19-1077; Rev 0; 9/96
卤15kV ESD-Protected, EMC-Compliant, 230kbps
RS-232 Serial Port for Modems
_______________General Description
The MAX3186 is a complete DCE RS-232 serial port
designed to meet the stringent ESD requirements of the
European community. All transmitter outputs and receiv-
er inputs are protected to 卤15kV using IEC 1000-4-2
Air-Gap Discharge, 卤8kV using IEC 1000-4-2 Contact
Discharge, and 卤15kV using the Human Body Model.
The MAX3186 has five RS-232 transmitters, three RS-
232 receivers, and no charge pump, optimizing it for
operation in modem applications. It is guaranteed to
run at data rates up to 230kbps, providing compatibility
with popular software for communicating with personal
computers. Power-supply current is less than 300碌A for
I
DD
and I
SS
, and less than 1mA for I
CC
.
The MAX3186 is available in an SO package and in the
tiny SSOP that further reduces board space.
____________________________Features
o
Enhanced ESD Protection:
卤15kV鈥擧uman Body Model
卤8kV鈥擨EC1000-4-2, Contact Discharge
卤15kV鈥擨EC1000-4-2, Air-Gap Discharge
o
Latchup Free During an ESD Event
o
20-Pin SSOP or SO Packages
o
Guaranteed 230kbps Data Rate
o
Flow-Through Pinout
o
Complete DCE Serial Port
MAX3186
________________________Applications
Modems
ISDN Modems
Instruments
Equipment Meeting IEC1000-4-2
______________Ordering Information
PART
MAX3186CWP
MAX3186CAP
MAX3186EWP
MAX3186EAP
TEMP. RANGE
0掳C to +70掳C
0掳C to +70掳C
-40掳C to +85掳C
-40掳C to +85掳C
PIN-PACKAGE
20 SO
20 SSOP
20 SO
20 SSOP
__________Typical Operating Circuit
__________________Pin Configuration
MAX3186
T1
T2
TTL/CMOS
LOGIC
I/O
RS-232
T3
INTERCONNECTING
T4
CABLE
T5
R1
R2
R3
MAX3185
R1
R2
R3
R4
R5
T1
T2
T3
TTL/CMOS
LOGIC
I/O
TOP VIEW
V
DD
1
T1OUT 2
R1IN 3
T2OUT 4
R2IN 5
R3IN 6
T3OUT 7
T4OUT 8
T5OUT 9
V
SS
10
20 V
CC
19 T1IN
18 R1OUT
17 T2IN
16 R2OUT
15 R3OUT
14 T3IN
13 T4IN
12 T5IN
MAX3186
SO/SSOP
11 GND
________________________________________________________________
Maxim Integrated Products
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For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
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