Overview
The M74HC02B1R is a quad 2-input NOR gate integrated circuit produced by STMicroelectronics. It is fabricated using high-speed CMOS technology, combining the performance of LSTTL (Low-power Schottky Transistor-Transistor Logic) with the low power consumption of CMOS (Complementary Metal-Oxide-Semiconductor). This IC is part of the 74HC series, known for its high noise immunity and stable output. The M74HC02B1R is available in a 14-DIP (Dual In-line Package) and is RoHS compliant and lead-free, making it suitable for a wide range of electronic applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | STMicroelectronics | |
| Logic Type | NOR Gate | |
| Number of Inputs | 2 | |
| Number of Circuits | 4 | |
| Supply Voltage Range | 2 V ~ 6 V | |
| Operating Temperature Range | -55°C ~ 125°C | |
| Mounting Type | Through Hole | |
| Package / Case | 14-DIP (0.300", 7.62mm) | |
| High Level Output Current | -5.2 mA | |
| Low Level Output Current | 5.2 mA | |
| Propagation Delay Time | 75 ns (max) | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- High Speed Performance: The M74HC02B1R offers high-speed performance comparable to LSTTL, with a typical propagation delay of 6 ns at VCC = 5 V.
- Low Power Consumption: It features low power consumption, with a maximum quiescent current of 1 µA at TA = 25 °C.
- High Noise Immunity: The IC has high noise immunity, with input thresholds of 28% VCC (min).
- Output Drive Capability: It can drive up to 10 LSTTL loads and has symmetrical output impedance.
- Wide Operating Voltage Range: The IC operates over a wide voltage range of 2 V to 6 V.
- Static Discharge Protection: All inputs are equipped with protection circuits against static discharge and transient excess voltage.
Applications
The M74HC02B1R is versatile and can be used in a variety of digital logic circuits. Here are some common applications:
- Digital Logic Circuits: It is used in constructing digital logic circuits that require NOR gate functionality.
- Embedded Systems: Suitable for use in embedded systems where low power consumption and high noise immunity are critical.
- Industrial Control Systems: Can be used in industrial control systems that require reliable and stable logic operations.
- Consumer Electronics: Found in various consumer electronics where digital logic functions are necessary.
Q & A
- Q: What is the logic type of the M74HC02B1R?
A: The M74HC02B1R is a quad 2-input NOR gate IC.
- Q: What is the operating voltage range of the M74HC02B1R?
A: The operating voltage range is from 2 V to 6 V.
- Q: What is the propagation delay time of the M74HC02B1R?
A: The maximum propagation delay time is 75 ns.
- Q: Is the M74HC02B1R RoHS compliant?
A: Yes, the M74HC02B1R is RoHS compliant and lead-free.
- Q: What is the package type of the M74HC02B1R?
A: The M74HC02B1R is available in a 14-DIP (Dual In-line Package).
- Q: What is the maximum operating temperature of the M74HC02B1R?
A: The maximum operating temperature is +125°C.
- Q: How many NOR gates are included in the M74HC02B1R?
A: The M74HC02B1R includes four 2-input NOR gates.
- Q: What is the high level output current of the M74HC02B1R?
A: The high level output current is -5.2 mA.
- Q: Does the M74HC02B1R have protection against static discharge?
A: Yes, all inputs are equipped with protection circuits against static discharge and transient excess voltage.
- Q: What is the quiescent current of the M74HC02B1R?
A: The maximum quiescent current is 1 µA at TA = 25 °C.
