The 74HC40103 is an 8-bit synchronous binary down counter IC designed for counting applications in digital systems. It counts down from a preset value and provides an output when it reaches zero. This IC is widely used in timers, frequency dividers, and other counting-related applications. The IC is available in an SMD package, making it ideal for compact and space-efficient designs.
Features
- 8-Bit Synchronous Binary Down Counter: Provides an 8-bit counting capability with synchronous operation, meaning all bits are updated simultaneously with the clock signal.
- Programmable Load Function: Allows the counter to be preset to any value, from which it will count down.
- Zero Detection Output: Includes a terminal that goes low when the counter reaches zero, enabling it to signal the end of a counting sequence or trigger other events in the system.
- High-Speed Operation: Capable of operating at high speeds, making it suitable for fast counting applications.
- Synchronous Clear Function: Allows the counter to be reset synchronously with the clock signal.
- SMD Package: Available in various surface-mount packages, such as SOIC, TSSOP, etc., ideal for integration into high-density PCB designs.
Specifications
- Counting Range: 8 bits (0 to 255)
- Supply Voltage: 2V to 6V
- Input Voltage: 0V to Vcc
- Maximum Clock Frequency: 30 MHz typical at Vcc = 5V
- Propagation Delay: 18 ns typical at Vcc = 5V
- Operating Temperature: -40°C to 85°C
- Package Type: SMD
- Pin Count: 16
Note: Product images are for illustrative purposes only and may differ from the actual product.
