Product Overview: M74HC393B1R from STMicroelectronics

The M74HC393B1R is a high-speed CMOS dual binary counter integrated circuit, designed and manufactured by the renowned semiconductor company, STMicroelectronics. This device features two independent 4-bit binary counters with separate reset inputs, making it an ideal choice for a wide range of counting applications in both commercial and industrial environments.

Each counter progresses through a binary sequence from 0 to 15, and the counters can be cascaded easily by feeding the ripple carry output to the count input of the subsequent counter. The M74HC393B1R operates at a voltage range from 2V to 6V, providing the flexibility to work with various logic levels and ensuring compatibility with other standard logic families.

The high-speed performance of the M74HC393B1R is complemented by its low power consumption, a hallmark of CMOS technology. This makes it suitable for battery-operated devices and applications where power efficiency is critical. The counter also boasts a high noise immunity characteristic of CMOS devices, ensuring reliable operation even in electrically noisy environments.

Key Features

• Supply Voltage Range: 2V to 6V
• High-Speed Operation: Typical clock frequency is 72 MHz (at 4.5V)
• Low Power Consumption: 20 μA maximum ICC at 4.5V
• Dual 4-Bit Binary Counter with Separate Reset
• Medium-Speed Operation: 12 MHz (Typ) at Vcc = 6V
• High Noise Immunity: VNIH = VNIL = 28% Vcc (Min)
• Output Drive Capability: 10 LSTTL Loads
• Standardized, Symmetrical Output Characteristics

The M74HC393B1R comes in a DIP-14 (Dual In-line Package) or SO-14 (Small Outline Package) format, providing options for different types of PCB layouts and assembly techniques. Its robust design ensures that it can operate over a wide temperature range, maintaining functionality from -55°C to +125°C.

Whether it's used in timing circuits, system monitoring, or digital counters, the M74HC393B1R is a reliable and efficient solution for designers looking to leverage the performance and quality assurance that STMicroelectronics provides.