Overview
The SN74AC86DRE4 is a quadruple 2-input exclusive-OR gate produced by Texas Instruments. This device is part of the 74AC series, known for its high-speed and low-power CMOS logic. The SN74AC86 performs the Boolean function Y = A ⊕ B or Y = AB + AB in positive logic, making it useful in various digital logic applications.
The device is available in several package options, including the SOIC (D) package, which is specified by the 'DRE4' suffix. This package type is a 14-pin Small Outline Integrated Circuit (SOIC) package, making it suitable for a wide range of electronic designs where space efficiency is important.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 2 | 6 | V | |
| VIH High-Level Input Voltage (VCC = 5.5V) | 1.85 | V | ||
| VIL Low-Level Input Voltage (VCC = 5.5V) | 1.65 | V | ||
| IOH High-Level Output Current (VCC = 5.5V) | -24 | mA | ||
| IOL Low-Level Output Current (VCC = 5.5V) | 24 | mA | ||
| tPLH Propagation Delay Time (VCC = 5V) | 1.5 | 4.5 | 8.5 | ns |
| tPHL Propagation Delay Time (VCC = 5V) | 1.5 | 4.5 | 8.5 | ns |
| TA Operating Free-Air Temperature | -40 | 85 | °C | |
| Tstg Storage Temperature Range | -65 | 150 | °C |
Key Features
- Operates over a supply voltage range of 2V to 6V.
- Inputs accept voltages up to 6V.
- Maximum propagation delay time of 9ns at 5V.
- High-level output current of up to -24mA and low-level output current of up to 24mA at 5.5V.
- Available in several package options including SOIC (D), SSOP (DB), PDIP (N), SOP (NS), and TSSOP (PW).
- Low power consumption with ICC of 20µA maximum at 5.5V.
Applications
The SN74AC86 is versatile and can be used in various digital logic circuits. Here are some common applications:
- Exclusive-OR logic gates in digital circuits.
- True/complement elements where one input can reproduce the other input in true or inverted form.
- Parity generators and checkers.
- Control logic in digital systems.
- Signal processing and data manipulation circuits.
Q & A
- What is the primary function of the SN74AC86?
The SN74AC86 is a quadruple 2-input exclusive-OR gate, performing the Boolean function Y = A ⊕ B.
- What is the operating voltage range of the SN74AC86?
The device operates over a supply voltage range of 2V to 6V.
- What are the propagation delay times for the SN74AC86 at 5V?
The propagation delay times (tPLH and tPHL) are typically 4.5ns with a maximum of 8.5ns at 5V.
- What are the output current capabilities of the SN74AC86?
The device can source up to -24mA and sink up to 24mA at 5.5V.
- What are the common package options for the SN74AC86?
The device is available in SOIC (D), SSOP (DB), PDIP (N), SOP (NS), and TSSOP (PW) packages.
- How should unused inputs be handled on the SN74AC86?
Unused inputs must be held at VCC or GND to ensure proper device operation.
- What is the storage temperature range for the SN74AC86?
The storage temperature range is -65°C to 150°C.
- What are some common applications of the SN74AC86?
Common applications include exclusive-OR logic gates, true/complement elements, parity generators, control logic, and signal processing circuits.
- How does the SN74AC86 handle input voltages beyond VCC?
Input voltages can exceed VCC if the input current ratings are observed.
- What is the thermal resistance (RθJA) for the SOIC package of the SN74AC86?
The junction-to-ambient thermal resistance (RθJA) for the SOIC package is approximately 119.9°C/W.
