The TC4518BF(EL) is a CMOS Dual BCD Up Counter manufactured by Toshiba Semiconductor and Storage. This integrated circuit contains two independent BCD (Binary Coded Decimal) up counters in a single package. Each counter increments its output count on the rising edge of the clock input. The counters are typically used in applications requiring digital counting and display, such as frequency counters, timers, and digital clocks.

Applications

• Frequency Counters: Counting the frequency of an input signal.
• Timers: Measuring elapsed time intervals.
• Digital Clocks: Keeping track of time in digital clock systems.
• Event Counters: Counting the number of occurrences of a specific event.
• Industrial Control: Used in various industrial control systems for counting and timing operations.

Features

• Dual BCD Up Counters: Contains two independent BCD up counters.
• CMOS Technology: Offers low power consumption and high noise immunity.
• Wide Operating Voltage Range: Operates from 3V to 18V typically.
• Synchronous Counting: Counters increment synchronously with the clock input.
• Reset Input: Allows for resetting the counter to zero.

Benefits

• Reduced Component Count: Simplifies circuit design by integrating two counters into a single IC.
• Low Power Consumption: Suitable for battery-powered applications.
• Accurate Counting: Provides accurate counting of events or time intervals.
• Versatile Application: Suitable for a wide range of counting and timing applications.
• Reliable Operation: Provides consistent and reliable performance in various operating conditions.

Additional Details

The TC4518BF(EL) typically comes in a 16-pin SOP (Small Outline Package). Each counter has a clock input (CK), a reset input (RST), and four BCD outputs (QA, QB, QC, QD). The counter increments on the rising edge of the clock input. A high level on the reset input resets the counter to zero. The operating temperature range is typically -40°C to +85°C. The maximum clock frequency is dependent on the supply voltage and operating conditions. The output drive capability is sufficient to drive standard CMOS or TTL logic.