Datasheet Linear Technology LT1237

Manufacturer	Linear Technology
Series	LT1237

5V RS232 Transceiver with Advanced Power Management and One Receiver Active in Shutdown

Datasheets

PDF, 189 Kb, Revision: A, File uploaded: Nov 12, 2017

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Prices

Packaging

	LT1237CG#PBF	LT1237CG#TRPBF	LT1237CNW#PBF	LT1237CSW#PBF	LT1237CSW#TRPBF
N	1	2	3	4	5
Package	SSOP-28 Package Outline Drawing	SSOP-28 Package Outline Drawing	NW-28 Package Outline Drawing	SW-28 Package Outline Drawing	SW-28 Package Outline Drawing
Package Code	G	G	NW	SW	SW
Package Index	05-08-1640 (G28)	05-08-1640 (G28)	05-08-1520	05-08-1620 (SW28)	05-08-1620 (SW28)
Pin Count	28	28	28	28	28

Parametrics

Parameters / Models	LT1237CG#PBF	LT1237CG#TRPBF	LT1237CNW#PBF	LT1237CSW#PBF	LT1237CSW#TRPBF
Driver Disable	yes	yes	yes	yes	yes
Drivers	3	3	3	3	3
ESD, kV	15	15	15	15	15
Export Control	no	no	no	no	no
IEC61000-4-2 Support	yes	yes	yes	yes	yes
Max Data Rate, Mbps	0.25	0.25	0.25	0.25	0.25
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70
Power, mW	30	30	30	30	30
Protocols Supported	RS232	RS232	RS232	RS232	RS232
Rec Alive in SD	1	1	1	1	1
Receivers	5	5	5	5	5
Shutdown	yes	yes	yes	yes	yes
Supply Voltage Range	5V	5V	5V	5V	5V
Voltage Gen Components	1 x 1.0ВµF, 5 x 0.1ВµF	1 x 1.0ВµF, 5 x 0.1ВµF	1 x 1.0ВµF, 5 x 0.1ВµF	1 x 1.0ВµF, 5 x 0.1ВµF	1 x 1.0ВµF, 5 x 0.1ВµF

Eco Plan

	LT1237CG#PBF	LT1237CG#TRPBF	LT1237CNW#PBF	LT1237CSW#PBF	LT1237CSW#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant

Design Notes

Download
RS232 Transceivers for Hand Held Computers Withstand 10kV ESD &mdash DN64
PDF, 81 Kb, File published: Nov 1, 1992
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RS232 Transceivers for Hand Held Computers
Withstand 10kV ESD -Design Note 64
Sean Gold
Battery-powered computers and instrumentation are
often subjected to severe electrical stress which imposes
some stringent demands on serial communication interfaces. As always, operating from a battery mandates
minimal power consumption. Transceivers must also
tolerate repetitive electrostatic discharge (ESD) pulses
because cable connections frequently come in contact
with humans and other charged bodies.
В® Linear TechnologyвЂ™s LT 1237 addresses the above
requirements. The LT1237 is a complete RS232 port,
with three drivers, п¬Ѓve receivers and a regulated charge
pump. Supply current is typically 6mA, but the device can
be shut down with two separate logic controls. The driver
disable pin shuts off the charge pump and the drivers вЂ“
leaving all receivers active, ISUPPLY = 4mA. The ON/OFF
pin shuts down all circuitry except for one micropower
receiver, ISUPPLY = 60ОјA. The active receiver is useful
for detecting start-up signals. The LT1237 operates up
to 120kBaud and is fully compliant with all RS232 speciп¬Ѓcations. Connections to the RS232 cable are protected
with internal ESD structures that can withstand repetitive
В±10kV human body model ESD pulses. …

Model Line

Series: LT1237 (5)

LT1237CG#PBF LT1237CG#TRPBF LT1237CNW#PBF LT1237CSW#PBF LT1237CSW#TRPBF

Manufacturer's Classification

Interface > RS232/RS562 Transceivers

EMS supplier

Slices

Microcontrollers