| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| CD74HC243M | Texas Instruments | $0.3699 | Bus Transceiver, HC/UH Series, 4-Func, 4-Bit, True Output, CMOS, PDSO14 | SN74LS243DR vs CD74HC243M |
| 74HC243D-T | Philips Semiconductors | Check for Price | Bus Driver/Transceiver, 1-Func, 4-Bit, True Output, CMOS, PDSO14 | SN74LS243DR vs 74HC243D-T |
| SN74HC243D-00 | Texas Instruments | Check for Price | Bus Transceiver, HC/UH Series, 1-Func, 4-Bit, True Output, CMOS, PDSO14 | SN74LS243DR vs SN74HC243D-00 |
| 74HC243D-T | NXP Semiconductors | Check for Price | Bus Transceiver, HC/UH Series, 1-Func, 4-Bit, True Output, CMOS, PDSO14 | SN74LS243DR vs 74HC243D-T |
| CD74HC243M96 | Intersil Corporation | Check for Price | Bus Transceiver, 1-Func, 4-Bit, True Output, CMOS, PDSO14 | SN74LS243DR vs CD74HC243M96 |
| MN74HC243S | Panasonic Electronic Components | Check for Price | Bus Driver, HC/UH Series, 1-Func, 4-Bit, True Output, CMOS, PDSO14 | SN74LS243DR vs MN74HC243S |
| DM74LS243M | Rochester Electronics LLC | Check for Price | Bus Transceiver, LS Series, 1-Func, 4-Bit, True Output, TTL, PDSO14 | SN74LS243DR vs DM74LS243M |
| SN74LS243DE4 | Texas Instruments | Check for Price | Bus Transceiver, LS Series, 4-Func, 4-Bit, True Output, TTL, PDSO14 | SN74LS243DR vs SN74LS243DE4 |
| MM74HC243M | Texas Instruments | Check for Price | Bus Transceiver, HC/UH Series, 1-Func, 4-Bit, True Output, CMOS, PDSO14 | SN74LS243DR vs MM74HC243M |
| CD74HC243MG4 | Texas Instruments | Check for Price | Bus Transceiver, HC/UH Series, 1-Func, 4-Bit, True Output, CMOS, PDSO14 | SN74LS243DR vs CD74HC243MG4 |
Part Details for SN74LS243DR by Texas Instruments
Results Overview of SN74LS243DR by Texas Instruments
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (10 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 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
Education and Research
Financial Technology (Fintech)
Healthcare
SN74LS243DR Information
SN74LS243DR 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 SN74LS243DR
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
296-3675-2-ND
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DigiKey | IC TXRX 4.75V/5.25V 14-SOIC Min Qty: 2500 Container: Tape & Reel |
0 Tape & Reel |
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$2.6611 | Buy Now |
|
DISTI #
595-SN74LS243DR
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Mouser Electronics | Bus Transceivers Quad bus transceiver A 595-SN74LS243D A A 595-SN74LS243D RoHS: Compliant | 1895 |
|
$2.4200 / $3.4100 | Buy Now |
US Tariff Estimator: SN74LS243DR 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.
SN74LS243DR CAD Models
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SN74LS243DR Part Data Attributes
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SN74LS243DR
Texas Instruments
Buy Now
Datasheet
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SN74LS243DR
Texas Instruments
Bus Transceiver, LS Series, 4-Func, 4-Bit, True Output, TTL, PDSO14
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Part Package Code | SOIC | |
| Pin Count | 14 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.90 | |
| Additional Feature | With Independent Output Enable For Each Direction | |
| Control Type | Independent Control | |
| Count Direction | Bidirectional | |
| Family | Ls | |
| JESD-30 Code | R-PDSO-G14 | |
| JESD-609 Code | e4 | |
| Length | 8.65 Mm | |
| Load Capacitance (CL) | 50 Pf | |
| Logic IC Type | Bus Transceiver | |
| Max I(ol) | 0.024 A | |
| Moisture Sensitivity Level | 1 | |
| Number of Bits | 4 | |
| Number of Functions | 4 | |
| Number of Ports | 2 | |
| Number of Terminals | 14 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Characteristics | 3-State | |
| Output Polarity | True | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | SOP | |
| Package Equivalence Code | SOP14,.25 | |
| Package Shape | Rectangular | |
| Package Style | Small Outline | |
| Packing Method | Tr | |
| 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 | |
| Schmitt Trigger | No | |
| Seated Height-Max | 1.75 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 | 1.27 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 3.9 Mm |
Alternate Parts for SN74LS243DR
This table gives cross-reference parts and alternative options found for SN74LS243DR. 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 SN74LS243DR, 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.
SN74LS243DR Frequently Asked Questions (FAQ)
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The maximum operating frequency of the SN74LS243DR is 30 MHz, but it can vary depending on the load capacitance and the output current.
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No, the SN74LS243DR is a 5V device and is not recommended for use in 3.3V systems. Using it in a 3.3V system may result in reduced performance, incorrect operation, or even damage to the device.
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Unused inputs of the SN74LS243DR should be tied to a valid logic level (either VCC or GND) to prevent them from floating and causing unwanted oscillations or power consumption.
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The maximum power dissipation of the SN74LS243DR is 500 mW, but it can vary depending on the operating frequency, output current, and ambient temperature.
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The SN74LS243DR is rated for operation up to 70°C, but it can be used in higher temperature environments with derating. However, it's recommended to consult the datasheet and application notes for specific guidance on high-temperature operation.