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TC74HC191AP from TOSHIBA

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TC74HC191AP

Manufacturer: TOSHIBA

COMS DIGITAL INTERATED CIRCUIT SILICON MONOLITHIC

Partnumber Manufacturer Quantity Availability
TC74HC191AP TOSHIBA 600 In Stock

Description and Introduction

COMS DIGITAL INTERATED CIRCUIT SILICON MONOLITHIC The TC74HC191AP is a high-speed CMOS 4-bit synchronous up/down counter manufactured by TOSHIBA. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Supply Voltage Range:** 2V to 6V  
- **High-Speed Operation:** 5V, 25°C: 53 MHz (typical)  
- **Low Power Consumption:** 4 μA (max) at 5V  
- **Output Current:** ±4 mA (min) at 5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** DIP-16  

### **Descriptions:**
- The TC74HC191AP is a 4-bit synchronous up/down binary counter with a clock input (CP), up/down control input (U/D), parallel load input (PL), and asynchronous master reset (MR).  
- It features synchronous counting and parallel data loading.  
- The counter can operate in either up or down mode based on the U/D input.  

### **Features:**
1. **Synchronous Counting:** Changes state synchronously with the clock signal.  
2. **Parallel Load Capability:** Allows presetting the counter via parallel inputs.  
3. **Asynchronous Master Reset:** Clears all flip-flops independently of the clock.  
4. **Carry Output (CO):** Provides a ripple carry signal for cascading counters.  
5. **High Noise Immunity:** Compliant with CMOS technology standards.  
6. **Balanced Propagation Delays:** Ensures reliable high-speed operation.  

This information is strictly based on TOSHIBA's official documentation for the TC74HC191AP.

Application Scenarios & Design Considerations

COMS DIGITAL INTERATED CIRCUIT SILICON MONOLITHIC

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