| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| 74AC191CW | Up/Down Counter with Preset and Ripple Clock | Fairchild-Semiconductor | - | - | - | - | 115 K |
| 74AC191PC | Up/Down Counter with Preset and Ripple Clock | Fairchild-Semiconductor | MDIP | 16 | - | - | 115 K |
| 74F191CW | Up/Down Binary Counter with Preset and Ripple Clock | Fairchild-Semiconductor | - | - | - | - | 77 K |
| 74F191PC | Up/Down Binary Counter with Preset and Ripple Clock | Fairchild-Semiconductor | MDIP | 16 | - | - | 77 K |
| 74F191SC | Up/Down Binary Counter with Preset and Ripple Clock | Fairchild-Semiconductor | SOIC | 16 | - | - | 77 K |
| 74F191SCX | Up/Down Binary Counter with Preset and Ripple Clock | Fairchild-Semiconductor | SOIC | 16 | - | - | 77 K |
| 74F191SJ | Up/Down Binary Counter with Preset and Ripple Clock | Fairchild-Semiconductor | SOIC | 16 | - | - | 77 K |
| 74F191SJX | Up/Down Binary Counter with Preset and Ripple Clock | Fairchild-Semiconductor | SOIC | 16 | - | - | 77 K |
| DM74LS191M | Synchronous 4-Bit Up/Down Counter With Mode Control | Fairchild-Semiconductor | SOIC | 16 | - | - | 72 K |
| DM74LS191MX | Synchronous 4-Bit Up/Down Counter With Mode Control | Fairchild-Semiconductor | SOIC | 16 | - | - | 72 K |
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