SN74LS85DR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74LS85DR is a 4-bit magnitude comparator IC from Texas Instruments in LS logic family, supporting cascadable comparison of two 4-bit binary numbers with A>B, A=B, and A<B outputs. From $0.753, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74LS85DR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7530(MOQ 100)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-bit cascadable magnitude comparator supporting full comparison of two binary numbers with three output states: A>B, A=B, and A<B
- LS logic family with low power Schottky technology, rated for 15 pF load capacitance and 16 mA output sink current
- 16-pin Small Outline Package (SOIC) with RoHS-compliant Pb-free construction, suitable for compact PCB designs
- Cascade inputs allow multiple SN74LS85DR devices to be chained together for comparing words wider than 4 bits
Applications
The SN74LS85DR is widely used in digital systems requiring numeric comparison, such as address decoders, priority encoders, and sorting circuits in embedded controllers. It is commonly found in industrial control systems, programmable logic designs, and data processing hardware where real-time binary magnitude comparison is needed. Its cascadable architecture makes it ideal for constructing multi-byte comparators in ALUs and custom digital logic boards.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | CASCADABLE |
| Family | LS |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | MAGNITUDE COMPARATOR |
| Max I(ol) | 0.016A |
| Number of Bits | 4 |
| Number of Functions | 4 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 20mA |
| Prop. Delay@Nom-Sup | 35ns |
| Propagation Delay (tpd) | 45ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | YES |
| 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 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 | Small Outline Packages |
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 | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74LS85DR:
Frequently Asked Questions
What is the SN74LS85DR and what does it do?
The SN74LS85DR is a 4-bit magnitude comparator IC from Texas Instruments. It compares two 4-bit binary numbers (A and B) and provides three outputs indicating whether A is greater than, equal to, or less than B. It operates in the LS (Low-power Schottky) logic family and supports cascading for wider word comparisons.
Can multiple SN74LS85DR devices be cascaded for larger bit-width comparisons?
Yes, the SN74LS85DR includes dedicated cascade inputs (A>B, A=B, A<B) that allow multiple devices to be chained together. For example, two SN74LS85DR ICs can compare two 8-bit numbers by connecting the output of the less-significant stage to the cascade inputs of the more-significant stage, enabling scalable magnitude comparison beyond 4 bits.
What is the package type and is the SN74LS85DR RoHS compliant?
The SN74LS85DR comes in a 16-pin Small Outline IC (SOIC) package, designated as R-PDSO-G16. It carries the Pb-free (Pbfree) designation with JESD-609 code e4, confirming full RoHS compliance. This makes it suitable for use in environmentally regulated consumer and industrial electronic products.
What are the typical applications of the SN74LS85DR?
The SN74LS85DR is used in address comparison circuits, digital sorting logic, priority encoders, ALU building blocks, and industrial control systems. Its ability to compare 4-bit values in real time makes it well suited for embedded systems, custom logic boards, and any application requiring fast hardware-level magnitude comparison.
Where can I buy the SN74LS85DR and what is the price?
The SN74LS85DR is available from authorized distributors worldwide starting from approximately $0.753 per unit. It is stocked by major global electronics distributors and can be sourced with worldwide shipping. You can submit an inquiry on FindMyChip to get competitive quotes from multiple suppliers.
Related Guides
How to Choose Samsung CL32B226KAJNNNE 22uF 25V X7R 1210 MLCC: Selection Guide for Decoupling and Bulk Capacitance
Complete selection guide for the Samsung CL32B226KAJNNNE 22uF 25V X7R 1210 MLCC: DC bias derating, temperature stability, ESR, and AEC-Q200 compliance for industrial decoupling applications.
Jun 12, 2026
How to Choose Samsung CL05A106MP5NUNC 10uF 10V X5R 0402 MLCC: Selection Guide for Compact Decoupling
Complete selection guide for Samsung CL05A106MP5NUNC 10uF 10V X5R 0402 MLCC: DC bias derating, package tradeoffs, and sourcing tips for compact decoupling.
Jun 12, 2026
ADSP-BF548BBCZ-5A Blackfin DSP Design Guide: Clocking, DDR, and Peripheral Configuration
Complete design guide for the ADSP-BF548BBCZ-5A 533 MHz Blackfin DSP: PLL sequencing, DDR memory timing, power rail order, and peripheral configuration for HMI, audio, and communications applications.
Jun 11, 2026
CL05B104KO5NNNC & 0402 X7R MLCC Selection Guide: How to Choose a 100 nF Decoupling Capacitor
A practical guide to selecting 100 nF 0402 X7R MLCCs for bypass and decoupling. Compare CL05B104KO5NNNC, CL21B104KBCNNNC, CL05B103KB5NNNC and choose the right voltage rating, dielectric, and package.
Jun 11, 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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.9148 | $91.48 |
| 250+ | $0.8600 | $215.00 |
| 500+ | $0.8446 | $422.28 |
| 1000+ | $0.7780 | $778.00 |
| 2500+ | $0.7710 | $1927.50 |
| 5000+ | $0.7530 | $3765.00 |
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.”