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- Typical operating frequency: 50 MHz
- Typical propagation delay: 13 ns (Ck to QA)
- Wide operating supply voltage range: 2โ6V
- Low input current: <1 ยตA
- Low quiescent supply current: 80 ยตA maximum (74HC Series)
- Fanout of 10 LS-TTL loads
Dual 4-bit Binary Ripple Counter IC - 74HC393
The 74HC Series 74HC393 is a 14 Pin Dual 4-bit Binary Ripple Counter ICย having 2V to 6V Operating Voltage range and 50 Mhz Clock Frequency.ย Each counterย features a clock input (nCP), an overriding asynchronous master reset input (nMR), and 4ย buffered parallel outputs (nQ0 to nQ3).
The counter advances on the HIGH-to-LOWย transition of nCP. A HIGH on nMR clears the counter stages and forces the outputs LOW,ย independent of the state of nCP. Inputs include clamp diodes. This enables the use ofย current limiting resistors to interface inputs to voltages in excess of VCC.
check out :ย Dual 4-bit Decade Ripple Counter IC - 74HC390
Pinout:

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Package Includes:
- 1 x IC - 74HC393
Specifications:
Supply Voltage | ? 0.5 to + 7.0V |
DC Input Voltage | ? 1.5 to VCC + 1.5V |
DC Output Voltage | ? 0.5 to VCC + 0.5V |
Clamp Diode Current | ยฑ 20 mA |
DC Output Current, per pin | ยฑ 25 mA |
DC VCC or GND Current, per pin | ยฑ 50 mA |
Storage Temperature Range | ? 65ยฐC to + 150 ยฐC |
Power Dissipation | 500 mW |
Lead Temperature | 260 ยฐC |
Additional Resources
1.What is 74HC393?
- The 74HC393 is a dual 4-stage binary ripple counter. Each counter has a clock input (nCP), a master reset input (nMR), and four buffered parallel outputs (nQ0 to nQ3). On the HIGH-to-LOW transition of nCP, the counter advances.
2.How does 74HC93 counter work?
- The 74HC93 is made up of four master-slave flip-flops that are internally linked to provide a divide-by-two and a divide-by-eight section. Each section has its own clock input (CP0 and CP1) to initiate counter state changes on the HIGH-to-LOW clock transition.
Provides a space-saving solution without compromising performance. The IC operates smoothly, and the dual counter feature is a big plus. Highly recommended if you are trying to reduce board sizes.
An essential IC for anyone working on advanced electronics projects. The dual counter functionality simplifies complex counting tasks. I would rate this product a 5 star.
This IC simplified what would have been a complex project involving multiple counters. The performance is reliable, and the integration is seamless. You should definitely buy this product.
Very effective for synchronous counters and other advanced applications. The consistent performance and ease of use make it invaluable. This product is a must-have for electronics enthusiasts.
Great for tackling complex counting tasks. Its dual functionality provides flexibility in circuit design, and it