The M74LS393P is a dual 4-bit binary counter, comprised of two independent 4-bit binary counters in a single package. Each counter has an individual clock input and a master reset input. These counters can be connected in cascade to create an 8-bit counter or used independently for multiple counting applications. It is designed for a wide range of digital counting applications, including frequency division, timing circuits, and event counters.

Applications:

• Frequency division
• Timing circuits
• Event counters
• Digital clocks
• Programmable timers

Features:

• Dual 4-Bit Binary Counters
• Individual Clock Inputs
• Asynchronous Master Reset
• Low Power Consumption

Benefits:

• Dual Counter Functionality: Provides two independent 4-bit counters in a single package.
• Flexible Counting Configurations: Can be used as separate counters or cascaded to form an 8-bit counter.
• Precise Frequency Division: Provides accurate frequency division for timing and clock applications.
• Simplified System Design: Integrated asynchronous master reset simplifies initialization and error recovery.
• Reduced Power Consumption: Low power Schottky technology minimizes power usage.

Additional Details:

The M74LS393P operates within a supply voltage range of 4.75V to 5.25V and is characterized for operation from 0°C to 70°C. It is housed in a 14-pin DIP package. The device includes two clock inputs (CP0 and CP1), eight output pins (QA0, QB0, QC0, QD0 and QA1, QB1, QC1, QD1), and two master reset inputs (MR0 and MR1). The outputs change state on the negative-going edge of the clock pulse. A high level on the master reset input resets all outputs of the respective counter to a low logic level.