| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| SN74LS244DBR | Rochester Electronics LLC | Check for Price | LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SSOP-20 | SN74LS244DBR vs SN74LS244DBR |
| SN74LS244DBRG4 | Texas Instruments | Check for Price | Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDSO20 | SN74LS244DBR vs SN74LS244DBRG4 |
Part Details for SN74LS244DBR by Texas Instruments
Results Overview of SN74LS244DBR by Texas Instruments
- Distributor Offerings: (7 listings)
- Number of FFF Equivalents: (2 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (2 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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
SN74LS244DBR Information
SN74LS244DBR 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 SN74LS244DBR
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
|
DISTI #
296-26509-1-ND
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DigiKey | IC BUFF 4.75V/5.25V 20-SSOP Min Qty: 1 Container: Cut Tape |
2178 Cut Tape |
|
$1.0174 / $1.8300 | Buy Now |
|
DISTI #
296-26509-2-ND
|
DigiKey | IC BUFF 4.75V/5.25V 20-SSOP Min Qty: 2000 Container: Tape & Reel |
2178 Tape & Reel |
|
$0.8880 / $0.9319 | Buy Now |
|
DISTI #
296-26509-6-ND
|
DigiKey | IC BUFF 4.75V/5.25V 20-SSOP Min Qty: 1 Container: Digi-Reel |
2178 Digi-Reel® |
|
$1.0174 / $1.8300 | Buy Now |
|
DISTI #
595-SN74LS244DBR
|
Mouser Electronics | Buffers & Line Drivers Octal Buff/Line Drvr W/3-State Otpt RoHS: Compliant | 3148 |
|
$0.9100 / $1.8300 | Buy Now |
|
|
Quest Components | BUS DRIVER, LS SERIES, 2-FUNC, 4-BIT, TRUE OUTPUT, TTL, PDSO20 | 32 |
|
$7.2400 / $10.8600 | Buy Now |
|
DISTI #
SN74LS244DBR
|
TME | IC: digital, buffer, SSOP20, 0÷85°C, reel,tape Min Qty: 1 | 0 |
|
$0.8100 / $1.1500 | RFQ |
|
|
Chip Stock | 4 24mA 4.75V~5.25V 15mA 2 SSOP-20 Buffer/Driver/Transceiver ROHS | 16495 |
|
RFQ |
US Tariff Estimator: SN74LS244DBR by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
SN74LS244DBR CAD Models
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SN74LS244DBR Part Data Attributes
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SN74LS244DBR
Texas Instruments
Buy Now
Datasheet
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SN74LS244DBR
Texas Instruments
Bus Driver, LS Series, 8-Func, 4-Bit, True Output, TTL, PDSO20
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Part Package Code | SSOP | |
| Pin Count | 20 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.90 | |
| Control Type | Enable Low | |
| Count Direction | Unidirectional | |
| Family | Ls | |
| JESD-30 Code | R-PDSO-G20 | |
| JESD-609 Code | e4 | |
| Length | 7.2 Mm | |
| Load Capacitance (CL) | 45 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 | True | |
| 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, 13 Inch | |
| Peak Reflow Temperature (Cel) | 260 | |
| 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 | 2 Mm | |
| Supply Voltage-Max (Vsup) | 5.25 V | |
| Supply Voltage-Min (Vsup) | 4.75 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 SN74LS244DBR
This table gives cross-reference parts and alternative options found for SN74LS244DBR. 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 SN74LS244DBR, 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.
SN74LS244DBR Frequently Asked Questions (FAQ)
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The maximum frequency of operation for the SN74LS244DBR is typically around 30-40 MHz, but it can vary depending on the specific application and operating conditions.
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To ensure signal integrity, use proper PCB design techniques such as using short signal traces, minimizing impedance mismatches, and using termination resistors as needed. Additionally, ensure that the power supply is clean and well-regulated.
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Yes, the SN74LS244DBR can be used in a 3.3V system, but it is recommended to use a voltage regulator to ensure a stable 5V supply to the device. Additionally, ensure that the input signals are compatible with the 5V logic levels.
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To handle thermal issues, ensure good airflow around the device, use a heat sink if necessary, and avoid operating the device at maximum power dissipation for extended periods. Also, ensure that the PCB is designed to dissipate heat efficiently.
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The SN74LS244DBR is a commercial-grade device and may not be suitable for high-reliability or high-temperature applications. For such applications, consider using industrial-grade or military-grade devices that are specifically designed for high-reliability and high-temperature operation.