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DS275EN+

Description
IC TXRX LINE-PWR RS232 14-TSSOP
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size125KB,8 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

DS275EN+ Overview

IC TXRX LINE-PWR RS232 14-TSSOP

DS275EN+ Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeTSSOP
package instructionTSSOP,
Contacts14
Reach Compliance Codecompliant
ECCN codeEAR99
Differential outputNO
Number of drives1
Input propertiesSCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-232-E
JESD-30 codeR-PDSO-G14
JESD-609 codee3
length5 mm
Humidity sensitivity level1
Number of functions1
Number of terminals14
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum receive delay
Number of receiver bits1
Maximum seat height1.1 mm
Maximum supply voltage5.5 V
Minimum supply voltage4.5 V
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width4.4 mm
Base Number Matches1
DS275
Line-Powered RS-232 Transceiver Chip
www.dalsemi.com
FEATURES
Low-power serial transmitter/receiver for
battery-backed systems
Transmitter steals power from receive signal
line to save power
Ultra-low static current, even when connected
to RS-232-E port
Variable transmitter level from +5 to +12
volts
Compatible with RS-232-E signals
Available in 8-pin, 150 mil wide SOIC
package (DS275S)
Low-power CMOS
PIN ASSIGNMENT
RX
OUT
V
DRV
TX
IN
GND
1
2
3
4
8
7
6
5
V
CC
RX
IN
NC
TX
OUT
DS275 8-Pin DIP (300-mil)
DS275 8-Pin SOIC (150-mil)
RX
OUT
NC
V
DRV
NC
TX
IN
NC
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
NC
NC
RX
IN
NC
NC
TX
OUT
ORDERING INFORMATION
DS275
DS275S
DS275E
8-pin DIP
8-pin SOIC
14-pin TSSOP
RX
OUT
V
DRV
TX
IN
GND
TX
OUT
NC
RX
IN
V
CC
DS275E 14-Pin TSSOP
PIN DESCRIPTION
- RS-232 Receiver Output
- Transmit driver +V
- RS-232 Driver Input
- System Ground (0V)
- RS-232 Driver Output
- No Connection
- RS-232 Receive Input
-System Logic Supply (+5V)
DESCRIPTION
The DS275 Line-Powered RS-232 Transceiver Chip is a CMOS device that provides a low-cost, very
low-power interface to RS-232 serial ports. The receiver input translates RS-232 signal levels to common
CMOS/TTL levels. The transmitter employs a unique circuit which steals current from the receive RS-
232 signal when that signal is in a negative state (marking). Since most serial communication ports
remain in a negative state statically, using the receive signal for negative power greatly reduces the
DS275’s static power consumption. This feature is especially important for battery-powered systems such
as laptop computers, remote sensors, and portable medical instruments. During an actual communication
session, the DS275’s transmitter will use system power (5-12 volts) for positive transitions while still
employing the receive signal for negative transitions.
1 of 8
112299

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DS275EN+ DS275S/T&R; DS275E/T&R; DS275E+ DS275E+T&R; DS275+ DS275S+ DS275S+T&R;
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