STMicroelectronics M74HC51M1R Dual 2-Wide 2-Input, 2-Wide 3-Input AND-OR-INVERT Gate

The M74HC51M1R from STMicroelectronics is a high-speed CMOS Dual 2-Wide 2-Input, 2-Wide 3-Input AND-OR-INVERT gate integrated circuit, designed to operate with a power supply range of 2V to 6V. This versatile logic gate combines the functionality of multiple logic types into a single package, making it ideal for a variety of complex digital applications.

Constructed to be pin-compatible with the corresponding Bipolar-LS TTL function, the M74HC51M1R offers the inherent advantages of the CMOS technology, including the high noise immunity and the low power consumption. With its balanced propagation delays and fast output transition, this component is suitable for interfacing with TTL levels and can be used in mixed 5V and 3.3V applications.

Key Features:

• High speed operation: Typical t<sub>pd of 8ns at V<sub>CC = 5V
• Low power dissipation: I<sub>CC is 1µA maximum at TA = 25°C
• High noise immunity: V<sub>NIH and V<sub>NIL of 28% V<sub>CC minimum
• Power down protection on inputs and outputs
• Symmetrical output impedance: |I<sub>OH| = I<sub>OL = 4mA (min) at V<sub>CC = 4.5V
• Pin and function compatible with 74 series logic
• Multiple package options: SO-14 and TSSOP-14

This device integrates two individual 2-wide 2-input AND gates and a 2-wide 3-input AND gate, each with an OR and INVERT function. The M74HC51M1R is capable of driving up to 10 LSTTL loads, which makes it highly versatile for interfacing with other logic families.

The M74HC51M1R is provided in a 14-pin package, ensuring a compact footprint for dense PCB layouts. It is specified for use over a broad temperature range from -55°C to +125°C, making it suitable for industrial and automotive applications that require robust performance under extreme conditions.

Whether you are designing consumer electronics, automotive systems, or complex computing hardware, the M74HC51M1R offers a reliable and efficient solution for your digital logic needs. Its combination of speed, power efficiency, and noise immunity makes it a smart choice for modern electronic designs.