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LT1342

Features: ·ESD Protection Over ±10kV·3V Logic Interface·Uses Small Capacitors: 0.1mF, 0.2mF·1mA Supply Current in SHUTDOWN·Low Power Driver Disable Operating Mode·Pin Compatible with LT1137A·120kBaud Operation for RL = 3k, CL = 2500pF·250kBaud Operation for RL = 3k, CL = 1000pF·CMOS Comparable Low...

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SeekIC No. : 004400534 Detail

LT1342: Features: ·ESD Protection Over ±10kV·3V Logic Interface·Uses Small Capacitors: 0.1mF, 0.2mF·1mA Supply Current in SHUTDOWN·Low Power Driver Disable Operating Mode·Pin Compatible with LT1137A·120kBau...

LT1342 Data Sheet

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Part Number:
LT1342
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·ESD Protection Over ±10kV
·3V Logic Interface
·Uses Small Capacitors: 0.1mF, 0.2mF
·1mA Supply Current in SHUTDOWN
·Low Power Driver Disable Operating Mode
·Pin Compatible with LT1137A
·120kBaud Operation for RL = 3k, CL = 2500pF
·250kBaud Operation for RL = 3k, CL = 1000pF
·CMOS Comparable Low Power: 60mW
·Operates from a 5V Supply and 3V Logic Supply
·Easy PC Layout: Flowthrough Architecture
·Rugged Bipolar Design
·Outputs Assume a High Impedance State When Off or Powered Down
·Absolutely No Latch-Up


Application

·Notebook Computers
·Palmtop Computers


Pinout

Connection Diagram


Specifications

Supply Voltage (VCC) ............................................. 6V
Supply Voltage (VL) ................................................ 6V
V+ ..................................................................... 13.2V
V ................................................................. 13.2V
Input Voltage
Driver ........................................................... V to V+
Receiver ................................................ 30V to 30V
Output Voltage
Driver .................................................... 30V to 30V
Receiver .................................... 0.3V to VCC + 0.3V
Short Circuit Duration
V+ ...................................................................  30 sec
V ................................................................... 30 sec
Driver Output .............................................. Indefinite
Receiver Output .......................................... Indefinite
Operating Temperature Range
LT1342C ............................................... 0°C to 70°C
Storage Temperature Range ......... 65°C to 150°C
Lead Temperature (Soldering, 10 sec)............  300°C


Description

The LT1342 is an advanced low power three-driver, fivereceiver RS232 transceiver. The LT1342 operates from a 5V supply and a 3V logic supply. Receiver outputs can interface directly to 3V logic circuits. Included on the chip is a shutdown pin for reducing supply current to near zero.

All receivers and drivers assume high impedance states during SHUTDOWN.

The DRIVER DISABLE function provides additional control of operating mode. When DRIVER DISABLE is high the charge pump and drivers turn off. Receivers continue to operate during DRIVER DISABLE.

New ESD structures on the chip allow the LT1342 to survive multiple ±10kV strikes, eliminating the need for costly TransZorbs® on the RS232 line pins. The LT1342 is fully compliant with all EIA RS232 specifications
and operates in excess of 120k baud even driving heavy capacitive loads.




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