-1
0
-2
5
3
4
2
6
0 1000500 1500 2000 2500 3000
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX3314-02
LOAD CAPACITANCE (pF)
TRANSMITTER OUTPUT VOLTAGE (V)
20kbps/120kbps
460kbps/250kbps
460kbps/250kbps
20kbps/120kbps
0
1.5
1.0
0.5
3.0
2.5
2.0
5.0
4.0
4.5
3.5
5.5
0 1000500 1500 2000 2500 3000
SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX3314-03
LOAD CAPACITANCE (pF)
SUPPLY CURRENT (mA)
120kbps
20kbps
250kbps
460kbps
Pin Description
PIN NAME FUNCTION
1V
CC
± 5% E xter nal P ow er S up p l y. D ecoup l e w i th a 0.1µF cap aci tor to g r ound .
2 SHDN Shutdown Active Low. 0 = OFF, 1 = ON.
3 ROUT TTL/CMOS Receiver Output
4 TIN TTL/CMOS Transmitter Input
5 TOUT RS-232-Compatible Transmitter Output
6 RIN RS-232-Compatible Receiver Input
7V-±5% E xter nal P ow er S up p l y. D ecoup l e w i th a 0.1µF cap aci tor to g r ound .
8 GND Ground
P1-P3P4-P6

MAX3314ESA+

Mfr. #:
Buy MAX3314ESA+
Manufacturer:
Maxim Integrated
Description:
RS-232 Interface IC 460kbps 1uA Transceiver
Lifecycle:
New from this manufacturer.
Delivery:
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