19-1628; Rev 0; 2/00
1Mbps, 1µA RS-232 Transmitters in SOT23-6
General Description
Features
The MAX3188/MAX3189 single RS-232 transmitters in a
SOT23-6 package are for space- and cost-constrained
applications requiring minimal RS-232 communications.
These devices consume only 150µA of supply current
from ±±.5ꢀ to ±6ꢀ supplies. RS-232 data transmission
is guaranteed up to 250kbps with the MAX3188 and up
to 1Mbps with the MAX3189.
ꢀ Small 6-Pin SOT23 Package
ꢀ 150µA Supply Current
ꢀ Shutdown Reduces Supply Current to 1µA
ꢀ Guaranteed Data Rate
1Mbps (MAX3189)
250kbps (MAX3188)
The MAX3188/MAX3189 transmitters are inverting level
translators that convert CMOS-logic levels to 5ꢀ
EIA/TIA-232 levels. They feature a shutdown input that
reduces current consumption to only 1µA and forces
the transmitter output into a high-impedance state. The
MAX3188/MAX3189 transmitters have a standard
inverting output.
ꢀ Three-State RS-232 Transmitter Output
ꢀ No External Components Required
Ordering Information
Applications
Diagnostic Ports
TOP
MARK
PART
TEMP. RANGE PIN-PACKAGE
Telecommunications
Networking Equipment
Set-Top Boxes
MAX3188EUT-T
MAX3189EUT-T
-±0°C to +85°C 6 SOT23-6
-±0°C to +85°C 6 SOT23-6
AAHJ
AAHK
Digital Cameras
Hand-Held Equipment
Typical Operating Circuit
Pin Configuration
TOP VIEW
1
SHDN
6
5
4
+5.4V
-5.4V
V
V
EE
CC
SHDN
GND
TIN
1
2
3
6
5
4
V
V
CC
C
C
BYPASS2
BYPASS1
0.1µF
0.1µF
MAX3188
MAX3189
MAX3188
MAX3189
EE
TIN
TOUT
3
TOUT
GND
2
SOT23-6
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.