Overview
The MC74AC132DG, produced by onsemi, is a Quad 2-Input NAND Schmitt Trigger integrated circuit. This device contains four 2-input NAND gates that are designed to transform slowly changing input signals into sharply defined, jitter-free output signals. It features Schmitt trigger inputs, which use positive feedback to speed up slow input transitions and provide different input threshold voltages for positive and negative-going transitions. This hysteresis is essentially insensitive to temperature and supply voltage variations, offering greater noise margin than conventional NAND gates.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2.0 | 5.0 | 6.0 | V |
| Vin, Vout (DC Input/Output Voltage) | 0 | VCC | V | |
| TA (Operating Ambient Temperature Range) | -40 | 25 | 85 | °C |
| IOH (Output Current - High) | -24 | mA | ||
| IOL (Output Current - Low) | 24 | mA | ||
| tPLH (Propagation Delay) | 2.0 | 13.0 | ns | |
| tPHL (Propagation Delay) | 2.0 | 13.5 | ns | |
| CIN (Input Capacitance) | 4.5 | pF | ||
| CPD (Power Dissipation Capacitance) | 30 | pF |
Key Features
- Schmitt Trigger Inputs: The device uses positive feedback to speed up slow input transitions and provide different input threshold voltages for positive and negative-going transitions.
- Outputs Source/Sink 24 mA: The outputs can source or sink up to 24 mA of current.
- TTL Compatible Inputs (for MC74ACT132): The MC74ACT132 version has inputs that are compatible with TTL (Transistor-Transistor Logic) levels.
- Pb-Free Packages: The devices are available in lead-free packages, making them compliant with environmental regulations.
Applications
The MC74AC132DG is suitable for a variety of applications where clear and stable output signals are required despite noisy or slowly changing input signals. These include:
- Digital Logic Circuits: It can be used in digital logic circuits to improve signal integrity.
- Signal Conditioning: The Schmitt trigger feature makes it ideal for signal conditioning applications.
- Noise Reduction: It helps in reducing noise in digital systems by providing a clear and stable output.
- Automotive and Industrial Control Systems: Its robustness and reliability make it suitable for use in automotive and industrial control systems.
Q & A
- What is the MC74AC132DG?
The MC74AC132DG is a Quad 2-Input NAND Schmitt Trigger integrated circuit produced by onsemi. - What is the purpose of the Schmitt trigger in the MC74AC132DG?
The Schmitt trigger is used to transform slowly changing input signals into sharply defined, jitter-free output signals and to provide different input threshold voltages for positive and negative-going transitions. - What is the output current capability of the MC74AC132DG?
The outputs can source or sink up to 24 mA of current. - Is the MC74AC132DG available in Pb-Free packages?
Yes, the MC74AC132DG is available in lead-free packages. - What is the operating temperature range of the MC74AC132DG?
The operating ambient temperature range is from -40°C to 85°C. - What is the propagation delay of the MC74AC132DG?
The propagation delay (tPLH and tPHL) ranges from 2.0 ns to 13.5 ns depending on the supply voltage and temperature. - Can the MC74AC132DG be used in digital logic circuits?
Yes, it can be used in digital logic circuits to improve signal integrity. - Is the MC74ACT132 version TTL compatible?
Yes, the MC74ACT132 version has inputs that are compatible with TTL levels. - What is the input capacitance of the MC74AC132DG?
The input capacitance (CIN) is typically 4.5 pF. - What is the power dissipation capacitance of the MC74AC132DG?
The power dissipation capacitance (CPD) is typically 30 pF.
