Description
The 74HC93 is a high-speed, silicon-gate CMOS 4-bit binary ripple counter. It is internally organized as a divide-by-two section and a divide-by-eight section. Because these sections are independent, the device is highly versatile, allowing for various counting modes depending on how you connect the external clock inputs (CP0 and CP1) and outputs (Q0–Q3).
The counter stages are triggered by the HIGH-to-LOW transition of the clock signal. Because it is a “ripple” counter, the output states do not change simultaneously; there is a slight delay as the signal propagates through each flip-flop. Consequently, decoded output signals may experience brief “spikes,” so it is generally recommended to avoid using raw decoded outputs as clock or strobe signals for other sensitive logic.
Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.
Features
- 4-bit binary ripple counter
- Independent divide-by-two and divide-by-eight sections
- Asynchronous Master Reset (MR1, MR2) overrides all clock inputs
- High-speed CMOS (HC) technology
- Wide operating voltage range (2V to 6V)
- Compatible with LSTTL logic pinouts
Benefits
- Flexible configuration: can be used as a 4-bit, 3-bit, or independent counter
- High noise immunity compared to traditional bipolar counters
- Asynchronous reset allows for immediate system initialization
- Low power consumption makes it suitable for a variety of digital timing applications
Applications
- Frequency Division (Divide-by-N)
- Digital Clock and Timer Circuits
- Event Counting
- Address Decoding/Sequencing
- General Purpose Digital Logic Design
Package Includes
- 1 x 74HC93 4-Bit Binary Ripple Counter IC (DIP-14 Package)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | 74HC93 |
| Device Type | 4-Bit Binary Ripple Counter |
| Number of Bits | 4 |
| Logic Family | 74HC (High-Speed CMOS) |
| Operating Voltage | 2V to 6V |
| Operating Temperature | -55°C to +125°C |
| Mounting Type | SMD/SMT |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 x 4 x 1 cm |








