Overview
The 74HC32D/S400118, produced by NXP USA Inc. (now part of Nexperia), is a high-speed CMOS quad 2-input OR gate. This integrated circuit is fabricated using silicon gate C2MOS technology, which combines the high speed of LSTTL (Low-power Schottky Transistor-Transistor Logic) with the low power dissipation of CMOS (Complementary Metal-Oxide-Semiconductor) technology.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Type Number | 74HC32D | - |
| Supply Voltage (VCC) | 2.0 to 6.0 | V |
| Logic Switching Levels | CMOS | - |
| Output Drive Capability | ± 5.2 | mA |
| Propagation Delay (tpd) | 6.0 ns (typ. at VCC = 5 V) | ns |
| Maximum Frequency (fmax) | 36 MHz | MHz |
| Number of Bits | 4 | - |
| Power Dissipation | Low | - |
| Operating Temperature (Tamb) | -40 to 125 | °C |
| Package | SO14 (SOT108-1) | - |
Key Features
High Speed: The 74HC32D achieves high-speed operation with a typical propagation delay of 6 ns at VCC = 5 V.
Low Power Dissipation: It features low power consumption, with a maximum quiescent current of 1.0 µA at 25°C.
Wide Operating Voltage Range: The device operates over a wide supply voltage range from 2.0 to 6.0 V.
High Noise Immunity: The internal circuit includes buffer outputs that provide high noise immunity and stable output.
Protection Circuits: All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Symmetrical Output Impedance: Ensures balanced propagation delays and stable output levels.
Applications
The 74HC32D is suitable for various digital logic applications, including:
Digital Logic Circuits: Ideal for constructing complex digital logic circuits due to its quad 2-input OR gate configuration.
Interface Circuits: Can be used to interface inputs to voltages in excess of VCC with the help of current limiting resistors.
High-Speed Data Processing: Applicable in high-speed data processing systems where low power consumption and high noise immunity are crucial.
Embedded Systems: Useful in embedded systems requiring reliable and efficient digital logic operations.
Q & A
- Q: What is the primary function of the 74HC32D?
A: The 74HC32D is a quad 2-input OR gate, meaning it has four independent OR gates, each with two inputs.
- Q: What is the supply voltage range for the 74HC32D?
A: The supply voltage range is from 2.0 to 6.0 V.
- Q: What is the typical propagation delay of the 74HC32D at VCC = 5 V?
A: The typical propagation delay is 6 ns at VCC = 5 V.
- Q: What type of logic levels does the 74HC32D support?
A: The 74HC32D supports CMOS logic levels.
- Q: What is the maximum operating temperature for the 74HC32D?
A: The maximum operating temperature is 125°C, with a range of -40 to 125°C.
- Q: Does the 74HC32D have built-in protection against static discharge?
A: Yes, all inputs are equipped with protection circuits against static discharge or transient excess voltage.
- Q: What package type is the 74HC32D available in?
A: The 74HC32D is available in the SO14 (SOT108-1) package.
- Q: Is the 74HC32D RoHS compliant?
A: Yes, the 74HC32D is RoHS compliant.
- Q: What are the key benefits of using the 74HC32D in digital logic circuits?
A: The key benefits include high speed, low power dissipation, high noise immunity, and a wide operating voltage range.
- Q: Can the 74HC32D be used in high-speed data processing applications?
A: Yes, it is suitable for high-speed data processing due to its fast propagation delay and low power consumption.
