SN74LS245N

Number of Channels per Chip : 8
Output Type : 3-State
Supply Voltage - Max : 5.25 V
Supply Voltage - Min : 4.75 V
Maximum Operating Temperature : + 70 C
Packaging : Tube
Logic Type : Standard Transceiver
Low Level Output Current : 24 mA
Input Level : TTL
Output Level : TTL
High Level Output Current : - 15 mA
Package / Case : PDIP-20
Logic Family : LS
Propagation Delay Time : 12 ns


Description

The SN74LS245N is designed as an octal bus transmitter/receiver for 8-line asynchronous 2-way data communication between data buses. Direction input (DR) controls transmission of data from bus A to bus B or bus B to bus A depending upon its logic level. The Enable input (E) can be used to isolate the buses.

SN74LS245N has four features. (1)Hysteresis inputs to improve noise immunity. (2)2-way asynchronous data bus communication. (3)Input diodes limit high-speed termination effects. (4)ESD is larger than 3500 volts. Those are all the main features.

Some guaranteed operating ranges SN74LS245N have been concluded into several points as follow. (1)Its supply voltage would be min 4.75V and typ 5.0V and max 5.25V. (2)Its operating ambient temperature range would be min 0°C and typ 25°C and max 70°C. (3)Its output current high level would be -3.0mA. (4)Its output current low level woud be max 24mA. Those are all the main operating specifications.

Also some electrical characteristics SN74LS245N are concluded as follow. (1)Its input high voltage would be min 2.0V. (2)Its input low voltage would be max 0.8V. (3)Its hysteresis would be min 0.2V and typ 0.4V. (4)Its input clamp diode voltage would be typ -0.65V and max -1.5V. (5)Its output high voltage would be min 2.4V and typ 3.4V at Ioh=-3.0mA and would be min 2.0V at Ioh=max. (6)Its output low voltage would be typ 0.25V and max 0.4V at Iol=12mA and it would be typ 0.35V and max 0.5V at Iol=24mA. (7)Its output off current high would be max 20uA. (8)Its output off current low would be max -200uA. (9)Its input high current would be max 0.1mA and it would be max 20uA for A or B, DR or E. (10)Its input low current would be max -0.2mA. (11)Its output short circuit current would be min -40mA and max -225mA. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!

Parameters:

Technical/Catalog Information	SN74LS245N
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Logic Type	Transceiver, Non-Inverting
Package / Case	20-DIP (300 mil)
Packaging	Tube
Mounting Type	Through Hole
Number of Bits per Element	8
Number of Elements	1 - Single
Operating Temperature	0°C ~ 70°C
Voltage - Supply	4.75 V ~ 5.25 V
Current - Output High, Low	15mA, 24mA
Drawing Number	296; 4040049; N; 14, 16, 18, 20
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	SN74LS245N SN74LS245N 296 1655 5 ND 29616555ND 296-1655-5