SN74ALS518DW Texas Instruments Integrated Circuit (Other) In Stock
The SN74ALS518DW is an 8-bit identity comparator IC from Texas Instruments with open-collector, non-inverting outputs and pull-up resistors on Q inputs. It operates from 4.5V to 5.5V supply, supports cascadable designs, and comes in a 20-pin SOIC package. From $5.15, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74ALS518DW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.1500(MOQ 37)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74ALS518DW?
- 8-bit identity comparator with open-collector non-inverting outputs for flexible logic interfacing
- Integrated pull-up resistors on Q inputs simplify PCB design and reduce external component count
- Cascadable architecture enables expansion to wider bit-width comparison applications
- ALS family logic offers low power consumption with high-speed switching performance
- Wide supply voltage range of 4.5V to 5.5V ensures compatibility with standard TTL systems
What is SN74ALS518DW used for?
The SN74ALS518DW is widely used in digital systems requiring byte-wide data comparison, such as address decoding, data validation, and memory mapping circuits. Its cascadable design makes it ideal for building wider comparators in microprocessor and DSP systems. The open-collector outputs allow easy bus sharing and wired-AND configurations in industrial and embedded control applications.
What are the specifications of SN74ALS518DW?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH PULL-UP RESISTORS ON Q INPUTS; CASCADABLE |
| Family | ALS |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | IDENTITY COMPARATOR |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Output Characteristics | OPEN-COLLECTOR |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 17mA |
| Prop. Delay@Nom-Sup | 33ns |
| Propagation Delay (tpd) | 33ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the SN74ALS518DW datasheet?
SN74ALS518DW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ALS518DW?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74ALS518DW and what does it do?
The SN74ALS518DW is an 8-bit identity comparator IC from Texas Instruments. It compares two 8-bit words and provides an active-low output when both inputs are identical. It features open-collector, non-inverting outputs and includes pull-up resistors on Q inputs, making it suitable for bus comparison applications.
What is the supply voltage range for the SN74ALS518DW?
The SN74ALS518DW operates from a supply voltage range of 4.5V to 5.5V, which is standard for ALS-family TTL logic devices. This makes it compatible with 5V digital logic systems commonly found in industrial and embedded designs.
Can the SN74ALS518DW be used in cascaded configurations?
Yes, the SN74ALS518DW is designed to support cascadable configurations. Its enable input and open-collector outputs allow multiple devices to be connected together to compare wider data words beyond 8 bits, making it flexible for larger system designs.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 37+ | $8.0500 | $297.85 |
| 150+ | $7.1913 | $1078.69 |
| 250+ | $7.1500 | $1787.50 |
| 500+ | $5.8000 | $2900.00 |
| 1000+ | $5.4700 | $5470.00 |
| 10000+ | $5.1500 | $51500.00 |
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