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SN74ALS163B from TI,Texas Instruments

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SN74ALS163B

Manufacturer: TI

Synchronous 4-Bit Binary Counters

Partnumber Manufacturer Quantity Availability
SN74ALS163B TI 817 In Stock

Description and Introduction

Synchronous 4-Bit Binary Counters The SN74ALS163B is a synchronous 4-bit binary counter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Synchronous 4-Bit Binary Counter  
- **Count Method:** Fully Synchronous (All flip-flops clocked simultaneously)  
- **Reset Type:** Synchronous Clear  
- **Operating Voltage:** 4.5V to 5.5V  
- **Maximum Clock Frequency:** 35 MHz (typical)  
- **Propagation Delay:** 13 ns (typical)  
- **Power Dissipation:** 85 mW (typical)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package Type:** PDIP-16, SOIC-16  

### **Descriptions:**  
- The SN74ALS163B is a high-speed synchronous counter with parallel load capability.  
- It features a synchronous clear function, ensuring that the counter resets only on the clock edge.  
- It includes carry look-ahead circuitry for cascading multiple counters.  
- The counter advances on the low-to-high transition of the clock input.  

### **Features:**  
- **Synchronous Operation:** All state changes occur on the rising clock edge.  
- **Parallel Load Capability:** Allows loading of a preset value.  
- **Synchronous Clear:** Resets the counter to zero on the clock edge.  
- **Internal Carry Look-Ahead:** Simplifies cascading for higher-bit counters.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with TTL logic levels.  
- **Wide Operating Voltage Range:** Supports standard 5V logic systems.  

This counter is commonly used in applications such as frequency division, event counting, and digital timing circuits.

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