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| Part Number | SN74ALS193ANSR | SN74ALS191ANSR | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Product Status | Discontinued at Digi-Key | Obsolete | 
| Logic Type | Binary Counter | Binary Counter | 
| Direction | Up, Down | Up, Down | 
| Number of Elements | 1 | 1 | 
| Number of Bits per Element | 4 | 4 | 
| Reset | Asynchronous | - | 
| Timing | Synchronous | Synchronous | 
| Count Rate | 30 MHz | 30 MHz | 
| Trigger Type | Positive Edge | Positive Edge | 
| Voltage - Supply | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 16-SOIC (0.209", 5.30mm Width) | 16-SOIC (0.209", 5.30mm Width) | 
| Supplier Device Package | 16-SO | 16-SO |