DM74LS283M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The Texas Instruments DM74LS283M is a classic 4-bit binary full adder with fast carry propagation in the 74LS TTL logic family in a 16-pin SOIC package. It performs parallel binary addition on two 4-bit operands with carry-in and carry-out. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- DM74LS283M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3300(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-bit parallel binary adder with lookahead carry structure enabling cascading to 8, 16, or 32-bit adders with minimal delay
- 74LS (Low-power Schottky) TTL logic family with 5V operation and high noise immunity for industrial digital logic designs
- 16-pin SOIC surface-mount package (R-PDSO-G16) as pin-compatible drop-in upgrade from DIP package through-hole designs
- Full binary addition with carry-in (C0) and carry-out (C4) pins enabling arithmetic chains and multi-word addition circuits
Applications
The DM74LS283M is used in digital arithmetic circuits requiring binary addition such as ALU building blocks, address calculators, and BCD arithmetic units in legacy digital systems. It can be cascaded with additional 74LS283 devices to construct wide-word adders, and combined with complementing logic for binary subtraction and comparison functions. It remains popular in educational electronics, hardware prototyping, and long-lifecycle industrial controllers that use standard 74-series TTL logic.
Specifications
| YTEOL | 0 |
| Family | LS |
| JESD-30 Code | R-PDSO-G16 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | ADDER/SUBTRACTOR |
| Number of Bits | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Power Supply Current-Max (ICC) | 39mA |
| Propagation Delay (tpd) | 30ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What arithmetic operation does the DM74LS283M perform?
The DM74LS283M performs 4-bit parallel binary addition. It accepts two 4-bit binary operands (A1-A4 and B1-B4) plus a carry-in (C0) and produces a 4-bit sum output (S1-S4) with a carry-out (C4). The look-ahead carry structure minimizes propagation delay compared to ripple-carry designs, enabling faster addition results.
How can multiple DM74LS283M devices be cascaded for wider addition?
Multiple DM74LS283M devices can be cascaded by connecting the carry-out (C4) of the lower-significance stage to the carry-in (C0) of the next higher stage. Two devices form an 8-bit adder, four devices a 16-bit adder, and so on. The fast carry structure limits cascading delay, allowing practical multi-stage arithmetic circuits within the propagation delay budget of standard TTL systems.
What logic family does the DM74LS283M belong to and what are its voltage requirements?
The DM74LS283M belongs to the 74LS (Low-power Schottky) TTL logic family, operating from a single 5V supply (4.75V to 5.25V). It is compatible with other 74LS and standard 74-series TTL devices. The LS family reduces power consumption compared to the original 74-series while maintaining TTL voltage levels (logic low: 0-0.8V, logic high: 2.0-5V), making it directly interoperable with 74, 74S, and 74ALS families.
What package does the DM74LS283M use?
The DM74LS283M is housed in a 16-pin SOIC package (JESD-30 code R-PDSO-G16, Package Equivalence Code SOP16,.25) with 0.25-inch body width and 1.27mm pin pitch. This surface-mount package is the modern equivalent of the 16-pin DIP (Dual In-Line Package) traditionally used by 74LS devices, enabling use in automated SMT assembly while maintaining functional compatibility.
Can the DM74LS283M be used to implement binary subtraction?
Yes, binary subtraction can be implemented using the DM74LS283M combined with inverters and carry-in manipulation. By inverting the subtrahend (B operands) using NOT gates or XOR gates and setting carry-in C0 to logic 1, the circuit computes A minus B using two's complement arithmetic (A + ~B + 1 = A - B). This allows a single DM74LS283M and minimal additional logic to implement both addition and subtraction functions.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4950 | $0.49 |
| 11+ | $0.4125 | $4.54 |
| 49+ | $0.3300 | $16.17 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”