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Logic / Bus Driver/Transceivers / SN74LS244N
Datasheets
SN74LS244N by:

8-ch, 4.75-V to 5.25-V bipolar buffers with 3-state outputs 20-PDIP 0 to 70

Part Details for SN74LS244N by Texas Instruments

Results Overview of SN74LS244N by Texas Instruments

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Consumer Electronics

SN74LS244N Information

SN74LS244N by Texas Instruments is a Bus Driver/Transceiver.
Bus Driver/Transceivers are under the broader part category of Logic Components.

Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.

Price & Stock for SN74LS244N

Part # Distributor Description Stock Price Buy
DISTI # 37AJ1141
Newark Ic, Buff/Dvr Tri-St, Octal, 20Dip, Logic Device Type:Buffer, Non Inverting, Logic Family/Base Number:74Ls244, Logic Case Style:Dip, No. Of Pins:20Pins, Supply Voltage Min:4.75V, Supply Voltage Max:5.25V, Logic Ic Family:74Ls, Rohs Compliant: Yes |Texas Instruments SN74LS244N RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk 0
  • 1 $2.7400
  • 10 $2.3300
  • 100 $1.8700
  • 500 $1.7300
  • 1,000 $1.5500
  • 2,500 $1.2500
  • 5,000 $1.2200
$1.2200 / $2.7400 Buy Now
Bristol Electronics   1663
RFQ
Bristol Electronics   296
RFQ
Bristol Electronics   139
RFQ
DISTI # 74LS244
TME IC: digital, buffer,non-inverting,line driver, Ch: 8, THT, DIP20 Min Qty: 1 242
  • 1 $1.1600
  • 5 $1.0400
  • 20 $0.8900
  • 100 $0.7100
  • 200 $0.6200
$0.6200 / $1.1600 Buy Now
Ameya Holding Limited IC: digital, buffer,line driver, Channels: 8, THT, DIP20, 74LS 1000
RFQ
ComSIT USA Electronic Component RoHS: Not Compliant Stock DE - 0
Stock ES - 2073
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
DISTI # C1S746201295941
Chip1Stop Analog Switches, Multiplexers, Demultiplexers RoHS: Compliant Container: Tube 75
  • 1 $0.4900
  • 10 $0.4890
  • 50 $0.4880
$0.4880 / $0.4900 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 1307
  • 1 $1.5400
  • 100 $1.1500
  • 1,000 $1.0000
$1.0000 / $1.5400 Buy Now
Win Source Electronics IC BUFF/DVR TRI-ST DUAL 20DIP 7300
  • 45 $1.2359
  • 100 $1.0141
  • 155 $0.9824
  • 215 $0.9507
  • 275 $0.9191
  • 365 $0.8240
$0.8240 / $1.2359 Buy Now

Part Details for SN74LS244N

SN74LS244N CAD Models

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SN74LS244N Part Data Attributes

Parametric Data
SN74LS244N Texas Instruments
Buy Now Datasheet
Compare Parts:
SN74LS244N Texas Instruments 8-ch, 4.75-V to 5.25-V bipolar buffers with 3-state outputs 20-PDIP 0 to 70
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code DIP
Package Description DIP-20
Pin Count 20
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Control Type ENABLE LOW
Count Direction UNIDIRECTIONAL
Family LS
JESD-30 Code R-PDIP-T20
JESD-609 Code e4
Length 25.4 mm
Load Capacitance (CL) 45 pF
Logic IC Type BUS DRIVER
Max I(ol) 0.024 A
Number of Bits 4
Number of Functions 8
Number of Ports 2
Number of Terminals 20
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Characteristics 3-STATE
Output Polarity TRUE
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP20,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Packing Method TUBE
Power Supply Current-Max (ICC) 50 mA
Prop. Delay@Nom-Sup 18 ns
Propagation Delay (tpd) 18 ns
Qualification Status Not Qualified
Seated Height-Max 5.08 mm
Supply Voltage-Max (Vsup) 5.25 V
Supply Voltage-Min (Vsup) 4.75 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount NO
Technology TTL
Temperature Grade COMMERCIAL
Terminal Finish NICKEL PALLADIUM GOLD
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Width 7.62 mm

