Overview
The CD74HC132MT is a high-speed CMOS logic integrated circuit produced by Texas Instruments. This device contains four independent 2-input NAND gates, each performing the Boolean function Y = A ● B in positive logic. The gates feature Schmitt-trigger inputs, which provide hysteresis and make the device highly tolerant to slow or noisy inputs. The CD74HC132MT is available in a 14-pin SOIC (D) package and operates over a wide temperature range of –55°C to +125°C, making it suitable for various industrial and commercial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 14 | - |
| Operating Temperature Range | –55 to 125 | °C |
| Supply Voltage (VCC) | 2 to 6 | V |
| Input Voltage (VI) | 0 to VCC | V |
| Output Voltage (VO) | 0 to VCC | V |
| Input Leakage Current (II) | ±0.1 to ±1 | µA |
| Supply Current (ICC) | 2 to 40 | µA |
| Input Capacitance (Ci) | 10 | pF |
| Junction-to-Ambient Thermal Resistance (RθJA) | 133.6 | °C/W |
Key Features
- Buffered Inputs: The device features buffered inputs which help in reducing the load on the preceding stage.
- Wide Operating Temperature Range: Operates over a wide temperature range of –55°C to +125°C.
- Significant Power Reduction: Compared to LSTTL logic ICs, the CD74HC132MT offers significant power reduction.
- Supports Fanout up to 10 LSTTL Loads: Capable of driving up to 10 LSTTL loads.
- Schmitt-Trigger Inputs: Provides hysteresis, making the device tolerant to slow or noisy inputs and helping in noise rejection.
- Balanced CMOS Push-Pull Outputs: Ensures balanced propagation delay and transition times.
Applications
- Alarm / Tamper Detect Circuit: Can be used in alarm systems to detect tampering.
- S-R Latch: The device can be used to create active-low SR latches.
- General Logic Circuits: Suitable for various logic circuits requiring NAND gate functionality.
- Industrial and Commercial Systems: Due to its wide operating temperature range, it is suitable for use in industrial and commercial environments.
Q & A
- What is the CD74HC132MT?
The CD74HC132MT is a high-speed CMOS logic integrated circuit containing four independent 2-input NAND gates with Schmitt-trigger inputs.
- What is the operating temperature range of the CD74HC132MT?
The device operates over a temperature range of –55°C to +125°C.
- What is the supply voltage range for the CD74HC132MT?
The supply voltage (VCC) ranges from 2 to 6 volts.
- What are the key features of the CD74HC132MT?
Key features include buffered inputs, wide operating temperature range, significant power reduction, support for up to 10 LSTTL loads, Schmitt-trigger inputs, and balanced CMOS push-pull outputs.
- How many NAND gates does the CD74HC132MT contain?
The device contains four independent 2-input NAND gates.
- What is the package type of the CD74HC132MT?
The device is available in a 14-pin SOIC (D) package.
- What are some common applications of the CD74HC132MT?
Common applications include alarm/tamper detect circuits, S-R latches, and general logic circuits.
- How does the Schmitt-trigger input help in the CD74HC132MT?
The Schmitt-trigger input provides hysteresis, making the device tolerant to slow or noisy inputs and helping in noise rejection.
- What is the maximum fanout for the CD74HC132MT?
The device can drive up to 10 LSTTL loads.
- How should unused inputs be terminated in the CD74HC132MT?
Unused inputs should be terminated to either VCC or ground, either directly or with a pull-up or pull-down resistor.
