SN74LS27D Texas Instruments Integrated Circuit (Other) In Stock
The SN74LS27D is a triple 3-input positive-NOR gate IC from Texas Instruments' LS logic family. It contains three independent NOR gates with totem-pole outputs, 15pF load capacitance rating, and 8mA output sink current. Available in a 14-pin SOIC package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LS27D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1800(MOQ 1)
- 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 SN74LS27D?
- Three independent 3-input NOR gates in a single package maximize logic density on the PCB
- Totem-pole output stage provides fast switching transitions and strong drive capability
- LS (Low-power Schottky) logic family delivers a balance of speed and power consumption
- 14-pin SOIC surface-mount package enables compact board designs with standard footprint
- Wide compatibility with other 74-series logic ICs for easy integration into existing designs
What is SN74LS27D used for?
The SN74LS27D is used in combinational logic circuits, bus arbitration, and control logic systems where NOR gate functions are required with low power consumption. It is commonly found in glue logic applications in embedded systems, CPLDs, and legacy TTL-compatible designs. Its totem-pole output enables direct interfacing with standard TTL and CMOS logic inputs across a wide range of digital system architectures.
What are the specifications of SN74LS27D?
| YTEOL | 0 |
| Family | LS |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | NOR GATE |
| Max I(ol) | 0.008A |
| Number of Functions | 3 |
| Number of Inputs | 3 |
| Output Characteristics | TOTEM-POLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 6.8mA |
| Prop. Delay@Nom-Sup | 15ns |
| Propagation Delay (tpd) | 15ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| 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 | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Where can I find the SN74LS27D datasheet?
SN74LS27D Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74LS27D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many NOR gates does the SN74LS27D contain?
The SN74LS27D contains three independent 3-input NOR gates, all within a single 14-pin SOIC package, allowing designers to implement multiple gate functions without using additional ICs on the board.
What logic family does the SN74LS27D belong to?
The SN74LS27D belongs to the LS (Low-power Schottky) TTL logic family, which provides a balance between speed and power consumption, and is fully compatible with other standard 74-series logic devices.
What is the output sink current of the SN74LS27D?
The SN74LS27D has a maximum output low current (I_OL) of 8mA, which determines the number of standard TTL or LS inputs it can drive simultaneously when in the logic low state.
What package is the SN74LS27D available in?
The SN74LS27D is packaged in a 14-pin SOIC (R-PDSO-G14) surface-mount package, which is compatible with standard PCB assembly processes and suitable for designs requiring compact component placement.
What type of output does the SN74LS27D use?
The SN74LS27D uses totem-pole outputs, which actively drive both logic high and logic low levels, providing fast switching speeds and the ability to source and sink current for reliable signal driving.
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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 |
|---|---|---|
| 1+ | $0.3600 | $0.36 |
| 15+ | $0.3000 | $4.50 |
| 68+ | $0.2400 | $16.32 |
| 201+ | $0.1800 | $36.18 |
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