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PDF MAX3187 Data sheet ( Hoja de datos )
| Número de pieza | MAX3187 | |
| Descripción | 15kV ESD-Protected / EMC-Compliant / 230kbps / Dual RS-232 Serial Port for Motherboards/Desktops | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-1186; Rev 1; 10/98
±15kV ESD-Protected, EMC-Compliant, 230kbps,
Dual RS-232 Serial Port for Motherboards/Desktops
_______________General Description ____________________________Features
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.
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
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 IDD
and ISS, and less than 3mA for ICC.
The MAX3187 is available in a space-saving 36-pin
SSOP package.
________________________Applications
Desktop PC
Motherboards
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
______________Ordering Information
PART
MAX3187CAX
MAX3187EAX
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
36 SSOP
36 SSOP
Instruments
Equipment Meeting IEC 1000-4-2
Typical Operating Circuit appears at end of data sheet.
____________________________________________________________Pin Configuration
TOP VIEW
R1OUT 1
R2OUT 2
R3OUT 3
T1IN 4
T2IN 5
R4OUT 6
T3IN 7
R5OUT 8
VCC 9
VSS 10
R6OUT 11
R7OUT 12
R8OUT 13
T4IN 14
T5IN 15
R90UT 16
T6IN 17
R10OUT 18
MAX3187
36 R1IN
35 R2IN
34 R3IN
33 T1OUT
32 T2OUT
31 R4IN
30 T3OUT
29 R5IN
28 VDD
27 GND
26 R6IN
25 R7IN
24 R8IN
23 T4OUT
22 T5OUT
21 R9IN
20 T6OUT
19 R10IN
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.
1 page  
±15kV ESD-Protected, EMC-Compliant, 230kbps,
Dual RS-232 Serial Port for Motherboards/Desktops
______________________________________________________________Pin Description
PIN
1, 2, 3, 6, 8, 11,
12, 13, 16, 18
4, 5, 7, 14, 15, 17
9
10
27
28
19, 21, 24, 25, 26,
29, 31, 34, 35, 36
20, 22, 23, 30, 32, 33
NAME
R1OUT–R10OUT
T1IN–T6IN
VCC
VSS
GND
VDD
R10IN–R1IN
T6OUT–T1OUT
FUNCTION
Receiver Outputs, swing between GND and VCC
Transmitter Inputs
Supply-Voltage Input, 4.5V to 5.5V
Supply-Voltage Input, -10.8V to -13.2V
Ground. Connect system to ground.
Supply-Voltage Input, 10.8V to 13.2V
Receiver Inputs
Transmitter Outputs, swing between VDD and VSS
3.0V
DRIVER
INPUT
1.5V
0V
tPHL
VOUT
tF2
tF1
tPLH
3.3V
3.0V
-3.0V
-3.3V
tR2
tR1
SIGNAL
GENERATOR
RL
VOH
0V
VOL
CL
Figure 1. Slew-Rate Test Circuit and Timing Diagram
_______________Detailed Description
±15kV ESD Protection
As with all Maxim devices, ESD-protection structures
are incorporated on all pins to protect against electro-
static discharges (ESD) encountered during handling
and assembly. The MAX3187 driver outputs and receiv-
er inputs have extra protection against static electricity
found in normal operation. Maxim’s engineers devel-
oped state-of-the-art structures to protect these pins
against ±15kV ESD, without damage. After an ESD
event, the MAX3187 continues working without latchup.
ESD protection can be tested in several ways. The
transmitter outputs and receiver inputs are character-
ized for protection to the following:
1) ±15kV using the Human Body Model
2) ±8kV using the Contact-Discharge Method specified
in IEC 1000-4-2 (formerly IEC 801-2)
3) ±15kV using the Air-Gap Method specified in
IEC 1000-4-2 (formerly IEC 801-2)
ESD Test Conditions
ESD performance depends on a number of conditions.
Contact Maxim for a reliability report that documents
test setup, methodology, and results.
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MAX3187.PDF ] | |
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