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74LS245: Transistor, Pinout, Datasheet

IC TXRX NON-INVERT 5.25V 20DIP The 74LS245 uses Schottky transistor logic to perform the standard '245 transceiver function. The article is going to show the introduction of the device.

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Mar 2, 2022

Mag Caroline

SN74LS245N

 

IC TXRX NON-INVERT 5.25V 20DIP

The 74LS245 uses Schottky transistor logic to perform the standard '245 transceiver function. The article is going to show the introduction of the device.

SN74LS245N

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74LS245 Description

To fulfill the standard '245 transceiver function, the 74LS245 employs Schottky transistor logic. This common logic function features a shared pinout, a direction choose pin, and an active-low output enable. When the outputs are turned off, the device's A and B sides are effectively isolated.

74LS245 Pinout

74LS245 CAD Model

Symbol

Footprint

3D Model

74LS245 Features

• 3-State Outputs Drive Bus Lines Directly

• PNP Inputs Reduce DC Loading on Bus Lines

• Hysteresis at Bus Inputs Improves Noise Margins

• Typical Propagation Delay Times Port to Port, 8 ns

74LS245 Functional Block Diagram

74LS245 Recommended Operating Conditions

  MIN NOM MAX UNIT
VCC Supply voltage SN54LS245 4.5 5 5.5 V
SN74LS245 4.75 5 5.25
  High-level output current SN54LS245 -12 mA
IOH SN74LS245 -15
  Low-level output current SN54LS245 12 mA
IOL SN74LS245 24
Ta Operating free-air temperature SN54LS245 -55   125 °C
SN74LS245 0   70

74LS245 Equivalents

Part Number Description Manufacturer
SN74LS245JSLOGIC Bus Transceiver, LS Series, 1-Func, 8-Bit, True Output, TTL, CDIP20, CERAMIC, DIP-20 Motorola Semiconductor Products
DM54LS245E/883LOGIC Bus Driver/Transceiver, 1-Func, 8-Bit, True Output, TTL, CDIP20, Fairchild Semiconductor Corporation
SN74LS245J4LOGIC IC,BUS TRANSCEIVER,SINGLE,8-BIT,LS-TTL,DIP,20PIN,CERAMIC Texas Instruments
JM38510/32803BRALOGIC Bus Transceiver, LS Series, 1-Func, 8-Bit, True Output, TTL, CDIP20, BAE Systems
DM74LS245JLOGIC IC,BUS TRANSCEIVER,SINGLE,8-BIT,LS-TTL,DIP,20PIN,CERAMIC Texas Instruments
SN54LS245JDLOGIC LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20, CERAMIC, DIP-20 Motorola Mobility LLC
SN74LS245DWLOGIC LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, SOIC-20 Motorola Mobility LLC
JM38510/32803B2ALOGIC Octal Bus Transceivers With 3-State Outputs 20-LCCC -55 to 125 Texas Instruments
54LS245/B2AJCLOGIC LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20, CERAMIC, LCC-20 Motorola Mobility LLC
SN74LS245DWG4LOGIC Octal bus transceivers 20-SOIC 0 to 70 Texas Instruments

Specifications

SN74LS245N Tech Specifications

Texas Instruments SN74LS245N technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments SN74LS245N.

Product Attribute Attribute Value
Lifecycle StatusACTIVE (Last Updated: 6 hours ago)
Factory Lead Time8 Weeks
Contact PlatingGold
MountThrough Hole
Mounting TypeThrough Hole
Package / Case20-DIP (0.300, 7.62mm)
Number of Pins20Pins
Weight1.1991g
Number of Elements1 Element
Operating Temperature0°C~70°C TA
PackagingTube
Series74LS
JESD-609 Codee4
Pbfree Codeyes
Part StatusActive
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations20Terminations
TerminationThrough Hole
ECCN CodeEAR99
Product Attribute Attribute Value
Additional FeatureWITH DIRECTION CONTROL
Voltage - Supply4.75V~5.25V
Terminal PositionDUAL
Number of Functions1Function
Supply Voltage5V
Terminal Pitch2.54mm
Base Part Number74LS245
Pin Count20
Output Type3-State
Operating Supply Voltage5V
PolarityNon-Inverting
Power Supplies5V
Number of Channels8Channels
Load Capacitance45pF
Number of Ports2Ports
Number of Bits8Bits
Propagation Delay12 ns
Quiescent Current62mA
Turn On Delay Time12 ns
Product Attribute Attribute Value
FamilyLS
Logic FunctionInverting, Transceiver
DirectionBidirectional
Logic TypeTransceiver, Non-Inverting
Max I(ol)0.024 A
Control TypeCOMMON CONTROL
Schmitt TriggerNo
Power Supply Current-Max (ICC)0.09mA
TranslationN/A
Height5.08mm
Length24.33mm
Width6.35mm
Thickness4.57mm
REACH SVHCNo SVHC
Radiation HardeningNo
RoHS StatusROHS3 Compliant
Lead FreeLead Free
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74LS245 Applications

• Building Automation

• Electronic Point of Sale

• Factory Automation and Control

• Test and Measurement

74LS245 Typical Application Circuit

74LS245 Package

74LS245 Manufacturer

Texas Instruments Incorporated (TI) is an American technology company based in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, micro-controllers, and multi-core processors. The company boasts 45,000 patents around the globe as of 2016.

Datasheet PDF

SN74LS245N Documents

Download datasheets and manufacturer documentation for SN74LS245N

Frequently Asked Questions

What is 74LS245?
To fulfill the standard '245 transceiver function, the 74LS245 employs Schottky transistor logic. This common logic function features a shared pinout, a direction choose pin, and an active-low output enable. When the outputs are turned off, the device's A and B sides are effectively isolated.
What is the recommended operating temperature of the component?
0°C~70°C TA.
What is the package of the device?
20-DIP (0.300, 7.62mm).
What is the component’s number of pins?
20.
FAQ
What is 74LS245?
To fulfill the standard '245 transceiver function, the 74LS245 employs Schottky transistor logic. This common logic function features a shared pinout, a direction choose pin, and an active-low output enable. When the outputs are turned off, the device's A and B sides are effectively isolated.
What is the recommended operating temperature of the component?
0°C~70°C TA.
What is the package of the device?
20-DIP (0.300, 7.62mm).
What is the component’s number of pins?
20.

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