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CD54HCT191F3A from TI,Texas Instruments

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CD54HCT191F3A

Manufacturer: TI

High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counter

Partnumber Manufacturer Quantity Availability
CD54HCT191F3A TI 500 In Stock

Description and Introduction

High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counter The CD54HCT191F3A is a high-speed CMOS logic 4-bit synchronous up/down binary counter manufactured by Texas Instruments (TI). It features synchronous counting and asynchronous parallel loading. Key specifications include:

- **Supply Voltage Range (VCC):** 4.5V to 5.5V  
- **High-Speed Operation:** 50 MHz typical clock frequency  
- **Low Power Consumption:** 80 µA maximum (static)  
- **Output Drive Capability:** 10 LSTTL loads  
- **Operating Temperature Range:** -55°C to +125°C  
- **Logic Family:** HCT (TTL-compatible CMOS)  
- **Package Type:** 16-pin CDIP (Ceramic Dual In-Line Package)  
- **Synchronous Counting:** Yes  
- **Asynchronous Parallel Load:** Yes  
- **Count Modes:** Up/Down selectable  

This device is designed for military and aerospace applications, meeting high-reliability standards.

Partnumber Manufacturer Quantity Availability
CD54HCT191F3A 3 In Stock

Description and Introduction

High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counter The CD54HCT191F3A is a high-speed CMOS logic 4-bit synchronous up/down counter manufactured by Texas Instruments. Key specifications include:

- Logic Family: HCT
- Technology: CMOS
- Supply Voltage Range: 4.5V to 5.5V
- Operating Temperature Range: -55°C to +125°C
- Package Type: CDIP (Ceramic Dual In-line Package)
- Number of Pins: 16
- Counting Sequence: Synchronous up/down
- Features: Asynchronous parallel load, ripple clock output
- Propagation Delay: 24ns (typical) at VCC = 5V, TA = 25°C
- Input Current: ±1µA (max) at VCC = 5.5V, TA = 25°C
- Output Current: 4mA (min) at VCC = 4.5V

The device is designed for military/aerospace applications with radiation-hardened characteristics. It is pin-compatible with standard 54/74HCT191 devices.

Partnumber Manufacturer Quantity Availability
CD54HCT191F3A TI,TI 500 In Stock

Description and Introduction

High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counter The CD54HCT191F3A is a high-speed CMOS logic 4-bit synchronous up/down binary counter manufactured by Texas Instruments (TI).  

### Key Specifications:  
- **Logic Family**: HCT (High-Speed CMOS, TTL compatible)  
- **Supply Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: -55°C to +125°C  
- **Package Type**: Ceramic Flatpack (F3A)  
- **Counting Mode**: Synchronous up/down  
- **Number of Bits**: 4  
- **Propagation Delay**: Typically 20 ns at 5V  
- **Input/Output Compatibility**: TTL-level compatible  
- **Features**: Asynchronous parallel load, ripple clock output, up/down control  

This device is designed for military and aerospace applications due to its extended temperature range and ceramic packaging.  

(Source: Texas Instruments datasheet for CD54HCT191F3A)

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