Dual 4-Bit Binary Counters The SNJ54HC393J is a high-speed CMOS dual 4-bit binary ripple counter manufactured by Texas Instruments.
### **Manufacturer Specifications:**
- **Manufacturer:** Texas Instruments
- **Series:** HC (High-Speed CMOS)
- **Logic Type:** Counter
- **Number of Bits per Element:** 4
- **Number of Elements:** 2 (Dual Counter)
- **Trigger Type:** Negative Edge
- **Supply Voltage (VCC):** 2V to 6V
- **Operating Temperature Range:** -55°C to +125°C (Military Grade)
- **Package / Case:** CDIP-14 (Ceramic Dual In-Line Package)
- **Mounting Type:** Through Hole
- **Output Type:** Standard
### **Descriptions and Features:**
- **Dual 4-Bit Binary Counter:** Contains two independent ripple counters, each with a 4-bit output.
- **Negative Edge-Triggered:** Counts on the high-to-low transition of the clock input.
- **Asynchronous Clear:** Each counter has a master reset (MR) input that clears all flip-flops when activated.
- **Wide Operating Voltage:** Supports 2V to 6V, making it compatible with TTL and CMOS logic levels.
- **High Noise Immunity:** CMOS technology provides robust noise resistance.
- **Low Power Consumption:** Typical power dissipation of 80µA (static) at 5V.
- **Military Temperature Range:** Designed for harsh environments (-55°C to +125°C).
- **Applications:** Used in frequency division, digital clocks, control circuits, and general counting applications.
This device is part of the **54-series**, which indicates military-grade reliability and extended temperature range.
