19-1186; Rev 1; 10/98
±15kV ESD-Protected, EMC-Compliant, 230kbps,
Dual RS-232 Serial Port for Motherboards/Desktops
_______________General Description
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
Discharge, ±8kV using IEC 1000-4-2 Contact
Discharge, and ±15kV using the Human Body Model.
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-
tions. Power-supply current is less than 1mA for I
DD
and I
SS
, and less than 3mA for I
CC
.
The MAX3187 is available in a space-saving 36-pin
SSOP package.
____________________________Features
o
Enhanced ESD Protection:
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
o
Latchup Free During an ESD Event
o
36-Pin SSOP Package
o
Guaranteed 230kbps Data Rate
o
Flow-Through Pinout
o
Two Complete DTE Serial Ports
o
6 RS-232 Drivers and 10 RS-232 Receivers
MAX3187
______________Ordering Information
PART
MAX3187CAX
MAX3187EAX
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
36 SSOP
36 SSOP
________________________Applications
Desktop PC
Motherboards
Instruments
Equipment Meeting IEC 1000-4-2
Typical Operating Circuit appears at end of data sheet.
____________________________________________________________Pin Configuration
R1OUT
R2OUT
R3OUT
T1IN
T2IN
R4OUT
T3IN
R5OUT
V
CC
1
2
3
4
5
6
7
8
9
36 R1IN
35 R2IN
34 R3IN
33 T1OUT
TOP VIEW
MAX3187
32 T2OUT
31 R4IN
30 T3OUT
29 R5IN
28 V
DD
27 GND
26 R6IN
25 R7IN
24 R8IN
23 T4OUT
22 T5OUT
21 R9IN
20 T6OUT
19 R10IN
V
SS
10
R6OUT 11
R7OUT 12
R8OUT 13
T4IN 14
T5IN 15
R90UT 16
T6IN 17
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.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
