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| Part Number | SN74LS191D | SN74LS193D | SN74LS191DR | SN74LS191N | SN74LS196D |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | onsemi | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Obsolete | Active | Active | Active |
| Logic Type | Binary Counter | Binary Counter | Binary Counter | Binary Counter | - |
| Direction | Up, Down | Up, Down | Up, Down | Up, Down | - |
| Number of Elements | 1 | 1 | 1 | 1 | - |
| Number of Bits per Element | 4 | 4 | 4 | 4 | - |
| Reset | - | Asynchronous | - | - | - |
| Timing | Synchronous | Synchronous | Synchronous | Synchronous | - |
| Count Rate | 25 MHz | 32 MHz | 25 MHz | 25 MHz | - |
| Trigger Type | Positive Edge | Positive Edge | Positive Edge | Positive Edge | - |
| Voltage - Supply | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V | - |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole | - |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-DIP (0.300", 7.62mm) | - |
| Supplier Device Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-PDIP | - |
