The TC4521BP is a CMOS Programmable Frequency Divider manufactured by Toshiba Semiconductor and Storage. This integrated circuit provides a highly flexible means of dividing an input frequency by a user-defined factor. The division ratio is determined by a combination of an internal counter and external programming inputs. It is often used in applications requiring precise frequency synthesis or timing control.

Applications

• Frequency Synthesis: Generating specific frequencies from a reference frequency.
• Timers: Creating precise time intervals.
• Phase-Locked Loops (PLLs): Used in PLL circuits for frequency division and multiplication.
• Microprocessor Clock Generation: Generating clock signals for microprocessors.
• Communication Systems: Employed in communication systems for frequency modulation and demodulation.

Features

• Programmable Frequency Division: Allows for programming the division ratio.
• CMOS Technology: Offers low power consumption and high noise immunity.
• Wide Operating Voltage Range: Typically operates from 3V to 18V.
• High Frequency Operation: Can operate at relatively high input frequencies.
• Versatile Division Ratios: Supports a wide range of division ratios.

Benefits

• Flexible Frequency Control: Provides precise control over the output frequency.
• Low Power Consumption: Suitable for battery-powered and energy-efficient designs.
• Simplified Circuit Design: Reduces the complexity of frequency synthesis circuits.
• Improved System Performance: Enhances system performance through accurate frequency control.
• Reliable Operation: Provides consistent and dependable operation.

Additional Details

The TC4521BP typically comes in a 16-pin DIP (Dual In-Line Package). It includes a clock input (CK), several programming inputs for setting the division ratio, and an output (Q). The division ratio can be set using external resistors or logic levels. The exact programming scheme depends on the specific configuration. The operating temperature range is typically -40°C to +85°C. The maximum input frequency depends on the supply voltage and operating conditions. The output is designed to drive standard CMOS and TTL logic levels.