Alternate Parts for SN74LS244N

This table gives cross-reference parts and alternative options found for SN74LS244N. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN74LS244N, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
SN74LS244NS Motorola Semiconductor Products Check for Price Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDIP20, PLASTIC, DIP-20 SN74LS244N vs SN74LS244NS
SN74LS244NDS Motorola Mobility LLC Check for Price LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20, PLASTIC, DIP-20 SN74LS244N vs SN74LS244NDS
SN54LS244JB AMD Check for Price Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, HERMETIC SEALED, DIP-20 SN74LS244N vs SN54LS244JB
SN74LS244N-10 Texas Instruments Check for Price IC LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20, Bus Driver/Transceiver SN74LS244N vs SN74LS244N-10
SN74LS244N AMD Check for Price Bus Driver, 2-Func, 4-Bit, True Output, TTL, PDIP20, SN74LS244N vs SN74LS244N
SN74LS244NDS Motorola Semiconductor Products Check for Price Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDIP20, PLASTIC, DIP-20 SN74LS244N vs SN74LS244NDS
SN54LS244J Motorola Semiconductor Products Check for Price Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, CDIP20, CERAMIC, DIP-20 SN74LS244N vs SN54LS244J
SN54LS244J-00 Texas Instruments Check for Price LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDIP20 SN74LS244N vs SN54LS244J-00
SN54LS244J883B Monolithic Memories (RETIRED) Check for Price Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, CDIP20, SN74LS244N vs SN54LS244J883B
Part Number Manufacturer Composite Price Description Compare
SN54LS244JB Monolithic Memories (RETIRED) Check for Price Bus Driver, 2-Func, 4-Bit, True Output, TTL, CDIP20, SN74LS244N vs SN54LS244JB
74LS244PC Fairchild Semiconductor Corporation Check for Price Bus Driver, LS Series, 1-Func, 8-Bit, True Output, TTL, PDIP20, PLASTIC, DIP-20 SN74LS244N vs 74LS244PC
SN54LS244JD Motorola Mobility LLC Check for Price LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDIP20, CERAMIC, DIP-20 SN74LS244N vs SN54LS244JD
SN74LS244NSHRP Monolithic Memories (RETIRED) Check for Price Bus Driver/Transceiver, SN74LS244N vs SN74LS244NSHRP
SN74LS244N3 Texas Instruments Check for Price Octal Buffers And Line Drivers With 3-State Outputs 20-PDIP 0 to 70 SN74LS244N vs SN74LS244N3
74LS244PC Texas Instruments Check for Price LS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDIP20 SN74LS244N vs 74LS244PC
SN54LS244J Monolithic Memories (RETIRED) Check for Price Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, CDIP20, SN74LS244N vs SN54LS244J
SN74LS244N onsemi Check for Price LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20, PLASTIC, DIP-20 SN74LS244N vs SN74LS244N
SN74LS244N Monolithic Memories (RETIRED) Check for Price Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDIP20, SN74LS244N vs SN74LS244N
SN54LS244J AMD Check for Price Bus Driver, 2-Func, 4-Bit, True Output, TTL, CDIP20, DIP-20 SN74LS244N vs SN54LS244J

SN74LS244N Related Parts

SN74LS244N Frequently Asked Questions (FAQ)

  • The maximum frequency of operation for the SN74LS244N is typically around 30-40 MHz, but this can vary depending on the specific application and operating conditions.

  • To ensure reliable operation in high-temperature environments, it's essential to follow proper thermal management practices, such as providing adequate heat sinking and ensuring good airflow around the device. Additionally, consider using a thermal interface material to improve heat transfer between the device and the heat sink.

  • The recommended power-on sequence for the SN74LS244N is to apply power to the VCC pin before applying any input signals. This helps prevent unwanted output states during power-up.

  • To handle bus contention when using the SN74LS244N as a bus transceiver, use external resistors or diodes to isolate the output stages and prevent backdrive currents. Additionally, consider using a bus arbiter or other bus management circuitry to ensure proper bus access and control.

  • The maximum capacitive load that the SN74LS244N can drive is typically around 100-150 pF, but this can vary depending on the specific application and operating conditions. It's essential to consider the capacitive load when designing the system to ensure reliable operation.

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