Professional IC Distribution & Technical Solutions

The 74HC163A is a high-speed CMOS 4-bit synchronous binary counter manufactured by Toshiba (TOS).

Key Specifications:

• Logic Family: 74HC (High-Speed CMOS)
• Counter Type: Synchronous, 4-bit binary
• Operating Voltage: 2V to 6V
• Clock Frequency: Up to 50 MHz (typical at 5V)
• Propagation Delay: 15 ns (typical at 5V)
• Reset Function: Synchronous (active LOW)
• Parallel Load Capability: Yes (synchronous)
• Output Drive Capability: Standard CMOS levels
• Package Options: DIP-16, SOP-16, TSSOP-16
• Operating Temperature Range: -40°C to +85°C

Descriptions:

The 74HC163A is a synchronous 4-bit binary counter with a synchronous reset and parallel load capability. It counts on the rising edge of the clock signal and can be reset or loaded in sync with the clock.

Features:

• Synchronous Counting: All flip-flops change state simultaneously.
• Synchronous Reset: Clears the counter to zero on the next clock edge.
• Parallel Load: Allows presetting the counter via data inputs.
• Carry Output: Enables cascading multiple counters.
• Low Power Consumption: Typical 4 µA quiescent current.
• Wide Operating Voltage: Compatible with 3.3V and 5V systems.

This IC is commonly used in digital counters, frequency dividers, and timing applications.