Synchronous 4-Bit Binary Counter The SN74F161ANSR is a synchronous 4-bit binary counter manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Part Number:** SN74F161ANSR
- **Type:** Synchronous 4-bit binary counter
- **Logic Family:** 74F
- **Package:** SOIC (Small Outline Integrated Circuit)
- **Operating Voltage:** 4.5V to 5.5V
- **Operating Temperature Range:** -40°C to +85°C
- **Count Frequency:** Up to 100 MHz (typical)
- **Number of Bits:** 4
- **Reset Type:** Synchronous reset (clear)
- **Load Type:** Synchronous parallel load
- **Output Type:** TTL (Transistor-Transistor Logic) compatible
- **Propagation Delay:** Typically 6 ns (varies with conditions)
- **Current Consumption:**
- **ICC (Static):** 40 mA (max)
- **ICC (Dynamic):** Depends on switching frequency
### **Descriptions:**
- The SN74F161ANSR is a high-speed, synchronous 4-bit binary counter with synchronous reset and parallel load capabilities.
- It operates in a fully synchronous mode, meaning all state changes occur on the rising edge of the clock input.
- It features a carry output for cascading multiple counters.
- The synchronous clear function allows the counter to be reset to zero on the next clock edge.
- The parallel load feature enables preset values to be loaded into the counter.
### **Features:**
- **Synchronous Counting:** All flip-flops are clocked simultaneously.
- **Parallel Load Capability:** Allows loading of preset data.
- **Synchronous Clear:** Resets the counter to zero on the clock edge.
- **Carry Output (RCO):** Enables cascading of multiple counters.
- **High-Speed Operation:** Suitable for high-performance applications.
- **TTL-Compatible Inputs and Outputs:** Ensures compatibility with standard logic levels.
- **Wide Operating Voltage Range:** 4.5V to 5.5V.
- **Industrial Temperature Range:** -40°C to +85°C.
This information is based solely on the manufacturer's datasheet and technical documentation.
