LTC1344IG#PBF Linear Technology, LTC1344IG#PBF Datasheet
LTC1344IG#PBF
Specifications of LTC1344IG#PBF
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LTC1344IG#PBF Summary of contents
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... LTC1343, the LTC1344 forms a complete software-select- able multiprotocol serial port. A data bus latch feature allows sharing of the select lines between multiple inter- face ports. The LTC1344 is available in a 24-lead SSOP. , LTC and LT are registered trademarks of Linear Technology Corporation. RTS RL TM RXD ...
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LTC1344 ABSOLUTE MAXIMUM (Note 1) Positive Supply Voltage (V ) ................................... 7V CC Negative Supply Voltage (V ) ........................... – 13.2V EE Input Voltage (Logic Inputs) .... V EE Input Voltage (Load Inputs) .................................. 18V Operating Temperature ...
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W U TYPICAL PERFORMANCE CHARACTERISTICS V.11 or V.35 Differential Mode Impedance vs Temperature 120 V = –7V CM 115 V = –2V 110 105 100 –40 – ...
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LTC1344 PIN FUNCTIONS M0 (Pin 1): TTL Level Mode Select Input. The data latched when LATCH is high. V (Pin 2): Negative Supply Voltage Input. Can connect EE directly to the LTC1343 V pin. ...
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W U ODE SELECTIO LTC1344 MODE NAME DCE/DTE V.10/RS423 X RS530A 0 1 Reserved RS530/RS449/V. V.28/RS232 X No Cable don’t care logic low ...
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LTC1344 U U APPLICATIONS INFORMATION Multiprotocol Cable Termination One of the most difficult problems facing the designer of a multiprotocol serial interface is how to allow the trans- mitters and receivers for different electrical standards to share connector pins. In ...
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U U APPLICATIONS INFORMATION BALANCED INTERCONNECTING GENERATOR CABLE TERMINATION ' Figure 6. Typical V.11 Interface A LTC1344 51 OFF 124 51 –10V –3V Z – ...
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... Z –0.8mA Figure 11. V.35 Receiver Using the LTC1344 low side. However, all of Linear Technology’s V.35 receiv- ers meet the RS485 input impedance specification as shown in Figure 11, which insures compliance with the V.35 specification when used with the LTC1344. The generator differential impedance must be 50 ...
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U TYPICAL APPLICATIONS Figure 13 shows a typical application for the LTC1344 using the LTC1343 mixed mode transceiver chip to gener- ate the clock and data signals for a serial interface. The LTC1344 V supply is generated from the LTC1343 ...
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LTC1344 U TYPICAL APPLICATIONS Controller Selectable Multiprotocol DTE Port with DB-25 Connector DTE_LL/DCE_TM 6 DTE_TXD/DCE_RXD 7 DTE_SCT/DEC_RXC DTE_TXC/DCE_TXC ...
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... SET R2 100k 40 GND Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights 100pF 100pF 100pF ...
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... Dr/3 Rx for Data and CLK Signals 3 Dr/3 Rx for Data and CLK Signals Allows Separate RS449 Mode 3 Dr/3 Rx for Data and CLK Signals 4 Dr/4 Rx for Control Signals and LL 5 Dr/5 Rx for Control Signals, LL, RL amd TM 1344fa LT/TP 0300 2K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1996 ...