19-1186; Rev 1; 10/98
±15kV ESD-Prote c te d, EMC-Com plia nt, 230kbps ,
Dua l RS-232 Se ria l Port for Mothe rboa rds /De s ktops
MAX3187
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX3187 complete, dual DTE RS-232 serial port
meets the stringent ESD requirements of the European
Community. All transmitter outputs and receiver inputs
are protected to ±15kV using IEC 1000-4-2 Air-Gap
Dis c ha rg e , ± 8kV us ing IEC 1000-4-2 Conta c t
Discharge, and ±15kV using the Human Body Model.
♦ Enhanced ESD Protection:
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
♦ Latchup Free During an ESD Event
♦ 36-Pin SSOP Package
The MAX3187’s six RS-232 transmitters and ten RS-232
receivers require no charge pump. Guaranteed to run
at data rates up to 230kbps, the MAX3187 is optimized
for desktop PC and motherboard applications, and is
compatible with popular software for PC communica-
♦ Guaranteed 230kbps Data Rate
♦ Flow-Through Pinout
♦ Two Complete DTE Serial Ports
♦ 6 RS-232 Drivers and 10 RS-232 Receivers
tions. Power-supply current is less than 1mA for I
DD
and I , and less than 3mA for I
.
SS
CC
The MAX3187 is available in a space-saving 36-pin
SSOP package.
______________Ord e rin g In fo rm a t io n
________________________Ap p lic a t io n s
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
36 SSOP
Desktop PC
MAX3187CAX
MAX3187EAX
-40°C to +85°C
36 SSOP
Motherboards
Instruments
Typical Operating Circuit appears at end of data sheet.
Equipment Meeting IEC 1000-4-2
____________________________________________________________P in Co n fig u ra t io n
R1OUT
R2OUT
R3OUT
T1IN
1
2
36 R1IN
35 R2IN
34 R3IN
33 T1OUT
32 T2OUT
31 R4IN
30 T3OUT
29 R5IN
TOP VIEW
3
4
T2IN
5
MAX3187
R4OUT
T3IN
6
7
R5OUT
8
V
CC
9
28 V
DD
V
10
27 GND
26 R6IN
25 R7IN
24 R8IN
23 T4OUT
22 T5OUT
SS
R6OUT 11
R7OUT 12
R8OUT 13
T4IN 14
T5IN 15
R90UT 16
T6IN 17
R9IN
21
20 T6OUT
19 R10IN
R10OUT 18
SSOP
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
For small orders, phone 1-800-835-8769.