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CD74ACT191E from RCA

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CD74ACT191E

Manufacturer: RCA

Presettable Synchronous 4-Bit Binary Up/Down Counter

Partnumber Manufacturer Quantity Availability
CD74ACT191E RCA 25 In Stock

Description and Introduction

Presettable Synchronous 4-Bit Binary Up/Down Counter The CD74ACT191E is a synchronous, reversible up/down counter manufactured by RCA. Here are the factual specifications from Ic-phoenix technical data files:

- **Manufacturer**: RCA  
- **Logic Family**: ACT (Advanced CMOS Technology)  
- **Supply Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: -55°C to +125°C  
- **Counting Modes**: Up or Down (selectable)  
- **Maximum Clock Frequency**: 100 MHz (typical)  
- **Number of Bits**: 4  
- **Output Type**: Standard  
- **Package Type**: PDIP (Plastic Dual In-line Package)  
- **Pin Count**: 16  
- **Features**: Synchronous counting, parallel load capability, ripple clock output  

These are the confirmed specifications for the CD74ACT191E from RCA. No additional guidance or recommendations are provided.

Partnumber Manufacturer Quantity Availability
CD74ACT191E HARRIS 22 In Stock

Description and Introduction

Presettable Synchronous 4-Bit Binary Up/Down Counter The CD74ACT191E is a high-speed synchronous up/down counter manufactured by **HARRIS**. Key specifications include:  

- **Logic Family**: ACT (Advanced CMOS Technology)  
- **Supply Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: -55°C to +125°C  
- **Counting Modes**: Up or Down (selectable)  
- **Maximum Clock Frequency**: 100 MHz (typical)  
- **Number of Bits**: 4-bit binary counter  
- **Output Type**: Standard (TTL-compatible)  
- **Package Type**: PDIP (Plastic Dual In-line Package)  
- **Pin Count**: 16  

The device features asynchronous parallel load, ripple clock output, and carry/borrow outputs for cascading.  

(Note: HARRIS was acquired by **Intersil**, which was later acquired by **Renesas Electronics**.)

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