Overview
The SN74AC08DBR, part of the SN74AC08 series, is a quadruple 2-input positive-AND gate integrated circuit produced by Texas Instruments. This device is designed to perform the Boolean function Y = A • B in positive logic, making it a versatile component for various digital logic applications. It operates within a voltage range of 2V to 6V, making it compatible with a wide range of systems.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| VCC (Supply Voltage) | V | 2 | 6 | |
| VIH (High-level Input Voltage) at VCC = 5.5V | V | 3.85 | 3.85 | |
| VIL (Low-level Input Voltage) at VCC = 5.5V | V | 1.65 | 1.65 | |
| IOH (High-level Output Current) at VCC = 5.5V | mA | -24 | -24 | |
| IOL (Low-level Output Current) at VCC = 5.5V | mA | 12 | 24 | |
| tPLH (Propagation Delay, A or B to Y) at VCC = 5V | ns | 1.5 | 5.5 | 7.5 |
| tPHL (Propagation Delay, A or B to Y) at VCC = 5V | ns | 1.5 | 5.5 | 7 |
| TA (Operating Free-Air Temperature) | °C | -40 | 85 | |
| RθJA (Junction-to-Ambient Thermal Resistance) for SSOP package | °C/W | 119.9 |
Key Features
- Operates over a wide voltage range of 2V to 6V.
- Inputs accept voltages up to 6V.
- Maximum propagation delay of 7.5ns at VCC = 5V.
- High-level output current of up to -24mA and low-level output current of up to 24mA at VCC = 5.5V.
- Available in various packages including SSOP, SOIC, PDIP, SOP, and TSSOP.
- Low power dissipation with ICC of up to 40µA at VCC = 5.5V.
Applications
- Digital logic circuits requiring AND gate functionality.
- General-purpose logic in digital systems.
- Embedded systems and microcontrollers.
- Industrial control systems.
- Communication equipment.
Q & A
- What is the primary function of the SN74AC08? The SN74AC08 is a quadruple 2-input positive-AND gate, performing the Boolean function Y = A • B in positive logic.
- What is the operating voltage range of the SN74AC08? The SN74AC08 operates within a voltage range of 2V to 6V.
- What are the typical propagation delays for the SN74AC08 at VCC = 5V? The typical propagation delays are around 5.5ns for both tPLH and tPHL.
- What are the high-level and low-level output currents at VCC = 5.5V? The high-level output current is up to -24mA, and the low-level output current is up to 24mA.
- What are the available package types for the SN74AC08? The SN74AC08 is available in SSOP, SOIC, PDIP, SOP, and TSSOP packages.
- What is the recommended operating temperature range for the SN74AC08? The recommended operating temperature range is -40°C to 85°C.
- How should unused inputs be handled on the SN74AC08? Unused inputs must be held at VCC or GND to ensure proper device operation.
- What is the junction-to-ambient thermal resistance for the SSOP package? The junction-to-ambient thermal resistance for the SSOP package is approximately 119.9°C/W.
- Can the SN74AC08 be used in safety-critical applications? It is important to consult the datasheet and application notes to ensure the device meets the requirements for safety-critical applications.
- Where can I find more detailed information about the SN74AC08? Detailed information can be found in the datasheet and application notes available on the Texas Instruments website.
