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SN74LS244DBR on a board, in 3D

SN74LS244DBR

Texas Instruments

0℃~+70℃ 15mA 18ns@5V,45pF 2 24mA 4 4.75V~5.25V 54mA 74LS Schmitt trigger Tri-State Unidirectional SSOP-20-208mil Buffers, Drivers, Receivers, Transceivers ROHS

Extended
DatasheetJLCPCBLCSCti/SN74LS244DBR
Category
Buffers, Drivers, Receivers, Transceivers
Package
SSOP-20-208mil
Pins
20

Overview

The SN74LS244DBR is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a SSOP-20-208mil package with 20 pins. 0℃~+70℃ 15mA 18ns@5V,45pF 2 24mA 4 4.75V~5.25V 54mA 74LS Schmitt trigger Tri-State Unidirectional SSOP-20-208mil Buffers, Drivers, Receivers, Transceivers ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS244, from KiCad's library) and its footprint (Package_SO:SSOP-20_5.3x7.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. 25 are in stock at JLCPCB (part C7750).

Symbol

OEa1I0a2O3b3I1a4O2b5I2a6O1b7I3a8O0b9GND10I0b11O3a12I1b13O2a14I2b15O1a16I3b17O0a18OEb19VCC20
74xx:74LS244From KiCad's library

Footprint

1234567891011121314151617181920
Package_SO:SSOP-20_5.3x7.2mm_P0.65mmFrom KiCad's library

Parameters

12
Channel Type
Unidirectional
Current - Output High(IOH)
15mA
Current - Output Low(IOL)
24mA
Input type
Schmitt trigger
Logic Family
74LS
Number of Bits per Element
4
Number of Elements
2
Operating Temperature
0℃~+70℃
Propagation Delay
18ns@5V,45pF
Quiescent Current
54mA
Voltage - Supply
4.75V~5.25V
output type
Tri-State

Order codes

1

Pinout

20
The pins of the SN74LS244DBR
PinNameType
1OEaInput
2I0aInput
3O3bTri-state
4I1aInput
5O2bTri-state
6I2aInput
7O1bTri-state
8I3aInput
9O0bTri-state
10GNDPower in
11I0bInput
12O3aTri-state
13I1bInput
14O2aTri-state
15I2bInput
16O1aTri-state
17I3bInput
18O0aTri-state
19OEbInput
20VCCPower in

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Questions

Is there a KiCad symbol and footprint for the SN74LS244DBR?

Yes. The symbol is 74xx:74LS244 and the footprint Package_SO:SSOP-20_5.3x7.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN74LS244DBR?

SSOP-20-208mil, with 20 pins. Its footprint is drawn on this page.

Where is the SN74LS244DBR datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the SN74LS244DBR?

JLCPCB lists it as part C7750, with 25 in stock; the sellers' links on this page open their listings.

What can replace the SN74LS244DBR?

Parts like it in the library: the SN74LVC245ADB by Texas Instruments, the SN74HC245DBR by Texas Instruments, the SN74ABT540DB by Texas Instruments and the SN74HCT245DB by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8