LT1237是5V RS232 Transceiver with Advanced Power Management and One Receiver Active in Shutdown

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LT1237 - LT1237是5V RS232 Transceiver with Advanced Power Management and One Receiver Active in Shutdown

LT1237是Linear公司的一款RS232 / RS562 收发器产品，LT1237是5V RS232 Transceiver with Advanced Power Management and One Receiver Active in Shutdown，本站介绍了LT1237的封装应用图解、特点和优点、功能等，并给出了与LT1237相关的凌力尔特元器件型号供参考。

LT1237 - 5V RS232 Transceiver with Advanced Power Management and One Receiver Active in Shutdown

LT1237 - 5V RS232 Transceiver with Advanced Power Management and One Receiver Active in Shutdown - Linear Technology（凌力尔特）

功能描述

The LT®1237 is an advanced low power three driver, five receiver RS232 transceiver. Included on the chip is a shutdown pin for reducing supply current near zero. During shutdown one receiver remains active to detect incoming RS232 signals, for example, to wake up a system.The LT1237 is fully compliant with all EIA RS232 specifications. New ESD structures on the chip allow the LT1237 to survive multiple ±15kV strikes, eliminating the need for costly TransZorbs® on the RS232 line pins.The LT1237 operates in excess of 120kbaud even driving heavy capacitive loads. Two shutdown modes allow the driver outputs to be shut down separately from the receivers for more versatile control of the RS232 interface. During shutdown, drivers and receivers assume a high impedance state.

特点

One Receiver Remains Active While in Shutdown

ESD Protection over ±15kV

Uses Small Capacitors: 0.1µF, 0.2µF, 1.0µF

60µA Supply Current in Shutdown

Pin-Compatible with LT1137A

120kBaud Operation for RL = 3k, CL = 2500pF

250kBaud Operation for RL = 3k, CL = 1000pF

Operates to 120kBaud

CMOS Comparable Low Power 30mW

Operates from a Single 5V Supply

Easy PC Layout ? Flowthrough Architecture

Rugged Bipolar Design

Outputs Assume a High Impedance State When Off or Powered Down

Absolutely No Latchup

Available in SO and SSOP Packages

应用

Notebook Computers

Palmtop Computers

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LT1237CG	SSOP-28	C	$5.42	$4.20
LT1237CG#PBF	SSOP-28	C	$5.42	$4.20
LT1237CG#TR	SSOP-28	C		$4.30
LT1237CG#TRPBF	SSOP-28	C		$4.30
LT1237CNW	NW-28	C	$4.92	$3.90
LT1237CNW#PBF	NW-28	C	$4.92	$3.90
LT1237CSW	SW-28	C	$4.92	$3.90
LT1237CSW#PBF	SW-28	C	$4.92	$3.90
LT1237CSW#TR	SW-28	C		$4.00
LT1237CSW#TRPBF	SW-28	C		$4.00