Synchronous 4-Bit Counters The SNJ54LS163AW is a synchronous 4-bit binary counter manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Series:** 54LS
- **Logic Type:** Synchronous 4-Bit Binary Counter
- **Package / Case:** Ceramic Flatpack (W)
- **Operating Temperature Range:** -55°C to +125°C (Military Grade)
- **Supply Voltage Range:** 4.5V to 5.5V
- **Logic Family:** LS (Low-Power Schottky)
- **Propagation Delay:** Typically 20ns (at 5V)
- **Current - Output High, Low:** ±2.6mA, ±8mA
- **Count Rate:** Up to 32MHz
### **Descriptions:**
- The SNJ54LS163AW is a synchronous presettable 4-bit binary counter with a direct clear input.
- It features fully synchronous operation, meaning all state changes occur on the rising edge of the clock input.
- The counter can be preset in parallel, and the carry output facilitates cascading multiple counters.
- Designed for high-reliability military and aerospace applications due to its ceramic flatpack packaging and extended temperature range.
### **Features:**
- **Synchronous Counting:** All flip-flops are clocked simultaneously.
- **Parallel Load Capability:** Allows presetting the counter to any value.
- **Internal Carry Look-Ahead:** Enables high-speed operation and cascading.
- **Direct Clear Input:** Asynchronous reset function.
- **Fully Buffered Outputs:** Ensures minimal loading effects.
- **Low Power Consumption:** Typical power dissipation of 45mW.
- **Military-Grade Reliability:** Meets MIL-STD-883 standards for harsh environments.
This information is strictly factual and derived from the available knowledge base.
