Overview
The SN74LS266N is a quadruple 2-input exclusive-NOR (XNOR) gate integrated circuit produced by Texas Instruments. This component is part of the 74LS series and is known for its bipolar technology. It features four independent 2-input XNOR gates with open-collector outputs, which allow for multiple-bit comparisons by tying the outputs together. The device is fully compatible with most TTL (Transistor-Transistor Logic) and DTL (Diode-Transistor Logic) circuits, making it versatile for various digital logic applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.75 | 5 | 5.25 | V |
| Input Voltage | VI | - | - | 7 | V |
| Output Current (Low) | IOL | - | - | 8 | mA |
| Operating Temperature | TA | 0 | - | 70 | °C |
| Storage Temperature | TS | -65 | - | 150 | °C |
| Propagation Delay Time (A or B to Y) | tPLH/tPHL | - | 60/25 | - | ns |
| Package Type | - | - | - | PDIP (14 pins) | - |
Key Features
- Four independent 2-input XNOR gates with open-collector outputs.
- Open-collector outputs allow for multiple-bit comparisons by tying outputs together.
- Input clamping diodes simplify system design.
- Fully compatible with most TTL and DTL circuits.
- Can be used as a 4-bit digital comparator.
- Available in PDIP (14 pins) and SOP14 packages.
Applications
- Digital logic drivers.
- Industrial control applications.
- Other digital logic and comparator applications where multiple-bit comparisons are necessary.
Q & A
- What is the SN74LS266N? The SN74LS266N is a quadruple 2-input exclusive-NOR gate integrated circuit.
- What is the supply voltage range for the SN74LS266N? The supply voltage range is from 4.75V to 5.25V.
- What type of outputs does the SN74LS266N have? The SN74LS266N has open-collector outputs.
- Is the SN74LS266N compatible with TTL circuits? Yes, it is fully compatible with most TTL and DTL circuits.
- What are the typical propagation delay times for the SN74LS266N? The typical propagation delay times are 60ns for tPLH and 25ns for tPHL.
- What are the operating temperature ranges for the SN74LS266N? The operating temperature range is from 0°C to 70°C.
- What packages are available for the SN74LS266N? The SN74LS266N is available in PDIP (14 pins) and SOP14 packages.
- Can the SN74LS266N be used as a digital comparator? Yes, it can be used as a 4-bit digital comparator.
- What is the maximum output current for the SN74LS266N? The maximum output current (IOL) is 8mA.
- Is the SN74LS266N RoHS compliant? Yes, the SN74LS266N is RoHS compliant.
