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| Part Number | SN74LS390D | SN74LS393D | SN74LS90D | SN74LS390N | SN74LS590D | SN74LS390DR |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | onsemi | onsemi | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Obsolete | Obsolete | Active | Active | Obsolete |
| Logic Type | Counter, Decade | Binary Counter | Counter, Decade | Counter, Decade | Binary Counter | Counter, Decade |
| Direction | Up | Up | Up | Up | Up | Up |
| Number of Elements | 2 | 2 | 1 | 2 | 1 | 2 |
| Number of Bits per Element | 4 | 4 | 4 | 4 | 8 | 4 |
| Reset | Asynchronous | Asynchronous | Asynchronous | Asynchronous | Asynchronous | Asynchronous |
| Timing | - | - | - | - | - | - |
| Count Rate | 35 MHz | 35 MHz | 42 MHz | 35 MHz | 35 MHz | 35 MHz |
| Trigger Type | Negative Edge | Negative Edge | Negative Edge | Negative Edge | Positive Edge | Negative 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 | 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 | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole | Surface Mount | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SOIC | 14-SOIC | 14-SOIC | 16-PDIP | 16-SOIC | 16-SOIC |
