| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DM7490AN | FAIRCHILD SEMICONDUCTOR CORP | Binary Counter, Decade | - | 1 | 4 | - | - | 32MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Through Hole | 14-DIP (0.300", 7.62mm) | |
| DM74LS191N | FAIRCHILD SEMICONDUCTOR CORP | Binary Counter | Up, Down | 1 | 4 | - | Synchronous | 20MHz | Positive Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Through Hole | 16-DIP (0.300", 7.62mm) | |
| DM74LS90N | FAIRCHILD SEMICONDUCTOR CORP | Counter, Decade | Up | 1 | 4 | Asynchronous | - | 32MHz | Negative Edge | 4.75 V ~ 5.25 V | 0?C ~ 70?C | Through Hole | 14-DIP (0.300", 7.62mm) | |
| DM74LS161AM | FAIRCHILD SEMICONDUCTOR CORP | Binary Counter | Up | 1 | 4 | Asynchronous | Synchronous | - | 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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