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LTC1323, LTC1323CG, LTC1323CS

Table of contents:
Info of LTC1323
Info of LTC1323CG
Info of LTC1323CS

LTC1323, LTC1323CG, LTC1323CS Selling Leads, Datasheet

MFG:LT Package Cooled:SOP D/C:09+

LTC1323, LTC1323CG, LTC1323CS Datasheet download

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Part Number: LTC1323

MFG: LT

Package Cooled: SOP

D/C: 09+

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LTC1323 General Description

The LTC®1323 is a multi-protocol line transceiver designed to operate on AppleTalk or EIA562-compatible singleended networks while operating from a single 5V supply.

There are two versions of the LTC1323 available: a 16-pin version designed to connect to an AppleTalk network, and a 24-pin version which also includes the additional single-ended drivers and receivers necessary to create an Apple-compatible serial port. An on-board charge pump generates a 5V supply which can be used to power external devices. Additionally, the 24-pin LTC1323 features a micropower keep-alive mode during which one of the single-ended receivers is kept active to monitor external wake-up signals. The LTC1323 draws only 2.4mA quiescent current when active, 65mA in receiver keepalive mode, and 0.5mA in shutdown, making it ideal for use in battery-powered systems.

The differential driver can drive either differential AppleTalk loads or conventional single-ended loads. The driver outputs three-state when disabled, during shutdown, in receiver keep-alive mode, or when the power is off. The driver outputs will maintain high impedance even with output common-mode voltages beyond the power supply rails. Both the driver outputs and receiver inputs are protected against ESD damage to ±10kV.

LTC1323 Maximum Ratings

Supply Voltage (V_CC) ............................................ 7V
Input Voltage
Logic Inputs .............................. 0.3V to V_CC + 0.3V
Receiver Inputs ................................................ ±15V
Driver Output Voltage (Forced) ........................ ±15V
Driver Short-Circuit Duration .......................Indefinite
Operating Temperature Range ........... 0°C to 70°C
Storage Temperature Range ....... 65°C to 150°C
Lead Temperature (Soldering, 10 sec).......... 300°C

LTC1323 Features

·Single Chip Provides Complete LocalTalk®/AppleTalk Port
·Operates From a Single 5V Supply
·ESD Protection to ±10kV on Receiver Inputs and Driver Outputs
·Low Power: I_CC = 2.4mA Typ
·Shutdown Pin Reduces I_CC to 0.5mA Typ
·Receiver Keep-Alive Function: I_CC = 65mA Typ
·Differential Driver Drives Either Differential AppleTalk or Single-Ended EIA562 Loads
·Drivers Maintain High Impedance in Three-State or with Power Off
·Thermal Shutdown Protection
·Drivers are Short-Circuit Protected

LTC1323 Typical Application

·LocalTalk Peripherals
·Notebook/Palmtop Computers
·Battery-Powered Systems

LTC1323 Connection Diagram

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