The HD74HC93FPEL is a high-speed 4-bit binary counter manufactured by Renesas Electronics America. It's part of the HC (High-speed CMOS) family, offering performance similar to low-power Schottky TTL circuits but with the advantages of CMOS technology: low power consumption and high noise immunity. The device consists of four master-slave flip-flops internally interconnected to provide either a divide-by-2 counter and a divide-by-8 counter or a single divide-by-16 counter.

Applications

• Frequency dividers: Used to reduce the frequency of a clock signal.
• Timers: Implemented in timing circuits for generating specific time intervals.
• Event counters: Counts the number of occurrences of a specific event.
• Digital clocks: Used in digital clock circuits to keep track of time.
• Sequencers: Implemented in sequential logic circuits for controlling the sequence of operations.

Features

• High-speed operation: Propagation delay is comparable to low-power Schottky TTL.
• Low power consumption: Requires minimal power compared to TTL devices.
• Wide operating voltage range: Functions correctly with supply voltages from 2V to 6V.
• Input clamp diodes: Protect inputs from static discharge and voltage transients.
• Divide-by-2 and divide-by-8 counters: Offers versatile counting configurations.
• 4-bit binary counter: Provides a 4-bit binary count output.

Benefits

• Improved system efficiency: Low power consumption reduces overall system power requirements.
• Enhanced system reliability: Input clamp diodes provide ESD protection.
• Flexible design options: Dual counter configuration allows for various counting schemes.
• Reduced component count: Integrates multiple counting functions into a single chip.
• High noise immunity: Provides stable operation in noisy environments.

Additional Details

The HD74HC93FPEL comes in a 14-pin SOP (Small Outline Package). The two counters can be used independently or cascaded to form a single divide-by-16 counter. The reset inputs (MR1 and MR2) are used to reset the counters to zero. All inputs are TTL compatible. The operating temperature range is -40°C to +85°C. The supply voltage range is 2V to 6V. The typical clock frequency is 25 MHz at VCC=5V.