| Part Numbers | Manufacturer Name | Datasheet | Logic Type | Direction | Number of Elements | Number of Bits per Element | Reset | Timing | Count Rate | Trigger Type | Voltage - Supply | Operating Temperature | Mounting Type | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SN74LS191N | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Through Hole | 16-DIP (0.300", 7.62mm) | |
| SN74LS191D | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Surface Mount | 16-SOIC (0.154", 3.90mm Width) | |
| SN74LS191NSR | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Surface Mount | 16-SOIC (0.209", 5.30mm Width) | |
| SN74LS191DR | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Surface Mount | 16-SOIC (0.154", 3.90mm Width) | |
| SN74LS191DRE4 | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Surface Mount | 16-SOIC (0.154", 3.90mm Width) | |
| SN74LS191DRG4 | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Surface Mount | 16-SOIC (0.154", 3.90mm Width) | |
| SN74LS191NSRE4 | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Surface Mount | 16-SOIC (0.209", 5.30mm Width) | |
| SN74LS191NSRG4 | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Surface Mount | 16-SOIC (0.209", 5.30mm Width) | |
| SN74LS191NE4 | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Through Hole | 16-DIP (0.300", 7.62mm) | |
| SN74LS191DE4 | TEXAS INSTRUMENTS INC | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 25MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Surface Mount | 16-SOIC (0.154", 3.90mm Width) |
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