
1
LTC1383
1383fa
5V Low Power
RS232 Transceiver
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Operates from a Single 5V Supply
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Low Supply Current: ICC = 220A
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ESD Protection Over ±10kV
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Available in 16-Pin SOIC Narrow Package
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Uses Small Capacitors: 0.1F
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Operates to 120kBaud
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Output Overvoltage Does Not Force Current
Back into Supplies
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RS232 I/O Lines Can Be Forced to ±25V
Without Damage
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Pin Compatible with LT1181A and MAX232A
The LTC
1383 is an ultra-low power 2-driver/2-receiver
RS232 transceiver that operates from a single 5V
supply. The charge pump requires only four space-
saving 0.1F capacitors. The supply current (ICC) of the
transceiver is only 220A with driver outputs unloaded.
The LTC1383 is fully compliant with all data rate and
overvoltage RS232 specifications. The transceiver can
operate up to 120kbaud with a 2500pF, 3k load. Both
driver outputs and receiver inputs can be forced to
±25V without damage and can survive multiple ±10kV
ESD strikes.
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Notebook Computers
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Palmtop Computers
Quiescent Supply Current vs Temperature
TEMPERATURE (°C)
–20
0
QUIESCENT
CURRENT
(
A)
100
200
300
400
600
0
20
40
60
LTC1383 TA02
80
500
TEST CONDITION: VCC = 5V
QUIESCENT
CURRENT
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTC1383 TA01
LTC1383
1
3
0.1F
16
VCC = 5V
2
0.1F
6
0.1F
4
5
232 OUTPUT
14
7
232 OUTPUT
13
232 INPUT
5k
8
232 INPUT
15
11
10
12
9
LOGIC INPUT
LOGIC OUTPUT
5k
300k
VCC
300k
VCC