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DM54191J from NS,National Semiconductor

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DM54191J

Manufacturer: NS

Synchronous Up/Down 4-Bit Binary Counter with Mode Control

Partnumber Manufacturer Quantity Availability
DM54191J NS 10 In Stock

Description and Introduction

Synchronous Up/Down 4-Bit Binary Counter with Mode Control The part **DM54191J** is manufactured by **National Semiconductor (NS)**.  

### Key Specifications:  
- **Function**: 4-bit binary up/down counter with asynchronous reset  
- **Logic Family**: TTL (Transistor-Transistor Logic)  
- **Package**: 16-pin ceramic DIP (Dual In-line Package)  
- **Supply Voltage (Vcc)**: 4.75V to 5.25V (standard TTL levels)  
- **Operating Temperature Range**: 0°C to +70°C (commercial grade)  
- **Propagation Delay**: Typically 24ns (max 36ns)  
- **Power Dissipation**: ~100mW (typical)  
- **Output Drive**: Standard TTL fan-out (10 LS-TTL loads)  

### Features:  
- Synchronous counting (clocked operation)  
- Asynchronous master reset (MR)  
- Separate up/down count control inputs  
- Parallel load capability  

This information is based on the original NS datasheet for the DM54191J.

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