MAX3209E Maxim, MAX3209E Datasheet
MAX3209E
Manufacturer Part Number
MAX3209E
Description
15kV ESD-Protected / 12V / Dual RS-232 Serial Port with Low-Power Standby for Motherboards/Desktops
Manufacturer
Maxim
Datasheet
1.MAX3209E.pdf
(8 pages)
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19-1471; Rev 1; 9/99
The MAX3209E is a complete, dual DTE RS-232 serial
port (6 transmitters, 10 receivers) for motherboards and
desktop PCs that ensures compliance with the stringent
ESD requirements of the European Community. The
device minimizes board space and power consumption
by eliminating the need for a negative power supply; it
integrates two serial ports and a charge pump into a sin-
gle 38-pin TSSOP package.
The MAX3209E features a 50µA low-power standby
mode for compliance with system power-management
requirements. During standby, while the device oper-
ates from the single +3V to +5.5V logic supply, one
receiver on each port remains active, allowing automatic
system wake-up when peripheral communications
resume.
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, making the device ideal
for use in harsh environments or mission-critical equip-
ment. As a result of its robust charge-pump structure,
the MAX3209E guarantees mouse driveability and true
RS-232 operation at data rates up to 460kbps, ensuring
compatibility with PC-to-PC communication software
(such as LapLink
________________________Applications
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.
LapLink is a trademark of Traveling Software.
Typical Operating Circuit appears at end of data sheet.
with Low-Power Standby for Motherboards/Desktops
MAX3209ECUU
MAX3209EEUU
±15kV ESD-Protected, 12V, Dual RS-232 Serial Port
PART
Desktop PCs
Motherboards
Instruments
Equipment Requiring IEC 1000-4-2 Compliance
Telecommunications
Network Servers
™
________________________________________________________________ Maxim Integrated Products
).
-40°C to +85°C
TEMP. RANGE
Ordering Information
0°C to +70°C
General Description
38 TSSOP
38 TSSOP
PIN-PACKAGE
Two Complete Serial Ports in a Single 38-Pin
TSSOP Package
Requires Only +12V Supply and Logic
Supply (+3V to +5.5V)
No Negative Supply Required
One Receiver Active per Port in Standby
for System Wake-Up
460kbps Data Rate; LapLink Compatible
Enhanced ESD Protection
Low 50µA Standby Current
Operates with Either +3V or +5V Logic
Guaranteed Mouse Driveability
Small 0.1µF Capacitors
Flow-Through Pinout
TOP VIEW
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
R10OUT
R5OUT
R4OUT
R3OUT
R2OUT
R1OUT
R6OUT
R7OUT
R8OUT
R9OUT
V
T3IN
T2IN
T1IN
STBY
T4IN
T5IN
T6IN
C1+
V
DD
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
MAX3209E
TSSOP
Pin Configuration
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
R5IN
R4IN
R3IN
R2IN
R1IN
T3OUT
T2OUT
T1OUT
V-
C1-
GND
T4OUT
T5OUT
T6OUT
R6IN
R7IN
R8IN
R9IN
R10IN
Features
1
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