Datasheets
SN74ALS240ADBR by: Texas Instruments

8-ch, 4.5-V to 5.5-V bipolar inverters with 3-state outputs 20-SSOP

Part Details for SN74ALS240ADBR by Texas Instruments

Results Overview of SN74ALS240ADBR by Texas Instruments

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SN74ALS240ADBR Information

SN74ALS240ADBR 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 SN74ALS240ADBR

Part # Distributor Description Stock Price Buy
DISTI # 2156-SN74ALS240ADBR-ND
DigiKey IC BUFFER INVERT 5.5V 20SSOP Min Qty: 1 Lead time: 12 Weeks Container: Bulk MARKETPLACE PRODUCT 2000
In Stock
  • 387 $0.7800
$0.7800 Buy Now
DISTI # 296-SN74ALS240ADBRCT-ND
DigiKey IC BUFFER INVERT 5.5V 20SSOP Min Qty: 1 Lead time: 12 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) 831
In Stock
  • 1 $1.5200
  • 10 $1.1080
  • 25 $1.0052
  • 100 $0.8928
  • 250 $0.8391
  • 500 $0.8068
  • 1,000 $0.7801
  • 2,000 $0.7582
  • 4,000 $0.7402
  • 6,000 $0.7311
  • 10,000 $0.7211
$0.7211 / $1.5200 Buy Now
DISTI # 595-SN74ALS240ADBR
Mouser Electronics Buffers & Line Drivers 3-State Outputs 20-S SOP RoHS: Compliant 0
  • 1 $1.5200
  • 10 $1.0100
  • 100 $0.8930
  • 250 $0.8400
  • 500 $0.8070
  • 1,000 $0.7810
  • 2,000 $0.7580
  • 4,000 $0.7430
$0.7430 / $1.5200 Order Now
DISTI # 86036535
Verical Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin SSOP T/R RoHS: Compliant Min Qty: 372 Package Multiple: 1 Date Code: 1001 Americas - 2000
  • 372 $1.0101
  • 500 $0.9671
  • 1,000 $0.9134
$0.9134 / $1.0101 Buy Now
Rochester Electronics SN74ALS240A Octal Buffers/Drivers With 3-State Outputs RoHS: Compliant Status: Active Min Qty: 1 2000
  • 1 $0.8597
  • 25 $0.8425
  • 100 $0.8081
  • 500 $0.7737
  • 1,000 $0.7307
$0.7307 / $0.8597 Buy Now

Part Details for SN74ALS240ADBR

SN74ALS240ADBR CAD Models

SN74ALS240ADBR Part Data Attributes

SN74ALS240ADBR Texas Instruments
Buy Now Datasheet
Compare Parts:
SN74ALS240ADBR Texas Instruments 8-ch, 4.5-V to 5.5-V bipolar inverters with 3-state outputs 20-SSOP
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Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SSOP
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 ALS
JESD-30 Code R-PDSO-G20
JESD-609 Code e4
Length 7.2 mm
Load Capacitance (CL) 50 pF
Logic IC Type BUS DRIVER
Max I(ol) 0.024 A
Moisture Sensitivity Level 1
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 INVERTED
Package Body Material PLASTIC/EPOXY
Package Code SSOP
Package Equivalence Code SSOP20,.3
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, SHRINK PITCH
Packing Method TR
Peak Reflow Temperature (Cel) 260
Power Supply Current-Max (ICC) 25 mA
Prop. Delay@Nom-Sup 9 ns
Propagation Delay (tpd) 9 ns
Qualification Status Not Qualified
Seated Height-Max 2 mm
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 4.5 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount YES
Technology TTL
Temperature Grade COMMERCIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 0.65 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 5.3 mm

Alternate Parts for SN74ALS240ADBR

This table gives cross-reference parts and alternative options found for SN74ALS240ADBR. 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 SN74ALS240ADBR, 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
SN74ALS240A-1DBR Texas Instruments Check for Price ALS SERIES, DUAL 4-BIT DRIVER, INVERTED OUTPUT, PDSO20, GREEN, PLASTIC, SSOP-20 SN74ALS240ADBR vs SN74ALS240A-1DBR

SN74ALS240ADBR Related Parts

SN74ALS240ADBR Frequently Asked Questions (FAQ)

  • The recommended operating voltage range for the SN74ALS240ADBR is 4.5V to 5.5V, although it can operate as low as 4.2V with reduced performance.

  • The output enable (OE) pin should be tied low to enable the outputs, and tied high to disable the outputs. Leaving the OE pin floating can cause unpredictable behavior.

  • The maximum frequency of operation for the SN74ALS240ADBR is typically around 100 MHz, although this can vary depending on the specific application and operating conditions.

  • To ensure signal integrity, use proper PCB layout techniques, such as using short signal traces, minimizing impedance mismatches, and using termination resistors as needed. Additionally, consider using a signal integrity analysis tool to simulate and optimize the design.

  • The SN74ALS240ADBR is a 5V device, but it can be used with 3.3V logic as long as the input voltage is within the recommended operating range (4.2V to 5.5V). However, the output voltage will still be 5V, so level shifting may be required to interface with 3.3V devices.